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v1.5.8

Documentation & Examples

Downloads for v1.5.8

filename sha256 hash
kubernetes.tar.gz 6a3fad3dcc3c59f926e5c0110d16edfc323fdd5482c83102b3f8068b420702db
kubernetes-src.tar.gz 0a1fea0278f77a7ede1f64c05e8c69ba5ea2a9403d579db2247963e7869ff9e5

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 95061ccf35dfe1d9aac0dd55c542c8f1b04874892196b0b71185ba3ea61ec424
kubernetes-client-darwin-amd64.tar.gz 37b14062a8f3701efa12cb2ae9eecef2831d31881990a15bbb526689b0fd2712
kubernetes-client-linux-386.tar.gz 4c1b83462cc9c11144c957beca3479a16162ccd283462d3b6b2afcfa40550137
kubernetes-client-linux-amd64.tar.gz 0baefc8e2c01bddf550764a77d6fb345df331bbc4f2f56efb036d3dd50b64562
kubernetes-client-linux-arm64.tar.gz f0fa7369d03b330bc655f5055e8527e7211936baf3277444947e3b7c9441568e
kubernetes-client-linux-arm.tar.gz 40e1c8e89cc93ed072858afb80eac48524282f9d6a7d2510676ddb319458d0a5
kubernetes-client-windows-386.tar.gz 8ca51905157ff3e9fff9bbd0930678c6c9ef885a14ae8580a1595aa56ac66284
kubernetes-client-windows-amd64.tar.gz b4120b9691a13188cf1328d364d7878f0b8d893636b58e3388291142a000e69f

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 7e17b17e967722546541fdaeead4dc40037ddce4107aa2b2a561ea577aa62101
kubernetes-server-linux-arm64.tar.gz 2928098e581d2ffba2750222a238d4c4e93ab31efd09977d0447964d25cc14bd
kubernetes-server-linux-arm.tar.gz 65b23196a1e55e2ab3893b9e147568aaa35cbf46bc588cb0913349a93b70678c

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 4d73ccd2ecac0f2e161f88e4d77004298d10a009f9b5fa0203fa7bff70a82e30
kubernetes-node-linux-arm64.tar.gz 03244b9c4149d6153eb9459e3774a4a0257fd66d3532add5721223925b6fa26f
kubernetes-node-linux-arm.tar.gz d071b710ec898b5630c776f0f6f88f44c3c72e6494c235a7c5cd5807df8fb0cb
kubernetes-node-windows-amd64.tar.gz 59448d44c86002386450c8804757bfd63f4c943670d7cf15e9221efa53ee0ef5

Changelog since v1.5.7

Other notable changes

  • Update dnsmasq to the latest version. (#53149, @bowei)
  • On GCP platforms, e2e testing now logs which OS images the cluster was found to have. (#48310, @abgworrall)
  • Update cluster-proportional-autoscaler, etcd-empty-dir-cleanup, fluentd-gcp, and kube-addon-manager addons with refreshed base images containing fixes for CVE-2015-8271, CVE-2016-7543, CVE-2016-9841, CVE-2016-9843, CVE-2017-1000366, CVE-2017-2616, and CVE-2017-7507. (#48011, @ixdy)
  • Bump GLBC version to 0.9.5 - fixes loss of manually modified GCLB health check settings upon upgrade from pre-1.6.4 to either 1.6.4 or 1.6.5. (#47567, @nicksardo)
  • Upgrade golang version to 1.7.6 (#46408, @cblecker)

v1.7.7

Documentation & Examples

Downloads for v1.7.7

filename sha256 hash
kubernetes.tar.gz 1fbf1672931464c7b66b93298a6623c97727d9359e5409e7e139a7fbec486591
kubernetes-src.tar.gz 572eda617bdfc4456a5d370a4616bea5684ff8e999faf4677f4665f181961d86

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 661700a452f9ca1c91530e9d0ac1ef7552ae75cfaa86eaa99021b0f30300acd5
kubernetes-client-darwin-amd64.tar.gz eceadcbb092f8bde9d09a1a170aa1ae2af5c07f399995750915a53f0ebbb9f45
kubernetes-client-linux-386.tar.gz 2856189ab86b440439bf1a3eab984fa24a1e2280c0741422940c5f06fe66e49e
kubernetes-client-linux-amd64.tar.gz c314a175fe64c7874d0381037d4ffa8bbfdb729af52f8081a9530771203b3852
kubernetes-client-linux-arm64.tar.gz 5ad395eff828384feec88f624624fe4da822def6e85a540136bbc1968c5f4b6c
kubernetes-client-linux-arm.tar.gz 4636e3f5d1084a31c5abbffe775d241f75bb62d42624b87a7bb85e01f4bdd558
kubernetes-client-linux-ppc64le.tar.gz 08943b8745d463c82c29edaf8adfbb22d5409a57a1d88cbe3d08f584bcd36582
kubernetes-client-linux-s390x.tar.gz 71efa60865c2bbc7024e60f4437404d68417e7855586896ce15856f94972d4e4
kubernetes-client-windows-386.tar.gz 1af19fcb54371732839cf658cb62d6092aef335b234c735a13119b88b667893d
kubernetes-client-windows-amd64.tar.gz 887db68565adac992e0cb2989058b958b60ce4e93704c4286a013277d5e545c5

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 674d73c536e0fccd0c8a773d53c94c27257a63b3a91e36be7b045d6d4a43bd8a
kubernetes-server-linux-arm64.tar.gz 945b7e8d632e9aa5aff7f27d83049a5434472c5fc7ae60010478af42f2c7d85c
kubernetes-server-linux-arm.tar.gz ae535d3875242fadac615655aa86fbefcf86ec244705a9ededbe34e46419ad22
kubernetes-server-linux-ppc64le.tar.gz 1bd286bc6aaea225191953a576fd3be6721624f5baa441257036a7efd382f293
kubernetes-server-linux-s390x.tar.gz 742e11b8eb127ed5fc1f2520f8c4428c4fdace065412f048c6fe6656d7f165be

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 37f0e39673dcaebec761929b13d7a4951cddf9f772adf68d4e43b0783d0a0897
kubernetes-node-linux-arm64.tar.gz 35a1b338484aa6c031a6a3b671e626605d3c89cd9da81ab009b12e69ef9440a2
kubernetes-node-linux-arm.tar.gz 99bedd7379faafde9917090f7c98148b2e9a8b00705738a8ce3e6863644a030e
kubernetes-node-linux-ppc64le.tar.gz 5e9235f4ea823dc6c074ac2d1fcdd23786efc5c9908bf053c7d92540cbf8f4bb
kubernetes-node-linux-s390x.tar.gz 43ed881a44d125e0bf9b00725cfa48f77e7e61661c43e651914879fe2e3305d0
kubernetes-node-windows-amd64.tar.gz 938fa3b2cf0ccc6ab1deb6259e49e88e982cc46dcf801365ba48dda616841ca6

Changelog since v1.7.6

Other notable changes

  • Update kube-dns to 1.14.5 (#53114, @bowei)
  • StatefulSet will now fill the hostname and subdomain fields if they're empty on existing Pods it owns. This allows it to self-correct the issue where StatefulSet Pod DNS entries disappear after upgrading to v1.7.x (#48327). (#51199, @kow3ns)
  • Third Party Resource tests in the e2e suite were incorrectly marked as part of the conformance bucket. They are alpha and are not required for conformance. (#52823, @smarterclayton)
  • fixes upgrade test to work with tightened validation of initializer names in 1.8 (#52592, @liggitt)
  • Fix inconsistent Prometheus cAdvisor metrics (#51473, @bboreham)
  • Fixed an issue reporting lack of progress for a deployment prematurely (#52178, @kargakis)
  • [fluentd-gcp addon] Bug with event-exporter leaking memory on metrics in clusters with CA is fixed. (#52263, @crassirostris)

v1.8.0

Documentation & Examples

Downloads for v1.8.0

filename sha256 hash
kubernetes.tar.gz 802a2bc9e9da6d146c71cc446a5faf9304de47996e86134270c725e6440cbb7d
kubernetes-src.tar.gz 0ea97d20a2d47d9c5f8e791f63bee7e27f836e1a19cf0f15f39e726ae69906a0

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 22d82ec72e336700562f537b2e0250eb2700391f9b85b12dfc9a4c61428f1db1
kubernetes-client-darwin-amd64.tar.gz de86af6d5b6da9680e93c3d65d889a8ccb59a3a701f3e4ca7a810ffd85ed5eda
kubernetes-client-linux-386.tar.gz 4fef05d4b392c2df9f8ffb33e66ee5415671258100c0180f2e1c0befc37a2ac3
kubernetes-client-linux-amd64.tar.gz bef36b2cdcf66a14aa7fc2354c692fb649dc0521d2a76cd3ebde6ca4cb6bad09
kubernetes-client-linux-arm64.tar.gz 4cfd3057db15d1e9e5cabccec3771e1efa37f9d7acb47e90d42fece86daff608
kubernetes-client-linux-arm.tar.gz 29d9a5faf6a8a1a911fe675e10b8df665f6b82e8f3ee75ca901062f7a3af43ec
kubernetes-client-linux-ppc64le.tar.gz f467c37c75ba5b7125bc2f831efe3776e2a85eeb7245c11aa8accc26cf14585b
kubernetes-client-linux-s390x.tar.gz e0de490b6ce67abf1b158a57c103098ed974a594c677019032fce3d1c9825138
kubernetes-client-windows-386.tar.gz 02ea1cd79b591dbc313fab3d22a985219d46f939d79ecc3106fb21d0cb1422cb
kubernetes-client-windows-amd64.tar.gz 8ca1f609d1cf5ec6afb330cfb87d33d20af152324bed60fe4d91995328a257ff

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 23422a7f11c3eab59d686a52abae1bce2f9e2a0916f98ed05c10591ba9c3cbad
kubernetes-server-linux-arm64.tar.gz 17a1e99010ae3a38f1aec7b3a09661521aba6c93a2e6dd54a3e0534e7d2fafe4
kubernetes-server-linux-arm.tar.gz 3aba33a9d06068dbf40418205fb8cb62e2987106093d0c65d99cbdf130e163ee
kubernetes-server-linux-ppc64le.tar.gz 84192c0d520559dfc257f3823f7bf196928b993619a92a27d36f19d2ef209706
kubernetes-server-linux-s390x.tar.gz 246da14c49c21f50c5bc0d6fc78c023f71ccb07a83e224fd3e40d62c4d1a09d0

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 59589cdd56f14b8e879c1854f98072e5ae7ab36835520179fca4887fa9b705e5
kubernetes-node-linux-arm64.tar.gz 99d17807a819dd3d2764c2105f8bc90166126451dc38869b652e9c59be85dc39
kubernetes-node-linux-arm.tar.gz 53b1fa21ba4172bfdad677e60360be3e3f28b26656e83d4b63b038d8a31f3cf0
kubernetes-node-linux-ppc64le.tar.gz 9d10e2d1417fa6c18c152a5ac0202191bf27aab49e473926707c7de479112f46
kubernetes-node-linux-s390x.tar.gz cb4e8e9b00484e3f96307e56c61107329fbfcf6eba8362a971053439f64b0304
kubernetes-node-windows-amd64.tar.gz 6ca4af62b53947d854562f5a51f4a02daa4738b68015608a599ae416887ffce8

Introduction to v1.8.0

Kubernetes version 1.8 includes new features and enhancements, as well as fixes to identified issues. The release notes contain a brief overview of the important changes introduced in this release. The content is organized by Special Interest Groups (SIGs).

For initial installations, see the Setup topics in the Kubernetes documentation.

To upgrade to this release from a previous version, take any actions required Before Upgrading.

For more information about the release and for the latest documentation, see the Kubernetes documentation.

Major Themes

Kubernetes is developed by community members whose work is organized into Special Interest Groups. For the 1.8 release, each SIG provides the themes that guided their work.

SIG API Machinery

SIG API Machinery is responsible for all aspects of the API server: API registration and discovery, generic API CRUD semantics, admission control, encoding/decoding, conversion, defaulting, persistence layer (etcd), OpenAPI, third-party resources, garbage collection, and client libraries.

For the 1.8 release, SIG API Machinery focused on stability and on ecosystem enablement. Features include the ability to break large LIST calls into smaller chunks, improved support for API server customization with either custom API servers or Custom Resource Definitions, and client side event spam filtering.

SIG Apps

SIG Apps focuses on the Kubernetes APIs and the external tools that are required to deploy and operate Kubernetes workloads.

For the 1.8 release, SIG Apps moved the Kubernetes workloads API to the new apps/v1beta2 group and version. The DaemonSet, Deployment, ReplicaSet, and StatefulSet objects are affected by this change. The new apps/v1beta2 group and version provide a stable and consistent API surface for building applications in Kubernetes. For details about deprecations and behavioral changes, see Notable Features. SIG Apps intends to promote this version to GA in a future release.

SIG Auth

SIG Auth is responsible for Kubernetes authentication and authorization, and for cluster security policies.

For the 1.8 release, SIG Auth focused on stablizing existing features that were introduced in previous releases. RBAC was moved from beta to v1, and advanced auditing was moved from alpha to beta. Encryption of resources stored on disk (resources at rest) remained in alpha, and the SIG began exploring integrations with external key management systems.

SIG Autoscaling

SIG Autoscaling is responsible for autoscaling-related components, such as the Horizontal Pod Autoscaler and Cluster Autoscaler.

For the 1.8 release, SIG Autoscaling continued to focus on stabilizing features introduced in previous releases: the new version of the Horizontal Pod Autoscaler API, which supports custom metrics, and the Cluster Autoscaler, which provides improved performance and error reporting.

SIG Cluster Lifecycle

SIG Cluster Lifecycle is responsible for the user experience of deploying, upgrading, and deleting clusters.

For the 1.8 release, SIG Cluster Lifecycle continued to focus on expanding the capabilities of kubeadm, which is both a user-facing tool to manage clusters and a building block for higher-level provisioning systems. Starting with the 1.8 release, kubeadm supports a new upgrade command and includes alpha support for self hosting the cluster control plane.

SIG Instrumentation

SIG Instrumentation is responsible for metrics production and collection.

For the 1.8 release, SIG Instrumentation focused on stabilizing the APIs and components that are required to support the new version of the Horizontal Pod Autoscaler API: the resource metrics API, custom metrics API, and metrics-server, which is the new replacement for Heapster in the default monitoring pipeline.

SIG Multi-cluster (formerly known as SIG Federation)

SIG Multi-cluster is responsible for infrastructure that supports the efficient and reliable management of multiple Kubernetes clusters, and applications that run in and across multiple clusters.

For the 1.8 release, SIG Multicluster focussed on expanding the set of Kubernetes primitives that our Cluster Federation control plane supports, expanding the number of approaches taken to multi-cluster management (beyond our initial Federation approach), and preparing to release Federation for general availability ('GA').

SIG Node

SIG Node is responsible for the components that support the controlled interactions between pods and host resources, and manage the lifecycle of pods scheduled on a node.

For the 1.8 release, SIG Node continued to focus on a broad set of workload types, including hardware and performance sensitive workloads such as data analytics and deep learning. The SIG also delivered incremental improvements to node reliability.

SIG Network

SIG Network is responsible for networking components, APIs, and plugins in Kubernetes.

For the 1.8 release, SIG Network enhanced the NetworkPolicy API to support pod egress traffic policies. The SIG also provided match criteria that allow policy rules to match a source or destination CIDR. Both features are in beta. SIG Network also improved the kube-proxy to include an alpha IPVS mode in addition to the current iptables and userspace modes.

SIG Scalability

SIG Scalability is responsible for scalability testing, measuring and improving system performance, and answering questions related to scalability.

For the 1.8 release, SIG Scalability focused on automating large cluster scalability testing in a continuous integration (CI) environment. The SIG defined a concrete process for scalability testing, created documentation for the current scalability thresholds, and defined a new set of Service Level Indicators (SLIs) and Service Level Objectives (SLOs) for the system. Here's the release scalability validation report.

SIG Scheduling

SIG Scheduling is responsible for generic scheduler and scheduling components.

For the 1.8 release, SIG Scheduling extended the concept of cluster sharing by introducing pod priority and pod preemption. These features allow mixing various types of workloads in a single cluster, and help reach higher levels of resource utilization and availability. These features are in alpha. SIG Scheduling also improved the internal APIs for scheduling and made them easier for other components and external schedulers to use.

SIG Storage

SIG Storage is responsible for storage and volume plugin components.

For the 1.8 release, SIG Storage extended the Kubernetes storage API. In addition to providing simple volume availability, the API now enables volume resizing and snapshotting. These features are in alpha. The SIG also focused on providing more control over storage: the ability to set requests and limits on ephemeral storage, the ability to specify mount options, more metrics, and improvements to Flex driver deployments.

Before Upgrading

Consider the following changes, limitations, and guidelines before you upgrade:

  • The kubelet now fails if swap is enabled on a node. To override the default and run with /proc/swaps on, set --fail-swap-on=false. The experimental flag --experimental-fail-swap-on is deprecated in this release, and will be removed in a future release.

  • The autoscaling/v2alpha1 API is now at autoscaling/v2beta1. However, the form of the API remains unchanged. Migrate the HorizontalPodAutoscaler resources to autoscaling/v2beta1 to persist the HorizontalPodAutoscaler changes introduced in autoscaling/v2alpha1. The Horizontal Pod Autoscaler changes include support for status conditions, and autoscaling on memory and custom metrics.

  • The metrics APIs, custom-metrics.metrics.k8s.io and metrics, were moved from v1alpha1 to v1beta1, and renamed to custom.metrics.k8s.io and metrics.k8s.io, respectively. If you have deployed a custom metrics adapter, ensure that it supports the new API version. If you have deployed Heapster in aggregated API server mode, upgrade Heapster to support the latest API version.

  • Advanced auditing is the default auditing mechanism at v1beta1. The new version introduces the following changes:

    • The --audit-policy-file option is required if the AdvancedAudit feature is not explicitly turned off (--feature-gates=AdvancedAudit=false) on the API server.

    • The audit log file defaults to JSON encoding when using the advanced auditing feature gate.

    • The --audit-policy-file option requires kind and apiVersion fields specifying what format version the Policy is using.

    • The webhook and log file now output the v1beta1 event format.

      For more details, see Advanced audit.

  • The deprecated ThirdPartyResource (TPR) API was removed. To avoid losing your TPR data, migrate to CustomResourceDefinition.

  • The following deprecated flags were removed from kube-controller-manager:

    • replication-controller-lookup-cache-size
    • replicaset-lookup-cache-size
    • daemonset-lookup-cache-size

    Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

  • StatefulSet: The deprecated pod.alpha.kubernetes.io/initialized annotation for interrupting the StatefulSet Pod management is now ignored. StatefulSets with this annotation set to true or with no value will behave just as they did in previous versions. Dormant StatefulSets with the annotation set to false will become active after upgrading.

  • The CronJob object is now enabled by default at v1beta1. CronJob v2alpha1 is still available, but it must be explicitly enabled. We recommend that you move any current CronJob objects to batch/v1beta1.CronJob. Be aware that if you specify the deprecated version, you may encounter Resource Not Found errors. These errors occur because the new controllers look for the new version during a rolling update.

  • The batch/v2alpha1.ScheduledJob was removed. Migrate to batch/v1beta.CronJob to continue managing time based jobs.

  • The rbac/v1alpha1, settings/v1alpha1, and scheduling/v1alpha1 APIs are disabled by default.

  • The system:node role is no longer automatically granted to the system:nodes group in new clusters. The role gives broad read access to resources, including secrets and configmaps. Use the Node authorization mode to authorize the nodes in new clusters. To continue providing the system:node role to the members of the system:nodes group, create an installation-specific ClusterRoleBinding in the installation. ([#49638](https://github.com/kubernetes/kubernetes/pull/49638))

Known Issues

This section contains a list of known issues reported in Kubernetes 1.8 release. The content is populated via v1.8.x known issues and FAQ accumulator.

  • A performance issue was identified in large-scale clusters when deleting thousands of pods simultaneously across hundreds of nodes. Kubelets in this scenario can encounter temporarily increased latency of delete pod API calls -- above the target service level objective of 1 second. If you run clusters with this usage pattern and if pod deletion latency could be an issue for you, you might want to wait until the issue is resolved before you upgrade.

For more information and for updates on resolution of this issue, see [#51899](https://issue.k8s.io/51899).

  • Audit logs might impact the API server performance and the latency of large request and response calls. The issue is observed under the following conditions: if AdvancedAuditing feature gate is enabled, which is the default case, if audit logging uses the log backend in JSON format, or if the audit policy records large API calls for requests or responses.

For more information, see [#51899](https://github.com/kubernetes/kubernetes/issues/51899).

  • Minikube version 0.22.2 or lower does not work with kubectl version 1.8 or higher. This issue is caused by the presence of an unregistered type in the minikube API server. New versions of kubectl force validate the OpenAPI schema, which is not registered with all known types in the minikube API server.

For more information, see #1996.

  • The ENABLE_APISERVER_BASIC_AUDIT configuration parameter for GCE deployments is broken, but deprecated.

For more information, see [#53154](https://github.com/kubernetes/kubernetes/issues/53154).

  • kubectl set commands placed on ReplicaSet and DaemonSet occasionally return version errors. All set commands, including set image, set env, set resources, and set serviceaccounts, are affected.

For more information, see [#53040](https://github.com/kubernetes/kubernetes/issues/53040).

  • Object quotas are not consistently charged or updated. Specifically, the object count quota does not reliably account for uninitialized objects. Some quotas are charged only when an object is initialized. Others are charged when an object is created, whether it is initialized or not. We plan to fix this issue in a future release.

For more information, see [#53109](https://github.com/kubernetes/kubernetes/issues/53109).

Deprecations

This section provides an overview of deprecated API versions, options, flags, and arguments. Deprecated means that we intend to remove the capability from a future release. After removal, the capability will no longer work. The sections are organized by SIGs.

Apps

  • The .spec.rollbackTo field of the Deployment kind is deprecated in extensions/v1beta1.

  • The kubernetes.io/created-by annotation is deprecated and will be removed in version 1.9. Use ControllerRef instead to determine which controller, if any, owns an object.

  • The batch/v2alpha1.CronJob is deprecated in favor of batch/v1beta1.

  • The batch/v2alpha1.ScheduledJob was removed. Use batch/v1beta1.CronJob instead.

Auth

  • The RBAC v1alpha1 API group is deprecated in favor of RBAC v1.

  • The API server flag --experimental-bootstrap-token-auth is deprecated in favor of --enable-bootstrap-token-auth. The --experimental-bootstrap-token-auth flag will be removed in version 1.9.

Autoscaling

  • Consuming metrics directly from Heapster is deprecated in favor of consuming metrics via an aggregated version of the resource metrics API.

    • In version 1.8, enable this behavior by setting the --horizontal-pod-autoscaler-use-rest-clients flag to true.

    • In version 1.9, this behavior will be enabled by default, and must be explicitly disabled by setting the --horizontal-pod-autoscaler-use-rest-clients flag to false.

Cluster Lifecycle

  • The auto-detect behavior of the kubelet's --cloud-provider flag is deprecated.

    • In version 1.8, the default value for the kubelet's --cloud-provider flag is auto-detect. Be aware that it works only on GCE, AWS and Azure.

    • In version 1.9, the default will be "", which means no built-in cloud provider extension will be enabled by default.

    • Enable an out-of-tree cloud provider with --cloud-provider=external in either version.

      For more information on deprecating auto-detecting cloud providers in kubelet, see [PR #51312](https://github.com/kubernetes/kubernetes/pull/51312) and announcement.

  • The PersistentVolumeLabel admission controller in the API server is deprecated.

    • The replacement is running a cloud-specific controller-manager (often referred to as cloud-controller-manager) with the PersistentVolumeLabel controller enabled. This new controller loop operates as the PersistentVolumeLabel admission controller did in previous versions.

    • Do not use the PersistentVolumeLabel admission controller in the configuration files and scripts unless you are dependent on the in-tree GCE and AWS cloud providers.

    • The PersistentVolumeLabel admission controller will be removed in a future release, when the out-of-tree versions of the GCE and AWS cloud providers move to GA. The cloud providers are marked alpha in version 1.9.

OpenStack

Scheduling

  • Opaque Integer Resources (OIRs) are deprecated and will be removed in version 1.9. Extended Resources (ERs) are a drop-in replacement for OIRs. You can use any domain name prefix outside of the kubernetes.io/ domain instead of the pod.alpha.kubernetes.io/opaque-int-resource- prefix.

Notable Features

Workloads API (apps/v1beta2)

Kubernetes 1.8 adds the apps/v1beta2 group and version, which now consists of the DaemonSet, Deployment, ReplicaSet and StatefulSet kinds. This group and version are part of the Kubernetes Workloads API. We plan to move them to v1 in an upcoming release, so you might want to plan your migration accordingly.

For more information, see the issue that describes this work in detail

API Object Additions and Migrations

  • The DaemonSet, Deployment, ReplicaSet, and StatefulSet kinds are now in the apps/v1beta2 group and version.

  • The apps/v1beta2 group version adds a Scale subresource for the StatefulSet kind.

  • All kinds in the apps/v1beta2 group version add a corresponding conditions kind.

Behavioral Changes

  • For all kinds in the API group version, a spec.selector default value is no longer available, because it's incompatible with kubectl apply and strategic merge patch. You must explicitly set the spec.selector value in your manifest. An object with a spec.selector value that does not match the labels in its spec.template is invalid.

  • Selector mutation is disabled for all kinds in the app/v1beta2 group version, because the controllers in the workloads API do not handle selector mutation in a consistent way. This restriction may be lifted in the future, but it is likely that that selectors will remain immutable after the move to v1. You can continue to use code that depends on mutable selectors by calling the apps/v1beta1 API in this release, but you should start planning for code that does not depend on mutable selectors.

  • Extended Resources are fully-qualified resource names outside the kubernetes.io domain. Extended Resource quantities must be integers. You can specify any resource name of the form [aaa.]my-domain.bbb/ccc in place of Opaque Integer Resources. Extended resources cannot be overcommitted, so make sure that request and limit are equal if both are present in a container spec.

  • The default Bootstrap Token created with kubeadm init v1.8 expires and is deleted after 24 hours by default to limit the exposure of the valuable credential. You can create a new Bootstrap Token with kubeadm token create or make the default token permanently valid by specifying --token-ttl 0 to kubeadm init. The default token can later be deleted with kubeadm token delete.

  • kubeadm join now delegates TLS Bootstrapping to the kubelet itself, instead of reimplementing the process. kubeadm join writes the bootstrap kubeconfig file to /etc/kubernetes/bootstrap-kubelet.conf.

Defaults

  • The default spec.updateStrategy for the StatefulSet and DaemonSet kinds is RollingUpdate for the apps/v1beta2 group version. You can explicitly set the OnDelete strategy, and no strategy auto-conversion is applied to replace default values.

  • As mentioned in Behavioral Changes, selector defaults are disabled.

  • The default spec.revisionHistoryLimit for all applicable kinds in the apps/v1beta2 group version is 10.

  • In a CronJob object, the default spec.successfulJobsHistoryLimit is 3, and the default spec.failedJobsHistoryLimit is 1.

Workloads API (batch)

CLI Changes

  • [alpha] kubectl plugins: kubectl now allows binary extensibility. You can extend the default set of kubectl commands by writing plugins that provide new subcommands. Refer to the documentation for more information.

  • kubectl rollout and rollback now support StatefulSet.

  • kubectl scale now uses the Scale subresource for kinds in the apps/v1beta2 group.

  • kubectl create configmap and kubectl create secret subcommands now support the --append-hash flag, which enables unique but deterministic naming for objects generated from files, for example with --from-file.

  • kubectl run can set a service account name in the generated pod spec with the --serviceaccount flag.

  • kubectl proxy now correctly handles the exec, attach, and portforward commands. You must pass --disable-filter to the command to allow these commands.

  • Added cronjobs.batch to "all", so that kubectl get all returns them.

  • Added flag --include-uninitialized to kubectl annotate, apply, edit-last-applied, delete, describe, edit, get, label, and set. --include-uninitialized=true makes kubectl commands apply to uninitialized objects, which by default are ignored if the names of the objects are not provided. --all also makes kubectl commands apply to uninitialized objects. See the initializer documentation for more details.

  • Added RBAC reconcile commands with kubectl auth reconcile -f FILE. When passed a file which contains RBAC roles, rolebindings, clusterroles, or clusterrolebindings, this command computes covers and adds the missing rules. The logic required to properly apply RBAC permissions is more complicated than a JSON merge because you have to compute logical covers operations between rule sets. This means that we cannot use kubectl apply to update RBAC roles without risking breaking old clients, such as controllers.

  • kubectl delete no longer scales down workload API objects before deletion. Users who depend on ordered termination for the Pods of their StatefulSets must use kubectl scale to scale down the StatefulSet before deletion.

  • kubectl run --env no longer supports CSV parsing. To provide multiple environment variables, use the --env flag multiple times instead. Example: --env ONE=1 --env TWO=2 instead of --env ONE=1,TWO=2.

  • Removed deprecated command kubectl stop.

  • Kubectl can now use http caching for the OpenAPI schema. The cache directory can be configured by passing the --cache-dir command line flag to kubectl. If set to an empty string, caching is disabled.

  • Kubectl now performs validation against OpenAPI schema instead of Swagger 1.2. If OpenAPI is not available on the server, it falls back to the old Swagger 1.2.

  • Added Italian translation for kubectl.

  • Added German translation for kubectl.

Scheduling

  • [alpha] This version now supports pod priority and creation of PriorityClasses (user doc)(design doc)

  • [alpha] This version now supports priority-based preemption of pods (user doc)(design doc)

  • [alpha] Users can now add taints to nodes by condition (design doc)

Storage

  • [stable] Mount options

    • The ability to specify mount options for volumes is moved from beta to stable.

    • A new MountOptions field in the PersistentVolume spec is available to specify mount options. This field replaces an annotation.

    • A new MountOptions field in the StorageClass spec allows configuration of mount options for dynamically provisioned volumes.

  • [stable] Support Attach and Detach operations for ReadWriteOnce (RWO) volumes that use iSCSI and Fibre Channel plugins.

  • [stable] Expose storage usage metrics

    • The available capacity of a given Persistent Volume (PV) is available by calling the Kubernetes metrics API.

  • [stable] Volume plugin metrics

    • Success and latency metrics for all Kubernetes calls are available by calling the Kubernetes metrics API. You can request volume operations, including mount, unmount, attach, detach, provision, and delete.

  • [stable] The PV spec for Azure File, CephFS, iSCSI, and Glusterfs is modified to reference namespaced resources.

  • [stable] You can now customize the iSCSI initiator name per volume in the iSCSI volume plugin.

  • [stable] You can now specify the World Wide Identifier (WWID) for the volume identifier in the Fibre Channel volume plugin.

  • [beta] Reclaim policy in StorageClass

    • You can now configure the reclaim policy in StorageClass, instead of defaulting to delete for dynamically provisioned volumes.

  • [alpha] Volume resizing

    • You can now increase the size of a volume by calling the Kubernetes API.

    • For alpha, this feature increases only the size of the underlying volume. It does not support resizing the file system.

    • For alpha, volume resizing supports only Gluster volumes.

  • [alpha] Provide capacity isolation and resource management for local ephemeral storage

    • You can now set container requests, container limits, and node allocatable reservations for the new ephemeral-storage resource.

    • The ephemeral-storage resource includes all the disk space a container might consume with container overlay or scratch.

  • [alpha] Mount namespace propagation

    • The VolumeMount.Propagation field for VolumeMount in pod containers is now available.

    • You can now set VolumeMount.Propagation to Bidirectional to enable a particular mount for a container to propagate itself to the host or other containers.

  • [alpha] Improve Flex volume deployment

    • Flex volume driver deployment is simplified in the following ways:

      • New driver files can now be automatically discovered and initialized without requiring a kubelet or controller-manager restart.

      • A sample DaemonSet to deploy Flexvolume drivers is now available.

  • [prototype] Volume snapshots

Cluster Federation

[alpha] Federated Jobs

Federated Jobs that are automatically deployed to multiple clusters are now supported. Cluster selection and weighting determine how Job parallelism and completions are spread across clusters. Federated Job status reflects the aggregate status across all underlying cluster jobs.

[alpha] Federated Horizontal Pod Autoscaling (HPA)

Federated HPAs are similar to the traditional Kubernetes HPAs, except that they span multiple clusters. Creating a Federated HPA targeting multiple clusters ensures that cluster-level autoscalers are consistently deployed across those clusters, and dynamically managed to ensure that autoscaling can occur optimially in all clusters, within a set of global constraints on the the total number of replicas permitted across all clusters. If replicas are not required in some clusters due to low system load or insufficient quota or capacity in those clusters, additional replicas are made available to the autoscalers in other clusters if required.

Node Components

Autoscaling and Metrics

  • Support for custom metrics in the Horizontal Pod Autoscaler is now at v1beta1. The associated metrics APIs (custom metrics and resource/master metrics) were also moved to v1beta1. For more information, see Before Upgrading.

  • metrics-server is now the recommended way to provide the resource metrics API. Deploy metrics-server as an add-on in the same way that you deploy Heapster.

Cluster Autoscaler
  • Cluster autoscaler is now GA
  • Cluster support size is increased to 1000 nodes
  • Respect graceful pod termination of up to 10 minutes
  • Handle zone stock-outs and failures
  • Improve monitoring and error reporting

Container Runtime Interface (CRI)

  • [alpha] Add a CRI validation test suite and CRI command-line tools. (#292, [@feiskyer](https://github.com/feiskyer))

  • [stable] cri-o: CRI implementation for OCI-based runtimes [@mrunalp]

    • Passed all the Kubernetes 1.7 end-to-end conformance test suites.
    • Verification against Kubernetes 1.8 is planned soon after the release.

  • [stable] frakti: CRI implementation for hypervisor-based runtimes is now v1.1. [@feiskyer]

    • Enhance CNI plugin compatibility, supports flannel, calico, weave and so on.
    • Pass all CRI validation conformance tests and node end-to-end conformance tests.
    • Add experimental Unikernel support.

  • [alpha] cri-containerd: CRI implementation for containerd is now v1.0.0-alpha.0, [@Random-Liu]

    • Feature complete. Support the full CRI API defined in v1.8.
    • Pass all the CRI validation tests and regular node end-to-end tests.
    • An ansible playbook is provided to configure a Kubernetes cri-containerd cluster with kubeadm.

  • Add support in Kubelet to consume container metrics via CRI. [@yguo0905]

    • There are known bugs that result in errors when querying Kubelet's stats summary API. We expect to fix them in v1.8.1.

kubelet

  • [alpha] Kubelet now supports alternative container-level CPU affinity policies by using the new CPU manager. (#375, [@sjenning](https://github.com/sjenning), [@ConnorDoyle](https://github.com/ConnorDoyle))

  • [alpha] Applications may now request pre-allocated hugepages by using the new hugepages resource in the container resource requests. (#275, [@derekwaynecarr](https://github.com/derekwaynecarr))

  • [alpha] Add support for dynamic Kubelet configuration. (#281, [@mtaufen](https://github.com/mtaufen))

  • [alpha] Add the Hardware Device Plugins API. (#368, [@jiayingz], [@RenaudWasTaken])

  • [stable] Upgrade cAdvisor to v0.27.1 with the enhancement for node monitoring. [@dashpole]

    • Fix journalctl leak
    • Fix container memory rss
    • Fix incorrect CPU usage with 4.7 kernel
    • OOM parser uses kmsg
    • Add hugepages support
    • Add CRI-O support

  • Sharing a PID namespace between containers in a pod is disabled by default in version 1.8. To enable for a node, use the --docker-disable-shared-pid=false kubelet flag. Be aware that PID namespace sharing requires Docker version greater than or equal to 1.13.1.

  • Fix issues related to the eviction manager.

  • Fix inconsistent Prometheus cAdvisor metrics.

  • Fix issues related to the local storage allocatable feature.

Auth

Cluster Lifecycle

kubeadm

  • [beta] A new upgrade subcommand allows you to automatically upgrade a self-hosted cluster created with kubeadm. (#296, [@luxas](https://github.com/luxas))

  • [alpha] An experimental self-hosted cluster can now easily be created with kubeadm init. Enable the feature by setting the SelfHosting feature gate to true: --feature-gates=SelfHosting=true (#296, [@luxas](https://github.com/luxas))

    • NOTE: Self-hosting will be the default way to host the control plane in the next release, v1.9

  • [alpha] A new phase subcommand supports performing only subtasks of the full kubeadm init flow. Combined with fine-grained configuration, kubeadm is now more easily consumable by higher-level provisioning tools like kops or GKE. (#356, [@luxas](https://github.com/luxas))

    • NOTE: This command is currently staged under kubeadm alpha phase and will be graduated to top level in a future release.

kops

Cluster Discovery/Bootstrap

Multi-platform

Cloud Providers

Network

network-policy

kube-proxy ipvs mode

[alpha] Support ipvs mode for kube-proxy([#46580](https://github.com/kubernetes/kubernetes/pull/46580), [@haibinxie](https://github.com/haibinxie))

API Machinery

kube-apiserver

  • Fixed an issue with APIService auto-registration. This issue affected rolling restarts of HA API servers that added or removed API groups being served.([#51921](https://github.com/kubernetes/kubernetes/pull/51921))

  • [Alpha] The Kubernetes API server now supports the ability to break large LIST calls into multiple smaller chunks. A client can specify a limit to the number of results to return. If more results exist, a token is returned that allows the client to continue the previous list call repeatedly until all results are retrieved. The resulting list is identical to a list call that does not perform chunking, thanks to capabilities provided by etcd3. This allows the server to use less memory and CPU when very large lists are returned. This feature is gated as APIListChunking and is not enabled by default. The 1.9 release will begin using this by default.([#48921](https://github.com/kubernetes/kubernetes/pull/48921))

  • Pods that are marked for deletion and have exceeded their grace period, but are not yet deleted, no longer count toward the resource quota.([#46542](https://github.com/kubernetes/kubernetes/pull/46542))

Dynamic Admission Control

  • Pod spec is mutable when the pod is uninitialized. The API server requires the pod spec to be valid even if it's uninitialized. Updating the status field of uninitialized pods is invalid.([#51733](https://github.com/kubernetes/kubernetes/pull/51733))

  • Use of the alpha initializers feature now requires enabling the Initializers feature gate. This feature gate is automatically enabled if the Initializers admission plugin is enabled.([#51436](https://github.com/kubernetes/kubernetes/pull/51436))

  • [Action required] The validation rule for metadata.initializers.pending.name is tightened. The initializer name must contain at least three segments, separated by dots. You can create objects with pending initializers and not rely on the API server to add pending initializers according to initializerConfiguration. If you do so, update the initializer name in the existing objects and the configuration files to comply with the new validation rule.([#51283](https://github.com/kubernetes/kubernetes/pull/51283))

  • The webhook admission plugin now works even if the API server and the nodes are in two separate networks,for example, in GKE. The webhook admission plugin now lets the webhook author use the DNS name of the service as the CommonName when generating the server cert for the webhook. Action required: Regenerate the server cert for the admission webhooks. Previously, the CN value could be ignored while generating the server cert for the admission webhook. Now you must set it to the DNS name of the webhook service: <service.Name>.<service.Namespace>.svc.([#50476](https://github.com/kubernetes/kubernetes/pull/50476))

Custom Resource Definitions (CRDs)

  • [alpha] The CustomResourceDefinition API can now optionally validate custom objects based on a JSON schema provided in the CRD spec. Enable this alpha feature with the CustomResourceValidation feature gate in kube-apiserver.

Garbage Collector

  • The garbage collector now supports custom APIs added via Custom Resource Definitions or aggregated API servers. The garbage collector controller refreshes periodically. Therefore, expect a latency of about 30 seconds between when an API is added and when the garbage collector starts to manage it.

Monitoring/Prometheus

  • [action required] The WATCHLIST calls are now reported as WATCH verbs in prometheus for the apiserver_request_* series. A new "scope" label is added to all apiserver_request_* values that is either 'cluster', 'resource', or 'namespace' depending on which level the query is performed at.([#52237](https://github.com/kubernetes/kubernetes/pull/52237))

Go Client

External Dependencies

Continuous integration builds use Docker versions 1.11.2, 1.12.6, 1.13.1, and 17.03.2. These versions were validated on Kubernetes 1.8. However, consult an appropriate installation or upgrade guide before deciding what versions of Docker to use.

v1.8.0-rc.1

Documentation & Examples

Downloads for v1.8.0-rc.1

filename sha256 hash
kubernetes.tar.gz 122d3ca2addb168c68e65a515bc42c21ad6c4bc71cb71591c699ba035765994b
kubernetes-src.tar.gz 8903266d4379f03059fcd9398d3bcd526b979b3c4b49e75aa13cce38de6f4e91

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz c4cae289498888db775abd833de1544adc632913e46879c6f770c931f29e5d3f
kubernetes-client-darwin-amd64.tar.gz dd7081fc40e71be45cbae1bcd0f0932e5578d662a8054faea96c65efd1c1a134
kubernetes-client-linux-386.tar.gz 728265635b18db308a69ed249dc4a59658aa6db7d23bb3953923f1e54c2d620f
kubernetes-client-linux-amd64.tar.gz 2053862e5461f213c03381a9a05d70c0a28fdaf959600244257f6636ba92d058
kubernetes-client-linux-arm64.tar.gz 956cc6b5afb816734ff439e09323e56210293089858cb6deea92b8d3318463ac
kubernetes-client-linux-arm.tar.gz eca7ff447699849db3ae2d76ac9dad07be86c2ebe652ef774639bf006499ddbc
kubernetes-client-linux-ppc64le.tar.gz 0d593c8034e54a683a629c034677b1c402e3e9516afcf174602e953818c8f0d1
kubernetes-client-linux-s390x.tar.gz 9a7c1771d710d78f4bf45ff41f1a312393a8ee8b0506ee09aeca449c3552a147
kubernetes-client-windows-386.tar.gz 345f50766c627e45f35705b72fb2f56e78cc824af123cf14f5a84954ac1d6c93
kubernetes-client-windows-amd64.tar.gz ea98c0872fa6df3eb5af6f1a005c014a76a0b4b0af9a09fdf90d3bc6a7ee5725

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 58799a02896f7d3c160088832186c8e9499c433e65f0f1eeb37763475e176473
kubernetes-server-linux-arm64.tar.gz cd28ad39762cdf144e5191d4745e2629f37851265dfe44930295a0b13823a998
kubernetes-server-linux-arm.tar.gz 62c75adbe94d17163cbc3e8cbc4091fdb6f5e9dc90a8471aac3f9ee38e609d82
kubernetes-server-linux-ppc64le.tar.gz cee4a1a33dec4facebfa6a1f7780aba6fee91f645fbc0a388e64e93c0d660b17
kubernetes-server-linux-s390x.tar.gz b263139b615372dd95ce404b8e94a51594e7d22b25297934cb189d3c9078b4fb

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 8d6688a224ebc5814e142d296072b7d2352fe86bd338539bd89ac9883b338c3d
kubernetes-node-linux-arm64.tar.gz 1db47ce33af16d8974028017738a6d211a3c7c0b6f0046f70ccc52875ef6cbdf
kubernetes-node-linux-arm.tar.gz ec5eaddbb2a338ab16d801685f98746c465aad45b3d1dcf4dcfc361bd18eb124
kubernetes-node-linux-ppc64le.tar.gz 0ebf091215a2fcf1232a7f0eedf21f3786bbddae26619cf77098ab88670e1935
kubernetes-node-linux-s390x.tar.gz 7443c6753cc6e4d9591064ad87c619b27713f6bb45aef5dcabb1046c2d19f0f3
kubernetes-node-windows-amd64.tar.gz b4bbb5521930fdc71dac52608c145e1e22cc2ab5e823492cbf1b7a46c317654a

Changelog since v1.8.0-beta.1

Action Required

  • New GCE or GKE clusters created with cluster/kube-up.sh will not enable the legacy ABAC authorizer by default. If you would like to enable the legacy ABAC authorizer, export ENABLE_LEGACY_ABAC=true before running cluster/kube-up.sh. (#51367, @cjcullen)

Other notable changes

  • kubeadm: Use the release-1.8 branch by default (#52085, @luxas)
  • PersistentVolumeLabel admission controller is now deprecated. (#52618, @dims)
  • Mark the LBaaS v1 of OpenStack cloud provider deprecated. (#52821, @FengyunPan)
  • NONE (#52819, @verult)
  • Mark image as deliberately optional in v1 Container struct. Many objects in the Kubernetes API inherit the container struct and only Pods require the field to be set. (#48406, @gyliu513)
  • [fluentd-gcp addon] Update Stackdriver plugin to version 0.6.7 (#52565, @crassirostris)
  • Remove duplicate proto errors in kubelet. (#52132, @adityadani)
  • [fluentd-gcp addon] Remove audit logs from the fluentd configuration (#52777, @crassirostris)
  • Set defaults for successfulJobsHistoryLimit (3) and failedJobsHistoryLimit (1) in batch/v1beta1.CronJobs (#52533, @soltysh)
  • Fix: update system spec to support Docker 17.03 (#52666, @yguo0905)
  • Fix panic in ControllerManager on GCE when it has a problem with creating external loadbalancer healthcheck (#52646, @gmarek)
  • PSP: add support for using * as a value in allowedCapabilities to allow to request any capabilities (#51337, @php-coder)
  • [fluentd-gcp addon] By default ingest apiserver audit logs written to file in JSON format. (#52541, @crassirostris)
  • The autoscaling/v2beta1 API group is now enabled by default. (#52549, @DirectXMan12)
  • Add CLUSTER_SIGNING_DURATION environment variable to cluster (#52497, @jcbsmpsn)
    • configuration scripts to allow configuration of signing duration of
    • certificates issued via the Certificate Signing Request API.
  • Introduce policy to allow the HPA to consume the metrics.k8s.io and custom.metrics.k8s.io API groups. (#52572, @DirectXMan12)
  • kubelet to master communication when doing node status updates now has a timeout to prevent indefinite hangs (#52176, @liggitt)
  • Introduced Metrics Server in version v0.2.0. For more details see https://github.com/kubernetes-incubator/metrics-server/releases/tag/v0.2.0. (#52548, @piosz)
  • Adds ROTATE_CERTIFICATES environment variable to kube-up.sh script for GCE (#52115, @jcbsmpsn)
    • clusters. When that var is set to true, the command line flag enabling kubelet
    • client certificate rotation will be added to the kubelet command line.
  • Make sure that resources being updated are handled correctly by Quota system (#52452, @gnufied)
  • WATCHLIST calls are now reported as WATCH verbs in prometheus for the apiserver_request_* series. A new "scope" label is added to all apiserver_request_* values that is either 'cluster', 'resource', or 'namespace' depending on which level the query is performed at. (#52237, @smarterclayton)
  • Fixed the webhook admission plugin so that it works even if the apiserver and the nodes are in two networks (e.g., in GKE). (#50476, @caesarxuchao)
    • Fixed the webhook admission plugin so that webhook author could use the DNS name of the service as the CommonName when generating the server cert for the webhook.
    • Action required:
    • Anyone who generated server cert for admission webhooks need to regenerate the cert. Previously, when generating server cert for the admission webhook, the CN value doesn't matter. Now you must set it to the DNS name of the webhook service, i.e., <service.Name>.<service.Namespace>.svc.
  • Ignore pods marked for deletion that exceed their grace period in ResourceQuota (#46542, @derekwaynecarr)
  • custom resources that use unconventional pluralization now work properly with kubectl and garbage collection (#50012, @deads2k)
  • [fluentd-gcp addon] Fluentd will trim lines exceeding 100KB instead of dropping them. (#52289, @crassirostris)
  • dockershim: check the error when syncing the checkpoint. (#52125, @yujuhong)
  • By default, clusters on GCE no longer sends RequestReceived audit event, if advanced audit is configured. (#52343, @crassirostris)
  • [BugFix] Soft Eviction timer works correctly (#52046, @dashpole)
  • Azuredisk mount on windows node (#51252, @andyzhangx)
  • [fluentd-gcp addon] Bug with event-exporter leaking memory on metrics in clusters with CA is fixed. (#52263, @crassirostris)
  • kubeadm: Enable kubelet client certificate rotation (#52196, @luxas)
  • Scheduler predicate developer should respect equivalence class cache (#52146, @resouer)
  • The kube-cloud-controller-manager flag --service-account-private-key-file was non-functional and is now deprecated. (#50289, @liggitt)
    • The kube-cloud-controller-manager flag --use-service-account-credentials is now honored consistently, regardless of whether --service-account-private-key-file was specified.
  • Fix credentials providers for docker sandbox image. (#51870, @feiskyer)
  • NONE (#52120, @abgworrall)
  • Fixed an issue looking up cronjobs when they existed in more than one API version (#52227, @liggitt)
  • Add priority-based preemption to the scheduler. (#50949, @bsalamat)
  • Add CLUSTER_SIGNING_DURATION environment variable to cluster configuration scripts (#51844, @jcbsmpsn)
    • to allow configuration of signing duration of certificates issued via the Certificate
    • Signing Request API.
  • Adding German translation for kubectl (#51867, @Steffen911)
  • The ScaleIO volume plugin can now read the SDC GUID value as node label scaleio.sdcGuid; if binary drv_cfg is not installed, the plugin will still work properly; if node label not found, it defaults to drv_cfg if installed. (#50780, @vladimirvivien)
  • A policy with 0 rules should return an error (#51782, @charrywanganthony)
  • Log a warning when --audit-policy-file not passed to apiserver (#52071, @CaoShuFeng)

v1.9.0-alpha.1

Documentation & Examples

Downloads for v1.9.0-alpha.1

filename sha256 hash
kubernetes.tar.gz e2dc3eebf79368c783b64f5b6642a287cc2fd777547d99f240a35cce1f620ffc
kubernetes-src.tar.gz ca8659187047f2d38a7c0ee313189c19ec35646c6ebaa8f59f2f098eca33dca0

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 51e0df7e6611ff4a9b3759b05e65c80555317bff03282ef39a9b53b27cdeff42
kubernetes-client-darwin-amd64.tar.gz c6c57cc92cc456a644c0965a6aa2bd260125807b450d69376e0edb6c98aaf4d7
kubernetes-client-linux-386.tar.gz 399c8cb448d76accb71edcb00bee474f172d416c8c4f5253994e4e2d71e0dece
kubernetes-client-linux-amd64.tar.gz fde75d7267592b34609299a93ee7e54b26a948e6f9a1f64ced666c0aae4455aa
kubernetes-client-linux-arm64.tar.gz b38810cf87735efb0af027b7c77e4e8c8f5821f235cf33ae9eee346e6d1a0b84
kubernetes-client-linux-arm.tar.gz a36427c2f2b81d42702a12392070f7dd3635b651bb04ae925d0bdf3ec50f83aa
kubernetes-client-linux-ppc64le.tar.gz 9dee0f636eef09bfec557a50e4f8f4b69e0588bbd0b77f6da50cc155e1679880
kubernetes-client-linux-s390x.tar.gz 4a6246d5de5c3957ed41b8943fa03e74fb646595346f7c72beaf7b030fe6872e
kubernetes-client-windows-386.tar.gz 1ee384f4bb02e614c86bf84cdfdc42faffa659aaba4a1c759ec26f03eb438149
kubernetes-client-windows-amd64.tar.gz e70d8935abefea0307780e899238bb10ec27c8f0d77702cf25de230b6abf7fb4

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 7fff06370c4f37e1fe789cc160fce0c93535991f63d7fe7d001378f17027d9d8
kubernetes-server-linux-arm64.tar.gz 65cd60512ea0bf508aa65f8d22a6f3094db394f00b3cd6bd63fe02b795514ab2
kubernetes-server-linux-arm.tar.gz 0ecb341a047f1a9dface197f11f05f15853570cfb474c82538c7d61b40bd53ae
kubernetes-server-linux-ppc64le.tar.gz cea9eed4c24e7f29994ecc12674bff69d108692d3c9be3e8bd939b3c4f281892
kubernetes-server-linux-s390x.tar.gz 4d50799e5989de6d9ec316d2051497a3617b635e89fa44e01e64fed544d96e07

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz e956b9c1e5b47f800953ad0f82fae23774a2f43079dc02d98a90d5bfdca0bad6
kubernetes-node-linux-arm64.tar.gz ede6a85db555dd84e8d7180bdd58712933c38567ab6c97a80d0845be2974d968
kubernetes-node-linux-arm.tar.gz 4ac6a1784fa1e20be8a4e7fa0ff8b4defc725e6c058ff97068bf7bfa6a11c77d
kubernetes-node-linux-ppc64le.tar.gz 0d9c8c7e0892d7b678f3b4b7736087da91cb40c5f169e4302e9f4637c516207a
kubernetes-node-linux-s390x.tar.gz 2fdde192a84410c784e5d1e813985e9a19ce62e3d9bb2215481cbce9286329da
kubernetes-node-windows-amd64.tar.gz 543110cc69b57471f3824d96cbd16b003ac2cddaa19ca4bdefced0af61fd24f2

Changelog since v1.8.0-alpha.3

Action Required

  • New GCE or GKE clusters created with cluster/kube-up.sh will not enable the legacy ABAC authorizer by default. If you would like to enable the legacy ABAC authorizer, export ENABLE_LEGACY_ABAC=true before running cluster/kube-up.sh. (#51367, @cjcullen)
  • The OwnerReferencesPermissionEnforcement admission plugin now requires update permission on the finalizers subresource of the referenced owner in order to set blockOwnerDeletion on an owner reference. (#49133, @deads2k)
  • The deprecated alpha and beta initContainer annotations are no longer supported. Init containers must be specified using the initContainers field in the pod spec. (#51816, @liggitt)
  • Action required: validation rule on metadata.initializers.pending.name is tightened. The initializer name needs to contain at least three segments separated by dots. If you create objects with pending initializers, (i.e., not relying on apiserver adding pending initializers according to initializerconfiguration), you need to update the initializer name in existing objects and in configuration files to comply to the new validation rule. (#51283, @caesarxuchao)
  • Audit policy supports matching subresources and resource names, but the top level resource no longer matches the subresouce. For example "pods" no longer matches requests to the logs subresource of pods. Use "pods/logs" to match subresources. (#48836, @ericchiang)
  • Protobuf serialization does not distinguish between [] and null. (#45294, @liggitt)
    • API fields previously capable of storing and returning either [] and null via JSON API requests (for example, the Endpoints subsets field) can now store only null when created using the protobuf content-type or stored in etcd using protobuf serialization (the default in 1.6+). JSON API clients should tolerate null values for such fields, and treat null and [] as equivalent in meaning unless specifically documented otherwise for a particular field.

Other notable changes

  • PersistentVolumeLabel admission controller is now deprecated. (#52618, @dims)
  • Mark the LBaaS v1 of OpenStack cloud provider deprecated. (#52821, @FengyunPan)
  • NONE (#52819, @verult)
  • Mark image as deliberately optional in v1 Container struct. Many objects in the Kubernetes API inherit the container struct and only Pods require the field to be set. (#48406, @gyliu513)
  • [fluentd-gcp addon] Update Stackdriver plugin to version 0.6.7 (#52565, @crassirostris)
  • Remove duplicate proto errors in kubelet. (#52132, @adityadani)
  • [fluentd-gcp addon] Remove audit logs from the fluentd configuration (#52777, @crassirostris)
  • Set defaults for successfulJobsHistoryLimit (3) and failedJobsHistoryLimit (1) in batch/v1beta1.CronJobs (#52533, @soltysh)
  • Fix: update system spec to support Docker 17.03 (#52666, @yguo0905)
  • Fix panic in ControllerManager on GCE when it has a problem with creating external loadbalancer healthcheck (#52646, @gmarek)
  • PSP: add support for using * as a value in allowedCapabilities to allow to request any capabilities (#51337, @php-coder)
  • [fluentd-gcp addon] By default ingest apiserver audit logs written to file in JSON format. (#52541, @crassirostris)
  • The autoscaling/v2beta1 API group is now enabled by default. (#52549, @DirectXMan12)
  • Add CLUSTER_SIGNING_DURATION environment variable to cluster (#52497, @jcbsmpsn)
    • configuration scripts to allow configuration of signing duration of
    • certificates issued via the Certificate Signing Request API.
  • Introduce policy to allow the HPA to consume the metrics.k8s.io and custom.metrics.k8s.io API groups. (#52572, @DirectXMan12)
  • kubelet to master communication when doing node status updates now has a timeout to prevent indefinite hangs (#52176, @liggitt)
  • Introduced Metrics Server in version v0.2.0. For more details see https://github.com/kubernetes-incubator/metrics-server/releases/tag/v0.2.0. (#52548, @piosz)
  • Adds ROTATE_CERTIFICATES environment variable to kube-up.sh script for GCE (#52115, @jcbsmpsn)
    • clusters. When that var is set to true, the command line flag enabling kubelet
    • client certificate rotation will be added to the kubelet command line.
  • Make sure that resources being updated are handled correctly by Quota system (#52452, @gnufied)
  • WATCHLIST calls are now reported as WATCH verbs in prometheus for the apiserver_request_* series. A new "scope" label is added to all apiserver_request_* values that is either 'cluster', 'resource', or 'namespace' depending on which level the query is performed at. (#52237, @smarterclayton)
  • Fixed the webhook admission plugin so that it works even if the apiserver and the nodes are in two networks (e.g., in GKE). (#50476, @caesarxuchao)
    • Fixed the webhook admission plugin so that webhook author could use the DNS name of the service as the CommonName when generating the server cert for the webhook.
    • Action required:
    • Anyone who generated server cert for admission webhooks need to regenerate the cert. Previously, when generating server cert for the admission webhook, the CN value doesn't matter. Now you must set it to the DNS name of the webhook service, i.e., <service.Name>.<service.Namespace>.svc.
  • Ignore pods marked for deletion that exceed their grace period in ResourceQuota (#46542, @derekwaynecarr)
  • custom resources that use unconventional pluralization now work properly with kubectl and garbage collection (#50012, @deads2k)
  • [fluentd-gcp addon] Fluentd will trim lines exceeding 100KB instead of dropping them. (#52289, @crassirostris)
  • dockershim: check the error when syncing the checkpoint. (#52125, @yujuhong)
  • By default, clusters on GCE no longer sends RequestReceived audit event, if advanced audit is configured. (#52343, @crassirostris)
  • [BugFix] Soft Eviction timer works correctly (#52046, @dashpole)
  • Azuredisk mount on windows node (#51252, @andyzhangx)
  • [fluentd-gcp addon] Bug with event-exporter leaking memory on metrics in clusters with CA is fixed. (#52263, @crassirostris)
  • kubeadm: Enable kubelet client certificate rotation (#52196, @luxas)
  • Scheduler predicate developer should respect equivalence class cache (#52146, @resouer)
  • The kube-cloud-controller-manager flag --service-account-private-key-file was non-functional and is now deprecated. (#50289, @liggitt)
    • The kube-cloud-controller-manager flag --use-service-account-credentials is now honored consistently, regardless of whether --service-account-private-key-file was specified.
  • Fix credentials providers for docker sandbox image. (#51870, @feiskyer)
  • NONE (#52120, @abgworrall)
  • Fixed an issue looking up cronjobs when they existed in more than one API version (#52227, @liggitt)
  • Add priority-based preemption to the scheduler. (#50949, @bsalamat)
  • Add CLUSTER_SIGNING_DURATION environment variable to cluster configuration scripts (#51844, @jcbsmpsn)
    • to allow configuration of signing duration of certificates issued via the Certificate
    • Signing Request API.
  • Adding German translation for kubectl (#51867, @Steffen911)
  • The ScaleIO volume plugin can now read the SDC GUID value as node label scaleio.sdcGuid; if binary drv_cfg is not installed, the plugin will still work properly; if node label not found, it defaults to drv_cfg if installed. (#50780, @vladimirvivien)
  • A policy with 0 rules should return an error (#51782, @charrywanganthony)
  • Log a warning when --audit-policy-file not passed to apiserver (#52071, @CaoShuFeng)
  • Fixes an issue with upgrade requests made via pod/service/node proxy subresources sending a non-absolute HTTP request-uri to backends (#52065, @liggitt)
  • kubeadm: add kubeadm phase addons command (#51171, @andrewrynhard)
  • Fix for Nodes in vSphere lacking an InternalIP. (#48760) (#49202, @cbonte)
  • v2 of the autoscaling API group, including improvements to the HorizontalPodAutoscaler, has moved from alpha1 to beta1. (#50708, @DirectXMan12)
  • Fixed a bug where some alpha features were enabled by default. (#51839, @jennybuckley)
  • Implement StatsProvider interface using CRI stats (#51557, @yguo0905)
  • set AdvancedAuditing feature gate to true by default (#51943, @CaoShuFeng)
  • Migrate the metrics/v1alpha1 API to metrics/v1beta1. The HorizontalPodAutoscaler (#51653, @DirectXMan12)
    • controller REST client now uses that version. For v1beta1, the API is now known as
    • resource-metrics.metrics.k8s.io.
  • In GCE with COS, increase TasksMax for Docker service to raise cap on number of threads/processes used by containers. (#51986, @yujuhong)
  • Fixes an issue with APIService auto-registration affecting rolling HA apiserver restarts that add or remove API groups being served. (#51921, @liggitt)
  • Sharing a PID namespace between containers in a pod is disabled by default in 1.8. To enable for a node, use the --docker-disable-shared-pid=false kubelet flag. Note that PID namespace sharing requires docker >= 1.13.1. (#51634, @verb)
  • Build test targets for all server platforms (#51873, @luxas)
  • Add EgressRule to NetworkPolicy (#51351, @cmluciano)
  • Allow DNS resolution of service name for COS using containerized mounter. It fixed the issue with DNS resolution of NFS and Gluster services. (#51645, @jingxu97)
  • Fix journalctl leak on kubelet restart (#51751, @dashpole)
    • Fix container memory rss
    • Add hugepages monitoring support
    • Fix incorrect CPU usage metrics with 4.7 kernel
    • Add tmpfs monitoring support
  • Support for Huge pages in empty_dir volume plugin (#50072, @squall0gd)
    • Huge pages can now be used with empty dir volume plugin.
  • Alpha support for pre-allocated hugepages (#50859, @derekwaynecarr)
  • add support for client-side spam filtering of events (#47367, @derekwaynecarr)
  • Provide a way to omit Event stages in audit policy (#49280, @CaoShuFeng)
  • Introduced Metrics Server (#51792, @piosz)
  • Implement Controller for growing persistent volumes (#49727, @gnufied)
  • Kubernetes 1.8 supports docker version 1.11.x, 1.12.x and 1.13.x. And also supports overlay2. (#51845, @Random-Liu)
  • The Deployment, DaemonSet, and ReplicaSet kinds in the extensions/v1beta1 group version are now deprecated, as are the Deployment, StatefulSet, and ControllerRevision kinds in apps/v1beta1. As they will not be removed until after a GA version becomes available, you may continue to use these kinds in existing code. However, all new code should be developed against the apps/v1beta2 group version. (#51828, @kow3ns)
  • kubeadm: Detect kubelet readiness and error out if the kubelet is unhealthy (#51369, @luxas)
  • Fix providerID update validation (#51761, @karataliu)
  • Calico has been updated to v2.5, RBAC added, and is now automatically scaled when GCE clusters are resized. (#51237, @gunjan5)
  • Add backoff policy and failed pod limit for a job (#51153, @clamoriniere1A)
  • Adds a new alpha EventRateLimit admission control that is used to limit the number of event queries that are accepted by the API Server. (#50925, @staebler)
  • The OpenID Connect authenticator can now use a custom prefix, or omit the default prefix, for username and groups claims through the --oidc-username-prefix and --oidc-groups-prefix flags. For example, the authenticator can map a user with the username "jane" to "google:jane" by supplying the "google:" username prefix. (#50875, @ericchiang)
  • Implemented kubeadm upgrade plan for checking whether you can upgrade your cluster to a newer version (#48899, @luxas)
    • Implemented kubeadm upgrade apply for upgrading your cluster from one version to an other
  • Switch to audit.k8s.io/v1beta1 in audit. (#51719, @soltysh)
  • update QEMU version to v2.9.1 (#50597, @dixudx)
  • controllers backoff better in face of quota denial (#49142, @joelsmith)
  • The event table output under kubectl describe has been simplified to show only the most essential info. (#51748, @smarterclayton)
  • Use arm32v7|arm64v8 images instead of the deprecated armhf|aarch64 image organizations (#50602, @dixudx)
  • audit newest impersonated user info in the ResponseStarted, ResponseComplete audit stage (#48184, @CaoShuFeng)
  • Fixed bug in AWS provider to handle multiple IPs when using more than 1 network interface per ec2 instance. (#50112, @jlz27)
  • Add flag "--include-uninitialized" to kubectl annotate, apply, edit-last-applied, delete, describe, edit, get, label, set. "--include-uninitialized=true" makes kubectl commands apply to uninitialized objects, which by default are ignored if the names of the objects are not provided. "--all" also makes kubectl commands apply to uninitialized objects. Please see the initializer doc for more details. (#50497, @dixudx)
  • GCE: Service object now supports "Network Tiers" as an Alpha feature via annotations. (#51301, @yujuhong)
  • When using kube-up.sh on GCE, user could set env ENABLE_POD_PRIORITY=true to enable pod priority feature gate. (#51069, @MrHohn)
  • The names generated for ControllerRevision and ReplicaSet are consistent with the GenerateName functionality of the API Server and will not contain "bad words". (#51538, @kow3ns)
  • PersistentVolumeClaim metrics like "volume_stats_inodes" and "volume_stats_capacity_bytes" are now reported via kubelet prometheus (#51553, @wongma7)
  • When using IP aliases, use a secondary range rather than subnetwork to reserve cluster IPs. (#51690, @bowei)
  • IPAM controller unifies handling of node pod CIDR range allocation. (#51374, @bowei)
    • It is intended to supersede the logic that is currently in range_allocator
    • and cloud_cidr_allocator. (ALPHA FEATURE)
    • Note: for this change, the other allocators still exist and are the default.
    • It supports two modes:
      • CIDR range allocations done within the cluster that are then propagated out to the cloud provider.
      • Cloud provider managed IPAM that is then reflected into the cluster.
  • The Kubernetes API server now supports the ability to break large LIST calls into multiple smaller chunks. A client can specify a limit to the number of results to return, and if more results exist a token will be returned that allows the client to continue the previous list call repeatedly until all results are retrieved. The resulting list is identical to a list call that does not perform chunking thanks to capabilities provided by etcd3. This allows the server to use less memory and CPU responding with very large lists. This feature is gated as APIListChunking and is not enabled by default. The 1.9 release will begin using this by default from all informers. (#48921, @smarterclayton)
  • add reconcile command to kubectl auth (#51636, @deads2k)
  • Advanced audit allows logging failed login attempts (#51119, @soltysh)
  • kubeadm: Add support for using an external CA whose key is never stored in the cluster (#50832, @nckturner)
  • the custom metrics API (custom.metrics.k8s.io) has moved from v1alpha1 to v1beta1 (#50920, @DirectXMan12)
  • Add backoff policy and failed pod limit for a job (#48075, @clamoriniere1A)
  • Performs validation (when applying for example) against OpenAPI schema rather than Swagger 1.0. (#51364, @apelisse)
  • Make all e2e tests lookup image to use from a centralized place. In that centralized place, add support for multiple platforms. (#49457, @mkumatag)
  • kubelet has alpha support for mount propagation. It is disabled by default and it is there for testing only. This feature may be redesigned or even removed in a future release. (#46444, @jsafrane)
  • Add selfsubjectrulesreview API for allowing users to query which permissions they have in a given namespace. (#48051, @xilabao)
  • Kubelet re-binds /var/lib/kubelet directory with rshared mount propagation during startup if it is not shared yet. (#45724, @jsafrane)
  • Deviceplugin jiayingz (#51209, @jiayingz)
  • Make logdump support kubemark and support gke with 'use_custom_instance_list' (#51834, @shyamjvs)
  • add apps/v1beta2 conversion test (#49645, @dixudx)
  • Fixed an issue (#47800) where kubectl logs -f failed with unexpected stream type "". (#50381, @sczizzo)
  • GCE: Internal load balancer IPs are now reserved during service sync to prevent losing the address to another service. (#51055, @nicksardo)
  • Switch JSON marshal/unmarshal to json-iterator library. Performance should be close to previous with no generated code. (#48287, @thockin)
  • Adds optional group and version information to the discovery interface, so that if an endpoint uses non-default values, the proper value of "kind" can be determined. Scale is a common example. (#49971, @deads2k)
  • Fix security holes in GCE metadata proxy. (#51302, @ihmccreery)
  • #43077 introduced a condition where DaemonSet controller did not respect the TerminationGracePeriodSeconds of the Pods it created. This is now corrected. (#51279, @kow3ns)
  • Tainted nodes by conditions as following: (#49257, @k82cn) * 'node.kubernetes.io/network-unavailable=:NoSchedule' if NetworkUnavailable is true * 'node.kubernetes.io/disk-pressure=:NoSchedule' if DiskPressure is true * 'node.kubernetes.io/memory-pressure=:NoSchedule' if MemoryPressure is true * 'node.kubernetes.io/out-of-disk=:NoSchedule' if OutOfDisk is true
  • rbd: default image format to v2 instead of deprecated v1 (#51574, @dillaman)
  • Surface reasonable error when client detects connection closed. (#51381, @mengqiy)
  • Allow PSP's to specify a whitelist of allowed paths for host volume (#50212, @jhorwit2)
  • For Deployment, ReplicaSet, and DaemonSet, selectors are now immutable when updating via the new apps/v1beta2 API. For backward compatibility, selectors can still be changed when updating via apps/v1beta1 or extensions/v1beta1. (#50719, @crimsonfaith91)
  • Allows kubectl to use http caching mechanism for the OpenAPI schema. The cache directory can be configured through --cache-dir command line flag to kubectl. If set to empty string, caching will be disabled. (#50404, @apelisse)
  • Pod log attempts are now reported in apiserver prometheus metrics with verb CONNECT since they can run for very long periods of time. (#50123, @WIZARD-CXY)
  • The emptyDir.sizeLimit field is now correctly omitted from API requests and responses when unset. (#50163, @jingxu97)
  • Promote CronJobs to batch/v1beta1. (#51465, @soltysh)
  • Add local ephemeral storage support to LimitRange (#50757, @NickrenREN)
  • Add mount options field to StorageClass. The options listed there are automatically added to PVs provisioned using the class. (#51228, @wongma7)
  • Add 'kubectl set env' command for setting environment variables inside containers for resources embedding pod templates (#50998, @zjj2wry)
  • Implement IPVS-based in-cluster service load balancing (#46580, @dujun1990)
  • Release the kubelet client certificate rotation as beta. (#51045, @jcbsmpsn)
  • Adds --append-hash flag to kubectl create configmap/secret, which will append a short hash of the configmap/secret contents to the name during creation. (#49961, @mtaufen)
  • Add validation for CustomResources via JSON Schema. (#47263, @nikhita)
  • enqueue a sync task to wake up jobcontroller to check job ActiveDeadlineSeconds in time (#48454, @weiwei04)
  • Remove previous local ephemeral storage resource names: "ResourceStorageOverlay" and "ResourceStorageScratch" (#51425, @NickrenREN)
  • Add retainKeys to patchStrategy for v1 Volumes and extentions/v1beta1 DeploymentStrategy. (#50296, @mengqiy)
  • Add mount options field to PersistentVolume spec (#50919, @wongma7)
  • Use of the alpha initializers feature now requires enabling the Initializers feature gate. This feature gate is auto-enabled if the Initialzers admission plugin is enabled. (#51436, @liggitt)
  • Fix inconsistent Prometheus cAdvisor metrics (#51473, @bboreham)
  • Add local ephemeral storage to downward API (#50435, @NickrenREN)
  • kubectl zsh autocompletion will work with compinit (#50561, @cblecker)
  • [Experiment Only] When using kube-up.sh on GCE, user could set env KUBE_PROXY_DAEMONSET=true to run kube-proxy as a DaemonSet. kube-proxy is run as static pods by default. (#50705, @MrHohn)
  • Add --request-timeout to kube-apiserver to make global request timeout configurable. (#51415, @jpbetz)
  • Deprecate auto detecting cloud providers in kubelet. Auto detecting cloud providers go against the initiative for out-of-tree cloud providers as we'll now depend on cAdvisor integrations with cloud providers instead of the core repo. In the near future, --cloud-provider for kubelet will either be an empty string or external. (#51312, @andrewsykim)
  • Add local ephemeral storage support to Quota (#49610, @NickrenREN)
  • Kubelet updates default labels if those are deprecated (#47044, @mrIncompetent)
  • Add error count and time-taken metrics for storage operations such as mount and attach, per-volume-plugin. (#50036, @wongma7)
  • A new predicates, named 'CheckNodeCondition', was added to replace node condition filter. 'NetworkUnavailable', 'OutOfDisk' and 'NotReady' maybe reported as a reason when failed to schedule pods. (#51117, @k82cn)
  • Add support for configurable groups for bootstrap token authentication. (#50933, @mattmoyer)
  • Fix forbidden message format (#49006, @CaoShuFeng)
  • make volumesInUse sorted in node status updates (#49849, @dixudx)
  • Adds InstanceExists and InstanceExistsByProviderID to cloud provider interface for the cloud controller manager (#51087, @prydie)
  • Dynamic Flexvolume plugin discovery. Flexvolume plugins can now be discovered on the fly rather than only at system initialization time. (#50031, @verult)
  • add fieldSelector spec.schedulerName (#50582, @dixudx)
  • Change eviction manager to manage one single local ephemeral storage resource (#50889, @NickrenREN)
  • Cloud Controller Manager now sets Node.Spec.ProviderID (#50730, @andrewsykim)
  • Paramaterize session affinity timeout seconds in service API for Client IP based session affinity. (#49850, @m1093782566)
  • Changing scheduling part of the alpha feature 'LocalStorageCapacityIsolation' to manage one single local ephemeral storage resource (#50819, @NickrenREN)
  • set --audit-log-format default to json (#50971, @CaoShuFeng)
  • kubeadm: Implement a --dry-run mode and flag for kubeadm (#51122, @luxas)
  • kubectl rollout history, status, and undo subcommands now support StatefulSets. (#49674, @crimsonfaith91)
  • Add IPBlock to Network Policy (#50033, @cmluciano)
  • Adding Italian translation for kubectl (#50155, @lucab85)
  • Simplify capabilities handling in FlexVolume. (#51169, @MikaelCluseau)
  • NONE (#50669, @jiulongzaitian)
  • cloudprovider.Zones should support external cloud providers (#50858, @andrewsykim)
  • Finalizers are now honored on custom resources, and on other resources even when garbage collection is disabled via the apiserver flag --enable-garbage-collector=false (#51148, @ironcladlou)
  • Renamed the API server flag --experimental-bootstrap-token-auth to --enable-bootstrap-token-auth. The old value is accepted with a warning in 1.8 and will be removed in 1.9. (#51198, @mattmoyer)
  • Azure file persistent volumes can use a new secretNamespace field to reference a secret in a different namespace than the one containing their bound persistent volume claim. The azure file persistent volume provisioner honors a corresponding secretNamespace storage class parameter to determine where to place secrets containing the storage account key. (#47660, @rootfs)
  • Bumped gRPC version to 1.3.0 (#51154, @RenaudWasTaken)
  • Delete load balancers if the UIDs for services don't match. (#50539, @brendandburns)
  • Show events when describing service accounts (#51035, @mrogers950)
  • implement proposal 34058: hostPath volume type (#46597, @dixudx)
  • HostAlias is now supported for both non-HostNetwork Pods and HostNetwork Pods. (#50646, @rickypai)
  • CRDs support metadata.generation and implement spec/status split (#50764, @nikhita)
  • Allow attach of volumes to multiple nodes for vSphere (#51066, @BaluDontu)

v1.7.6

Documentation & Examples

Downloads for v1.7.6

filename sha256 hash
kubernetes.tar.gz 6d2462aed79097845129e05375fdf16b724c32d47579d30a9b563a8d360d3ae3
kubernetes-src.tar.gz ee66724a04900f4b90bc6eccbd6487095d888a90cf7cfdc0f5b5e9425ae95e47

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz fc5ee8d608cc551693839ac79c1330b7a688930a8f16b0d313128844d598e4d3
kubernetes-client-darwin-amd64.tar.gz 0e9dad45f6dd4ef06d9aef7151ba02612300ddebf7fb4b7e64174408590e340e
kubernetes-client-linux-386.tar.gz 74fc57544bd2b109fb620f0f8f1e821a66e83082700a49cfc38e5b2c1d7221a6
kubernetes-client-linux-amd64.tar.gz 0d46a9c297d193bc193487aa1734141be764a0078759748ec800f92bd183de5f
kubernetes-client-linux-arm64.tar.gz ef9dbbd93e4ad02e02297466b631e779f5fd96f2a449a5f628b239068e615a22
kubernetes-client-linux-arm.tar.gz 25637797aed9d4904e8209d5085ade93df12a9fbcf6c09499e3a20cba6876122
kubernetes-client-linux-ppc64le.tar.gz 9a9cc9e747fd56330c87b68508c9cb6cedbe988a7682e70f6410a0d1c6bc9256
kubernetes-client-linux-s390x.tar.gz 8cdaaf06618b5e936ad90bdae608ea0e9f352b91197002031b3802fbdeda6aa3
kubernetes-client-windows-386.tar.gz e1e74224d151d0317eba54ac02bdac21e86416af475b27a068e9f72749b10481
kubernetes-client-windows-amd64.tar.gz 37d9a7c0fbf3ff1e47d51a986f939c4f257bf265916c5f1b2e809b8161f48953

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 302c3c48f9c2def14fd4503f5caf3c66e8abefd478e735ec7a270b3ba313f93c
kubernetes-server-linux-arm64.tar.gz 04a28285cc98e57dee3d41987adb4e08e049b9c0d493ed3ae1b7017c2d4aaa66
kubernetes-server-linux-arm.tar.gz caf808442d09784dea5b18d89a39cbfe318257bd5efa03ab81b4393a5aa3e370
kubernetes-server-linux-ppc64le.tar.gz b156c17df4a4c2badd1c7e580652ffe6d816c1134ebb22e1ca1fa7ef1b8326df
kubernetes-server-linux-s390x.tar.gz 1a4fedd1ec94429b5ea8ef894b04940e248f872fab272f28fddff5951e4ee571

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 8d798ef84c933c9aa4ba144277ebe571879b2237239827565327be2c97726bbc
kubernetes-node-linux-arm64.tar.gz ca0976faf03812a415da6a0dc244a65222a3f8d81b3da929530988a36ce0dc1a
kubernetes-node-linux-arm.tar.gz 92fd22d0bb51d32e24490a0ec12c48e28b5c5a19826c10f5e9061d06620ca12f
kubernetes-node-linux-ppc64le.tar.gz 1b39b2a89a5522a9f1d23b90a51070a13bede72a66c3b6b217289fa4fadbc0d6
kubernetes-node-linux-s390x.tar.gz fda8c1ed4ebd406a6c19d0a982ba6705f0533e6c1db96e2bd121392deb4018ed
kubernetes-node-windows-amd64.tar.gz 325caebf0f5d9dc79259f9609014e80385753d3ad1fff7fb276b19d2f272ef3b

Changelog since v1.7.5

Other notable changes

  • [fluentd-gcp addon] Fluentd will trim lines exceeding 100KB instead of dropping them. (#52289, @crassirostris)
  • Cluster Autoscaler 0.6.2 (#52359, @mwielgus)
  • Add --request-timeout to kube-apiserver to make global request timeout configurable. (#51415, @jpbetz)
  • Fix credentials providers for docker sandbox image. (#51870, @feiskyer)
  • Fix security holes in GCE metadata proxy. (#51302, @ihmccreery)
  • Fixed an issue looking up cronjobs when they existed in more than one API version (#52227, @liggitt)
  • Fixes an issue with upgrade requests made via pod/service/node proxy subresources sending a non-absolute HTTP request-uri to backends (#52065, @liggitt)
  • Fix a kube-controller-manager crash which can result when --concurrent-resource-quota-syncs is >1 and pods exist in the system containing certain alpha/beta annotation keys. (#52092, @ironcladlou)
  • Make logdump support kubemark and support gke with 'use_custom_instance_list' (#51834, @shyamjvs)
  • Fixes an issue with APIService auto-registration affecting rolling HA apiserver restarts that add or remove API groups being served. (#51921, @liggitt)
  • In GCE with COS, increase TasksMax for Docker service to raise cap on number of threads/processes used by containers. (#51986, @yujuhong)
  • Fix providerID update validation (#51761, @karataliu)
  • Automated cherry pick of #50381 to release-1.7 (#51871, @feiskyer)
  • The emptyDir.sizeLimit field is now correctly omitted from API requests and responses when unset. (#50163, @jingxu97)
  • Calico has been updated to v2.5, RBAC added, and is now automatically scaled when GCE clusters are resized. (#51237, @gunjan5)

v1.8.0-beta.1

Documentation & Examples

Downloads for v1.8.0-beta.1

filename sha256 hash
kubernetes.tar.gz 261e5ad47a718bcbb65c163f8e1130097e2d077541d6a68f3270de4e7256d796
kubernetes-src.tar.gz e414e75cd1c72ca1fd202f6f0042ba1884b87bc6809bc2493ea2654c3d965656

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz b7745121e8d7074170f1ce8ded0fbc78b84abe8f8371933e97b76ba5551f26d8
kubernetes-client-darwin-amd64.tar.gz 4cc45a3a5dbd2ca666ea6dc2a973a17929c1427f5c3296224eade50d8df10b9e
kubernetes-client-linux-386.tar.gz a1dce30675b33e2c18a1343ee15556c9c65e85ee3c2b88f3cac414d95514a902
kubernetes-client-linux-amd64.tar.gz 7fa5bbdc4af80a7ce00c5939896e8e93e962a66d195a95878f1e1fe4a06a5272
kubernetes-client-linux-arm64.tar.gz 7d54528f892d3247e22093861c48407e7dc001304bb168cf8c882227d96fd6b2
kubernetes-client-linux-arm.tar.gz 17c074ae407b012b4bb2c88975c182df0317fefea98700fdadee12c70d114498
kubernetes-client-linux-ppc64le.tar.gz 074801a87eedd2e93bdeb894822a70aa371983aafce86f66ed473a1a3bf4628b
kubernetes-client-linux-s390x.tar.gz 2eb743f160b970a183b3ec81fc50108df2352b8a0c31951babb26e2c28fc8360
kubernetes-client-windows-386.tar.gz 21e5686253052773d7e4baa08fd4ce56c861ad01d49d87df0eb80f56801e7cc4
kubernetes-client-windows-amd64.tar.gz 07d2446c917cf749b38fa2bcaa2bd64af743df2ba19ad4b480c07be166f9ab16

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 811eb1645f8691e5cf7f75ae8ab26e90cf0b36a69254f73c0ed4ba91f4c0db99
kubernetes-server-linux-arm64.tar.gz e05c53ce80354d2776aa6832e074730aa35521f64ebf03a6c5a7753e7f2df8a3
kubernetes-server-linux-arm.tar.gz 57bc90e040faefa6af23b8637e8221a06282041ec9a16c2a630cc655d3c170df
kubernetes-server-linux-ppc64le.tar.gz 4feb30aef4f79954907fdec34d4b7d2985917abd8e35b34a9440a468889cb240
kubernetes-server-linux-s390x.tar.gz 85c0aaff6e832f711fb572582f10d9fe172c4d0680ac7589d1ec6e54742c436c

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 5809dce1c13d05c7c85bddc4d31804b30c55fe70209c9d89b137598c25db863e
kubernetes-node-linux-arm64.tar.gz d70c9d99f4b155b755728029036f68d79cff1648cfd3de257e3f2ce29bc07a31
kubernetes-node-linux-arm.tar.gz efa29832aea28817466e25b55375574f314848c806d76fa0e4874f835399e9f0
kubernetes-node-linux-ppc64le.tar.gz 991507d4cd2014e776d63ae7a14b3bbbbf49597211d4fa1751701f21fbf44417
kubernetes-node-linux-s390x.tar.gz 4e1bd8e4465b2761632093a1235b788cc649af74d42dec297a97de8a0f764e46
kubernetes-node-windows-amd64.tar.gz 4f80d4c269c6f05fb30c8c682f1cdbe46f3f0e86ac7ca4b84a1ab0a835bfb24a

Changelog since v1.8.0-alpha.3

Action Required

  • The OwnerReferencesPermissionEnforcement admission plugin now requires update permission on the finalizers subresource of the referenced owner in order to set blockOwnerDeletion on an owner reference. (#49133, @deads2k)
  • The deprecated alpha and beta initContainer annotations are no longer supported. Init containers must be specified using the initContainers field in the pod spec. (#51816, @liggitt)
  • Action required: validation rule on metadata.initializers.pending.name is tightened. The initializer name needs to contain at least three segments separated by dots. If you create objects with pending initializers, (i.e., not relying on apiserver adding pending initializers according to initializerconfiguration), you need to update the initializer name in existing objects and in configuration files to comply to the new validation rule. (#51283, @caesarxuchao)
  • Audit policy supports matching subresources and resource names, but the top level resource no longer matches the subresouce. For example "pods" no longer matches requests to the logs subresource of pods. Use "pods/logs" to match subresources. (#48836, @ericchiang)
  • Protobuf serialization does not distinguish between [] and null. (#45294, @liggitt)
    • API fields previously capable of storing and returning either [] and null via JSON API requests (for example, the Endpoints subsets field) can now store only null when created using the protobuf content-type or stored in etcd using protobuf serialization (the default in 1.6+). JSON API clients should tolerate null values for such fields, and treat null and [] as equivalent in meaning unless specifically documented otherwise for a particular field.

Other notable changes

  • Fixes an issue with upgrade requests made via pod/service/node proxy subresources sending a non-absolute HTTP request-uri to backends (#52065, @liggitt)
  • kubeadm: add kubeadm phase addons command (#51171, @andrewrynhard)
  • v2 of the autoscaling API group, including improvements to the HorizontalPodAutoscaler, has moved from alpha1 to beta1. (#50708, @DirectXMan12)
  • Fixed a bug where some alpha features were enabled by default. (#51839, @jennybuckley)
  • Implement StatsProvider interface using CRI stats (#51557, @yguo0905)
  • set AdvancedAuditing feature gate to true by default (#51943, @CaoShuFeng)
  • Migrate the metrics/v1alpha1 API to metrics/v1beta1. The HorizontalPodAutoscaler (#51653, @DirectXMan12)
    • controller REST client now uses that version. For v1beta1, the API is now known as
    • resource-metrics.metrics.k8s.io.
  • In GCE with COS, increase TasksMax for Docker service to raise cap on number of threads/processes used by containers. (#51986, @yujuhong)
  • Fixes an issue with APIService auto-registration affecting rolling HA apiserver restarts that add or remove API groups being served. (#51921, @liggitt)
  • Sharing a PID namespace between containers in a pod is disabled by default in 1.8. To enable for a node, use the --docker-disable-shared-pid=false kubelet flag. Note that PID namespace sharing requires docker >= 1.13.1. (#51634, @verb)
  • Build test targets for all server platforms (#51873, @luxas)
  • Add EgressRule to NetworkPolicy (#51351, @cmluciano)
  • Allow DNS resolution of service name for COS using containerized mounter. It fixed the issue with DNS resolution of NFS and Gluster services. (#51645, @jingxu97)
  • Fix journalctl leak on kubelet restart (#51751, @dashpole)
    • Fix container memory rss
    • Add hugepages monitoring support
    • Fix incorrect CPU usage metrics with 4.7 kernel
    • Add tmpfs monitoring support
  • Support for Huge pages in empty_dir volume plugin (#50072, @squall0gd)
    • Huge pages can now be used with empty dir volume plugin.
  • Alpha support for pre-allocated hugepages (#50859, @derekwaynecarr)
  • add support for client-side spam filtering of events (#47367, @derekwaynecarr)
  • Provide a way to omit Event stages in audit policy (#49280, @CaoShuFeng)
  • Introduced Metrics Server (#51792, @piosz)
  • Implement Controller for growing persistent volumes (#49727, @gnufied)
  • Kubernetes 1.8 supports docker version 1.11.x, 1.12.x and 1.13.x. And also supports overlay2. (#51845, @Random-Liu)
  • The Deployment, DaemonSet, and ReplicaSet kinds in the extensions/v1beta1 group version are now deprecated, as are the Deployment, StatefulSet, and ControllerRevision kinds in apps/v1beta1. As they will not be removed until after a GA version becomes available, you may continue to use these kinds in existing code. However, all new code should be developed against the apps/v1beta2 group version. (#51828, @kow3ns)
  • kubeadm: Detect kubelet readiness and error out if the kubelet is unhealthy (#51369, @luxas)
  • Fix providerID update validation (#51761, @karataliu)
  • Calico has been updated to v2.5, RBAC added, and is now automatically scaled when GCE clusters are resized. (#51237, @gunjan5)
  • Add backoff policy and failed pod limit for a job (#51153, @clamoriniere1A)
  • Adds a new alpha EventRateLimit admission control that is used to limit the number of event queries that are accepted by the API Server. (#50925, @staebler)
  • The OpenID Connect authenticator can now use a custom prefix, or omit the default prefix, for username and groups claims through the --oidc-username-prefix and --oidc-groups-prefix flags. For example, the authenticator can map a user with the username "jane" to "google:jane" by supplying the "google:" username prefix. (#50875, @ericchiang)
  • Implemented kubeadm upgrade plan for checking whether you can upgrade your cluster to a newer version (#48899, @luxas)
    • Implemented kubeadm upgrade apply for upgrading your cluster from one version to an other
  • Switch to audit.k8s.io/v1beta1 in audit. (#51719, @soltysh)
  • update QEMU version to v2.9.1 (#50597, @dixudx)
  • controllers backoff better in face of quota denial (#49142, @joelsmith)
  • The event table output under kubectl describe has been simplified to show only the most essential info. (#51748, @smarterclayton)
  • Use arm32v7|arm64v8 images instead of the deprecated armhf|aarch64 image organizations (#50602, @dixudx)
  • audit newest impersonated user info in the ResponseStarted, ResponseComplete audit stage (#48184, @CaoShuFeng)
  • Fixed bug in AWS provider to handle multiple IPs when using more than 1 network interface per ec2 instance. (#50112, @jlz27)
  • Add flag "--include-uninitialized" to kubectl annotate, apply, edit-last-applied, delete, describe, edit, get, label, set. "--include-uninitialized=true" makes kubectl commands apply to uninitialized objects, which by default are ignored if the names of the objects are not provided. "--all" also makes kubectl commands apply to uninitialized objects. Please see the initializer doc for more details. (#50497, @dixudx)
  • GCE: Service object now supports "Network Tiers" as an Alpha feature via annotations. (#51301, @yujuhong)
  • When using kube-up.sh on GCE, user could set env ENABLE_POD_PRIORITY=true to enable pod priority feature gate. (#51069, @MrHohn)
  • The names generated for ControllerRevision and ReplicaSet are consistent with the GenerateName functionality of the API Server and will not contain "bad words". (#51538, @kow3ns)
  • PersistentVolumeClaim metrics like "volume_stats_inodes" and "volume_stats_capacity_bytes" are now reported via kubelet prometheus (#51553, @wongma7)
  • When using IP aliases, use a secondary range rather than subnetwork to reserve cluster IPs. (#51690, @bowei)
  • IPAM controller unifies handling of node pod CIDR range allocation. (#51374, @bowei)
    • It is intended to supersede the logic that is currently in range_allocator
    • and cloud_cidr_allocator. (ALPHA FEATURE)
    • Note: for this change, the other allocators still exist and are the default.
    • It supports two modes:
      • CIDR range allocations done within the cluster that are then propagated out to the cloud provider.
      • Cloud provider managed IPAM that is then reflected into the cluster.
  • Alpha list paging implementation (#48921, @smarterclayton)
  • add reconcile command to kubectl auth (#51636, @deads2k)
  • Advanced audit allows logging failed login attempts (#51119, @soltysh)
  • kubeadm: Add support for using an external CA whose key is never stored in the cluster (#50832, @nckturner)
  • the custom metrics API (custom.metrics.k8s.io) has moved from v1alpha1 to v1beta1 (#50920, @DirectXMan12)
  • Add backoff policy and failed pod limit for a job (#48075, @clamoriniere1A)
  • Performs validation (when applying for example) against OpenAPI schema rather than Swagger 1.0. (#51364, @apelisse)
  • Make all e2e tests lookup image to use from a centralized place. In that centralized place, add support for multiple platforms. (#49457, @mkumatag)
  • kubelet has alpha support for mount propagation. It is disabled by default and it is there for testing only. This feature may be redesigned or even removed in a future release. (#46444, @jsafrane)
  • Add selfsubjectrulesreview API for allowing users to query which permissions they have in a given namespace. (#48051, @xilabao)
  • Kubelet re-binds /var/lib/kubelet directory with rshared mount propagation during startup if it is not shared yet. (#45724, @jsafrane)
  • Deviceplugin jiayingz (#51209, @jiayingz)
  • Make logdump support kubemark and support gke with 'use_custom_instance_list' (#51834, @shyamjvs)
  • add apps/v1beta2 conversion test (#49645, @dixudx)
  • Fixed an issue (#47800) where kubectl logs -f failed with unexpected stream type "". (#50381, @sczizzo)
  • GCE: Internal load balancer IPs are now reserved during service sync to prevent losing the address to another service. (#51055, @nicksardo)
  • Switch JSON marshal/unmarshal to json-iterator library. Performance should be close to previous with no generated code. (#48287, @thockin)
  • Adds optional group and version information to the discovery interface, so that if an endpoint uses non-default values, the proper value of "kind" can be determined. Scale is a common example. (#49971, @deads2k)
  • #43077 introduced a condition where DaemonSet controller did not respect the TerminationGracePeriodSeconds of the Pods it created. This is now corrected. (#51279, @kow3ns)
  • Add a persistent volume label controller to the cloud-controller-manager (#44680, @rrati)
  • Tainted nodes by conditions as following: (#49257, @k82cn) * 'node.kubernetes.io/network-unavailable=:NoSchedule' if NetworkUnavailable is true * 'node.kubernetes.io/disk-pressure=:NoSchedule' if DiskPressure is true * 'node.kubernetes.io/memory-pressure=:NoSchedule' if MemoryPressure is true * 'node.kubernetes.io/out-of-disk=:NoSchedule' if OutOfDisk is true
  • rbd: default image format to v2 instead of deprecated v1 (#51574, @dillaman)
  • Surface reasonable error when client detects connection closed. (#51381, @mengqiy)
  • Allow PSP's to specify a whitelist of allowed paths for host volume (#50212, @jhorwit2)
  • For Deployment, ReplicaSet, and DaemonSet, selectors are now immutable when updating via the new apps/v1beta2 API. For backward compatibility, selectors can still be changed when updating via apps/v1beta1 or extensions/v1beta1. (#50719, @crimsonfaith91)
  • Allows kubectl to use http caching mechanism for the OpenAPI schema. The cache directory can be configured through --cache-dir command line flag to kubectl. If set to empty string, caching will be disabled. (#50404, @apelisse)
  • Pod log attempts are now reported in apiserver prometheus metrics with verb CONNECT since they can run for very long periods of time. (#50123, @WIZARD-CXY)
  • The emptyDir.sizeLimit field is now correctly omitted from API requests and responses when unset. (#50163, @jingxu97)
  • Promote CronJobs to batch/v1beta1. (#51465, @soltysh)
  • Add local ephemeral storage support to LimitRange (#50757, @NickrenREN)
  • Add mount options field to StorageClass. The options listed there are automatically added to PVs provisioned using the class. (#51228, @wongma7)
  • Implement IPVS-based in-cluster service load balancing (#46580, @dujun1990)
  • Release the kubelet client certificate rotation as beta. (#51045, @jcbsmpsn)
  • Adds --append-hash flag to kubectl create configmap/secret, which will append a short hash of the configmap/secret contents to the name during creation. (#49961, @mtaufen)
  • Add validation for CustomResources via JSON Schema. (#47263, @nikhita)
  • enqueue a sync task to wake up jobcontroller to check job ActiveDeadlineSeconds in time (#48454, @weiwei04)
  • Remove previous local ephemeral storage resource names: "ResourceStorageOverlay" and "ResourceStorageScratch" (#51425, @NickrenREN)
  • Add retainKeys to patchStrategy for v1 Volumes and extentions/v1beta1 DeploymentStrategy. (#50296, @mengqiy)
  • Add mount options field to PersistentVolume spec (#50919, @wongma7)
  • Use of the alpha initializers feature now requires enabling the Initializers feature gate. This feature gate is auto-enabled if the Initialzers admission plugin is enabled. (#51436, @liggitt)
  • Fix inconsistent Prometheus cAdvisor metrics (#51473, @bboreham)
  • Add local ephemeral storage to downward API (#50435, @NickrenREN)
  • kubectl zsh autocompletion will work with compinit (#50561, @cblecker)
  • When using kube-up.sh on GCE, user could set env KUBE_PROXY_DAEMONSET=true to run kube-proxy as a DaemonSet. kube-proxy is run as static pods by default. (#50705, @MrHohn)
  • Add --request-timeout to kube-apiserver to make global request timeout configurable. (#51415, @jpbetz)
  • Deprecate auto detecting cloud providers in kubelet. Auto detecting cloud providers go against the initiative for out-of-tree cloud providers as we'll now depend on cAdvisor integrations with cloud providers instead of the core repo. In the near future, --cloud-provider for kubelet will either be an empty string or external. (#51312, @andrewsykim)
  • Add local ephemeral storage support to Quota (#49610, @NickrenREN)
  • Kubelet updates default labels if those are deprecated (#47044, @mrIncompetent)
  • Add error count and time-taken metrics for storage operations such as mount and attach, per-volume-plugin. (#50036, @wongma7)
  • A new predicates, named 'CheckNodeCondition', was added to replace node condition filter. 'NetworkUnavailable', 'OutOfDisk' and 'NotReady' maybe reported as a reason when failed to schedule pods. (#51117, @k82cn)
  • Add support for configurable groups for bootstrap token authentication. (#50933, @mattmoyer)
  • Fix forbidden message format (#49006, @CaoShuFeng)
  • make volumesInUse sorted in node status updates (#49849, @dixudx)
  • Adds InstanceExists and InstanceExistsByProviderID to cloud provider interface for the cloud controller manager (#51087, @prydie)
  • Dynamic Flexvolume plugin discovery. Flexvolume plugins can now be discovered on the fly rather than only at system initialization time. (#50031, @verult)
  • add fieldSelector spec.schedulerName (#50582, @dixudx)
  • Change eviction manager to manage one single local ephemeral storage resource (#50889, @NickrenREN)
  • Cloud Controller Manager now sets Node.Spec.ProviderID (#50730, @andrewsykim)
  • Paramaterize session affinity timeout seconds in service API for Client IP based session affinity. (#49850, @m1093782566)
  • Changing scheduling part of the alpha feature 'LocalStorageCapacityIsolation' to manage one single local ephemeral storage resource (#50819, @NickrenREN)
  • set --audit-log-format default to json (#50971, @CaoShuFeng)
  • kubeadm: Implement a --dry-run mode and flag for kubeadm (#51122, @luxas)
  • kubectl rollout history, status, and undo subcommands now support StatefulSets. (#49674, @crimsonfaith91)
  • Add IPBlock to Network Policy (#50033, @cmluciano)
  • Adding Italian translation for kubectl (#50155, @lucab85)
  • Simplify capabilities handling in FlexVolume. (#51169, @MikaelCluseau)
  • cloudprovider.Zones should support external cloud providers (#50858, @andrewsykim)
  • Finalizers are now honored on custom resources, and on other resources even when garbage collection is disabled via the apiserver flag --enable-garbage-collector=false (#51148, @ironcladlou)
  • Renamed the API server flag --experimental-bootstrap-token-auth to --enable-bootstrap-token-auth. The old value is accepted with a warning in 1.8 and will be removed in 1.9. (#51198, @mattmoyer)
  • Azure file persistent volumes can use a new secretNamespace field to reference a secret in a different namespace than the one containing their bound persistent volume claim. The azure file persistent volume provisioner honors a corresponding secretNamespace storage class parameter to determine where to place secrets containing the storage account key. (#47660, @rootfs)
  • Bumped gRPC version to 1.3.0 (#51154, @RenaudWasTaken)
  • Delete load balancers if the UIDs for services don't match. (#50539, @brendandburns)
  • Show events when describing service accounts (#51035, @mrogers950)
  • implement proposal 34058: hostPath volume type (#46597, @dixudx)
  • HostAlias is now supported for both non-HostNetwork Pods and HostNetwork Pods. (#50646, @rickypai)
  • CRDs support metadata.generation and implement spec/status split (#50764, @nikhita)
  • Allow attach of volumes to multiple nodes for vSphere (#51066, @BaluDontu)

v1.7.5

Documentation & Examples

Downloads for v1.7.5

filename sha256 hash
kubernetes.tar.gz bc96c1ec02da6a82f90bc04064d2c4d6463a4d9dd37e5882a23f8c74bdf1b20b
kubernetes-src.tar.gz e06ebc6b73b6b38aeb55891b9e5c0bbd26e755e05674d70866cdc41f749f62a5

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 2c1c40c161e5ccae6df0dc5846a9a8bd55ebcd5b55012e09c01ec00bc81f4a81
kubernetes-client-darwin-amd64.tar.gz 6e749df53f9b4f5e2c1a94c360e06e9d4c4c0bf34c0dd2a02476d476e8da3f68
kubernetes-client-linux-386.tar.gz d0edb7229ec27c4354589a1045766d8e12605be5c2ab82cef3e30d324ba66095
kubernetes-client-linux-amd64.tar.gz e246dc357be1ccaad1c5f79d4696abdc31a90bd8eae642e5bacd1e7d820517ad
kubernetes-client-linux-arm64.tar.gz bf94c70e00cb3c451a3b024e64fd5933098850fe3414e8b72d42244cbd478a2e
kubernetes-client-linux-arm.tar.gz 17d4af2b552377ee580230c0f0ea0de8469e682c01cd0ebde8f50c52cd02bed3
kubernetes-client-linux-ppc64le.tar.gz bfa32c4b1d70474dd5fccd588bd4e836c6d330b1d6d04de3ceeb3acc4f65a21b
kubernetes-client-linux-s390x.tar.gz c2a3822d358b24c909b8965a25ac759f510bab3f60b6117cf522dccabc724cb0
kubernetes-client-windows-386.tar.gz b70b3de5a33eb7762aa371b1b7e426a0cafc1d468bb33dff2db20997d244bd37
kubernetes-client-windows-amd64.tar.gz 7f995b5a4f9338b9aa62508ac71ccd615f0ef577841d603f9e9ea6683be688b0

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 7482c12dae75fb195f2f3afa92f62c354cafb97bee5703c4fdaa617d27c7cf68
kubernetes-server-linux-arm64.tar.gz 0be475479062f113fcc41d91215c21409c6e4c000e96ffc0246e4597b6737a29
kubernetes-server-linux-arm.tar.gz 07527fbe49a2f12eae25ccd49e8a95deae7f5a8c8bae2014e5dc2561e4a04fdb
kubernetes-server-linux-ppc64le.tar.gz fed7ee43ba5db918d277e26da9ca556254fa365445d51cb33a3e304d1e3841e9
kubernetes-server-linux-s390x.tar.gz 47b548cc2c6e224c49fe286da3db61c0cf1905239df2869b88b9b8607edbbd73

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz f5dd62f21d2cc516768b55d191bc20fc20901b9fa2e1165eef2adcca4821e23d
kubernetes-node-linux-arm64.tar.gz 8ee0d5f417651f2ce9ab5e504bbd47fbfe0f15d6e3923a1356b2def4f1012b66
kubernetes-node-linux-arm.tar.gz 40882a5c505fee370eb69e890b8974d3bb9c896307795d81bf7dff52797e4eeb
kubernetes-node-linux-ppc64le.tar.gz 597bd33af9f03874fabc0778de3df057f13364630d590cc4443e4c858ffbe7f3
kubernetes-node-linux-s390x.tar.gz dd57a82a5d71d03a97cebf901bf9cc5273b935218f4fc1c3f1471b93842a4414
kubernetes-node-windows-amd64.tar.gz d95511742d26c375b5a705b85b498b200c8e081fec365c4b60df18def49d151c

Changelog since v1.7.4

Other notable changes

  • Bumped Heapster version to 1.4.2 - more details https://github.com/kubernetes/heapster/releases/tag/v1.4.2. (#51620, @piosz)
  • Fix for Pod stuck in ContainerCreating with error "Volume is not yet attached according to node". (#50806, @verult)
  • Fixed controller manager crash by making it tolerant to discovery errors.(#49767, @deads2k)
  • Finalizers are now honored on custom resources, and on other resources even when garbage collection is disabled via the apiserver flag --enable-garbage-collector=false (#51469, @ironcladlou)
  • Allow attach of volumes to multiple nodes for vSphere (#51066, @BaluDontu)
  • vSphere: Fix attach volume failing on the first try. (#51217, @BaluDontu)
  • azure: support retrieving access tokens via managed identity extension (#48854, @colemickens)
  • Fixed a bug in strategic merge patch that caused kubectl apply to error out under some conditions (#50862, @guoshimin)
  • It is now posible to use flexVolumes to bind mount directories and files. (#50596, @adelton)
  • StatefulSet: Fix "forbidden pod updates" error on Pods created prior to upgrading to 1.7. (#48327) (#51149, @kow3ns)
  • Fixed regression in initial kubectl exec terminal dimensions (#51127, @chen-anders)
  • Enforcement of fsGroup; enable ScaleIO multiple-instance volume mapping; default PVC capacity; alignment of PVC, PV, and volume names for dynamic provisioning (#48999, @vladimirvivien)

v1.8.0-alpha.3

Documentation & Examples

Downloads for v1.8.0-alpha.3

filename sha256 hash
kubernetes.tar.gz c99042c4826352b724dc02c8d92c01c49e1ad1663d2c55e0bce931fe4d76c1e3
kubernetes-src.tar.gz 3ee0cd3594bd5b326f042044d87e120fe335bd8e722635220dd5741485ab3493

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz c716e167383d118373d7b10425bb8db6033675e4520591017c688575f28a596d
kubernetes-client-darwin-amd64.tar.gz dfe87cad00600049c841c8fd96c49088d4f7cdd34e5a903ef8048f75718f2d21
kubernetes-client-linux-386.tar.gz 97242dffee822cbf4e3e373acf05e9dc2f40176b18f4532a60264ecf92738356
kubernetes-client-linux-amd64.tar.gz 42e25e810333b00434217bae0aece145f82d0c7043faea83ff62bed079bae651
kubernetes-client-linux-arm64.tar.gz 7f9683c90dc894ee8cd7ad30ec58d0d49068d35478a71b315d2b7805ec28e14a
kubernetes-client-linux-arm.tar.gz 76347a154128e97cdd81674045b28035d89d509b35dda051f2cbc58c9b67fed4
kubernetes-client-linux-ppc64le.tar.gz c991cbbf0afa6eccd005b6e5ea28b0b20ecbc79ab7d64e32c24e03fcf05b48ff
kubernetes-client-linux-s390x.tar.gz 94c2c29e8fd20d2a5c4f96098bd5c7d879a78e872f59c3c58ca1c775a57ddefb
kubernetes-client-windows-386.tar.gz bc98fd5dc01c6e6117c2c78d65884190bf99fd1fec0904e2af05e6dbf503ccc8
kubernetes-client-windows-amd64.tar.gz e32b56dbc69045b5b2821a2e3eb3c3b4a18cf4c11afd44e0c7c9c0e67bb38d02

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 5446addff583b0dc977b91375f3c399242f7996e1f66f52b9e14c015add3bf13
kubernetes-server-linux-arm64.tar.gz 91e3cffed119b5105f6a6f74f583113384a26c746b459029c12babf45f680119
kubernetes-server-linux-arm.tar.gz d4cb93787651193ef4fdd1d10a4822101586b2994d6b0e04d064687df8729910
kubernetes-server-linux-ppc64le.tar.gz 916e7f63a4e0c67d9f106fdda6eb24efcc94356b05cd9eb288e45fac9ff79fe8
kubernetes-server-linux-s390x.tar.gz 15b999b08f5fe0d8252f8a1c7e936b9e06f2b01132010b3cece547ab00b45282

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 9120f6a06053ed91566d378a26ae455f521ab46911f257d64f629d93d143b369
kubernetes-node-linux-arm64.tar.gz 30af817f5de0ecb8a95ec898fba5b97e6b4f224927e1cf7efaf2d5479b23c116
kubernetes-node-linux-arm.tar.gz 8b0913e461d8ac821c2104a1f0b4efe3151f0d8e8598e0945e60b4ba7ac2d1a0
kubernetes-node-linux-ppc64le.tar.gz a78a3a837c0fbf6e092b312472c89ef0f3872c268b0a5e1e344e725a88c0717d
kubernetes-node-linux-s390x.tar.gz a0a38c5830fc1b7996c5befc24502991fc8a095f82cf81ddd0a301163143a2c5
kubernetes-node-windows-amd64.tar.gz 8af4253fe2c582843de329d12d84dbdc5f9f823f68ee08a42809864efc7c368d

Changelog since v1.8.0-alpha.2

Action Required

  • Remove deprecated kubectl command aliases apiversions, clusterinfo, resize, rollingupdate, run-container, update (#49935, @xiangpengzhao)
  • The following deprecated flags have been removed from kube-controller-manager: replication-controller-lookup-cache-size, replicaset-lookup-cache-size, and daemonset-lookup-cache-size. Make sure you no longer attempt to set them. (#50678, @xiangpengzhao)
  • Beta annotations service.beta.kubernetes.io/external-traffic and service.beta.kubernetes.io/healthcheck-nodeport have been removed. Please use fields service.spec.externalTrafficPolicy and service.spec.healthCheckNodePort instead. (#50224, @xiangpengzhao)
  • A cluster using the AWS cloud provider will need to label existing nodes and resources with a ClusterID or the kube-controller-manager will not start. To run without a ClusterID pass --allow-untagged-cloud=true to the kube-controller-manager on startup. (#49215, @rrati)
  • RBAC: the system:node role is no longer automatically granted to the system:nodes group in new clusters. It is recommended that nodes be authorized using the Node authorization mode instead. Installations that wish to continue giving all members of the system:nodes group the system:node role (which grants broad read access, including all secrets and configmaps) must create an installation-specific ClusterRoleBinding. (#49638, @liggitt)
  • StatefulSet: The deprecated pod.alpha.kubernetes.io/initialized annotation for interrupting StatefulSet Pod management is now ignored. If you were setting it to true or leaving it unset, no action is required. However, if you were setting it to false, be aware that previously-dormant StatefulSets may become active after upgrading. (#49251, @enisoc)
  • add some more deprecation warnings to cluster (#49148, @mikedanese)
  • The --insecure-allow-any-token flag has been removed from kube-apiserver. Users of the flag should use impersonation headers instead for debugging. (#49045, @ericchiang)
  • Restored cAdvisor prometheus metrics to the main port -- a regression that existed in v1.7.0-v1.7.2 (#49079, @smarterclayton)
    • cAdvisor metrics can now be scraped from /metrics/cadvisor on the kubelet ports.
    • Note that you have to update your scraping jobs to get kubelet-only metrics from /metrics and container_* metrics from /metrics/cadvisor
  • Change the default kubeadm bootstrap token TTL from infinite to 24 hours. This is a breaking change. If you require the old behavior, use kubeadm init --token-ttl 0 / kubeadm token create --ttl 0. (#48783, @mattmoyer)

Other notable changes

  • Remove duplicate command example from kubectl port-forward --help (#50229, @tcharding)
  • Adds a new kubeadm config command that lets users tell kubeadm upgrade what kubeadm configuration to use and lets users view the current state. (#50980, @luxas)
  • Kubectl uses openapi for validation. If OpenAPI is not available on the server, it defaults back to the old Swagger. (#50546, @apelisse)
  • kubectl show node role if defined (#50438, @dixudx)
  • iSCSI volume plugin: iSCSI initiatorname support (#48789, @mtanino)
  • On AttachDetachController node status update, do not retry when node doesn't exist but keep the node entry in cache. (#50806, @verult)
  • Prevent unneeded endpoint updates (#50934, @joelsmith)
  • Affinity in annotations alpha feature is no longer supported in 1.8. Anyone upgrading from 1.7 with AffinityInAnnotation feature enabled must ensure pods (specifically with pod anti-affinity PreferredDuringSchedulingIgnoredDuringExecution) with empty TopologyKey fields must be removed before upgrading to 1.8. (#49976, @aveshagarwal)
    • kubeadm now supports "ci/latest-1.8" or "ci-cross/latest-1.8" and similar labels. (#49119, @kad)
  • kubeadm: Adds dry-run support for kubeadm using the --dry-run option (#50631, @luxas)
  • Change GCE installs (kube-up.sh) to use GCI/COS for node OS, by default. (#46512, @thockin)
  • Use CollisionCount for collision avoidance when creating ControllerRevisions in StatefulSet controller (#50490, @liyinan926)
  • AWS: Arbitrarily choose first (lexicographically) subnet in AZ (#50255, @mattlandis)
  • Change CollisionCount from int64 to int32 across controllers (#50575, @dixudx)
  • fix GPU resource validation that incorrectly allows zero limits (#50218, @dixudx)
  • The kubernetes.io/created-by annotation is now deprecated and will be removed in v1.9. Use ControllerRef instead to determine which controller, if any, owns an object. (#50536, @crimsonfaith91)
  • Disable Docker's health check until we officially support it (#50796, @yguo0905)
  • Add ControllerRevision to apps/v1beta2 (#50698, @liyinan926)
  • StorageClass has a new field to configure reclaim policy of dynamically provisioned PVs. (#47987, @wongma7)
  • Rerun init containers when the pod needs to be restarted (#47599, @yujuhong)
  • Resources outside the *kubernetes.io namespace are integers and cannot be over-committed. (#48922, @ConnorDoyle)
  • apps/v1beta2 is enabled by default. DaemonSet, Deployment, ReplicaSet, and StatefulSet have been moved to this group version. (#50643, @kow3ns)
  • TLS cert storage for self-hosted clusters is now configurable. You can store them as secrets (alpha) or as usual host mounts. (#50762, @jamiehannaford)
  • Remove deprecated command 'kubectl stop' (#46927, @shiywang)
  • Add new Prometheus metric that monitors the remaining lifetime of certificates used to authenticate requests to the API server. (#50387, @jcbsmpsn)
  • Upgrade advanced audit to version v1beta1 (#49115, @CaoShuFeng)
  • Cluster Autoscaler - fixes issues with taints and updates kube-proxy cpu request. (#50514, @mwielgus)
  • fluentd-elasticsearch addon: change the fluentd base image to fix crashes on systems with non-standard systemd installation (#50679, @aknuds1)
  • advanced audit: shutdown batching audit webhook gracefully (#50577, @crassirostris)
  • Add Priority admission controller for monitoring and resolving PriorityClasses. (#49322, @bsalamat)
  • apiservers: add synchronous shutdown mechanism on SIGTERM+INT (#50439, @sttts)
  • Fix kubernetes-worker charm hook failure when applying labels (#50633, @Cynerva)
  • kubeadm: Implementing the controlplane phase (#50302, @fabriziopandini)
  • Refactor addons into multiple packages (#50214, @andrewrynhard)
  • Kubelet now manages /etc/hosts file for both hostNetwork Pods and non-hostNetwork Pods. (#49140, @rickypai)
  • After 1.8, admission controller will add 'MemoryPressure' toleration to Guaranteed and Burstable pods. (#50180, @k82cn)
  • A new predicates, named 'CheckNodeCondition', was added to replace node condition filter. 'NetworkUnavailable', 'OutOfDisk' and 'NotReady' maybe reported as a reason when failed to schedule pods. (#50362, @k82cn)
  • fix apps DeploymentSpec conversion issue (#49719, @dixudx)
  • fluentd-gcp addon: Fix a bug in the event-exporter, when repeated events were not sent to Stackdriver. (#50511, @crassirostris)
  • not allowing "kubectl edit " when you got an empty list (#50205, @dixudx)
  • fixes kubefed's ability to create RBAC roles in version-skewed clusters (#50537, @liggitt)
  • API server authentication now caches successful bearer token authentication results for a few seconds. (#50258, @liggitt)
  • Added field CollisionCount to StatefulSetStatus in both apps/v1beta1 and apps/v1beta2 (#49983, @liyinan926)
  • FC volume plugin: Support WWID for volume identifier (#48741, @mtanino)
  • kubeadm: added enhanced TLS validation for token-based discovery in kubeadm join using a new --discovery-token-ca-cert-hash flag. (#49520, @mattmoyer)
  • federation: Support for leader-election among federation controller-manager instances introduced. (#46090, @shashidharatd)
  • New get-kube.sh option: KUBERNETES_SKIP_RELEASE_VALIDATION (#50391, @pipejakob)
  • Azure: Allow VNet to be in a separate Resource Group. (#49725, @sylr)
  • fix bug when azure cloud provider configuration file is not specified (#49283, @dixudx)
  • The rbac.authorization.k8s.io/v1beta1 API has been promoted to rbac.authorization.k8s.io/v1 with no changes. (#49642, @liggitt)
    • The rbac.authorization.k8s.io/v1alpha1 version is deprecated and will be removed in a future release.
  • Fix an issue where if a CSR is not approved initially by the SAR approver is not retried. (#49788, @mikedanese)
  • The v1.Service.PublishNotReadyAddresses field is added to notify DNS addons to publish the notReadyAddresses of Enpdoints. The "service.alpha.kubernetes.io/tolerate-unready-endpoints" annotation has been deprecated and will be removed when clients have sufficient time to consume the field. (#49061, @kow3ns)
  • vSphere cloud provider: vSphere cloud provider code refactoring (#49164, @BaluDontu)
  • cluster/gke has been removed. GKE end-to-end testing should be done using kubetest --deployment=gke (#50338, @zmerlynn)
  • kubeadm: Upload configuration used at 'kubeadm init' time to ConfigMap for easier upgrades (#50320, @luxas)
  • Adds (alpha feature) the ability to dynamically configure Kubelets by enabling the DynamicKubeletConfig feature gate, posting a ConfigMap to the API server, and setting the spec.configSource field on Node objects. See the proposal at https://github.com/kubernetes/community/blob/master/contributors/design-proposals/node/dynamic-kubelet-configuration.md for details. (#46254, @mtaufen)
  • Remove deprecated ScheduledJobs endpoints, use CronJobs instead. (#49930, @soltysh)
  • [Federation] Make the hpa scale time window configurable (#49583, @irfanurrehman)
  • fuse daemons for GlusterFS and CephFS are now run in their own systemd scope when Kubernetes runs on a system with systemd. (#49640, @jsafrane)
  • kubectl proxy will now correctly handle the exec, attach, and portforward commands. You must pass --disable-filter to the command in order to allow these endpoints. (#49534, @smarterclayton)
  • Copy annotations from a StatefulSet's metadata to the ControllerRevisions it owns (#50263, @liyinan926)
  • Make rolling update the default update strategy for v1beta2.DaemonSet and v1beta2.StatefulSet (#50175, @foxish)
  • Deprecate Deployment .spec.rollbackTo field (#49340, @janetkuo)
  • Collect metrics from Heapster in Stackdriver mode. (#50290, @piosz)
  • N/A (#50179, @k82cn)
  • [Federation] HPA controller (#45993, @irfanurrehman)
  • Relax restrictions on environment variable names. (#48986, @timoreimann)
  • The node condition 'NodeInodePressure' was removed, as kubelet did not report it. (#50124, @k82cn)
  • Fix premature return (#49834, @guoshimin)
  • StatefulSet uses scale subresource when scaling in accord with ReplicationController, ReplicaSet, and Deployment implementations. (#49168, @crimsonfaith91)
  • Feature gates now determine whether a cluster is self-hosted. For more information, see the FeatureGates configuration flag. (#50241, @jamiehannaford)
  • Updates Cinder AttachDisk operation to be more reliable by delegating Detaches to volume manager. (#50042, @jingxu97)
  • add fieldSelector podIP (#50091, @dixudx)
  • Return Audit-Id http response header for trouble shooting (#49377, @CaoShuFeng)
  • Status objects for 404 API errors will have the correct APIVersion (#49868, @shiywang)
  • Fix incorrect retry logic in scheduler (#50106, @julia-stripe)
  • Enforce explicit references to API group client interfaces in clientsets to avoid ambiguity. (#49370, @sttts)
  • update dashboard image version (#49855, @zouyee)
  • kubeadm: Implementing the kubeconfig phase fully (#49419, @fabriziopandini)
  • fixes a bug around using the Global config ElbSecurityGroup where Kuberentes would modify the passed in Security Group. (#49805, @nbutton23)
  • Fluentd DaemonSet in the fluentd-elasticsearch addon is configured via ConfigMap and includes journald plugin (#50082, @crassirostris)
    • Elasticsearch StatefulSet in the fluentd-elasticsearch addon uses local storage instead of PVC by default
  • Add possibility to use multiple floatingip pools in openstack loadbalancer (#49697, @zetaab)
  • The 504 timeout error was returning a JSON error body that indicated it was a 500. The body contents now correctly report a 500 error. (#49678, @smarterclayton)
  • add examples for kubectl run --labels (#49862, @dixudx)
  • Kubelet will by default fail with swap enabled from now on. The experimental flag "--experimental-fail-swap-on" has been deprecated, please set the new "--fail-swap-on" flag to false if you wish to run with /proc/swaps on. (#47181, @dims)
  • Fix bug in scheduler that caused initially unschedulable pods to stuck in Pending state forever. (#50028, @julia-stripe)
  • GCE: Bump GLBC version to 0.9.6 (#50096, @nicksardo)
  • Remove 0,1,3 from rand.String, to avoid 'bad words' (#50070, @dixudx)
  • Fix data race during addition of new CRD (#50098, @nikhita)
  • Do not try to run preStopHook when the gracePeriod is 0 (#49449, @dhilipkumars)
  • The SubjectAccessReview API in the authorization.k8s.io API group now allows providing the user uid. (#49677, @dims)
  • Increase default value of apps/v1beta2 DeploymentSpec.RevisionHistoryLimit to 10 (#49924, @dixudx)
  • Upgrade Elasticsearch/Kibana to 5.5.1 in fluentd-elasticsearch addon (#48722, @aknuds1) * Switch to basing our image of Elasticsearch in fluentd-elasticsearch addon off the official one * Switch to the official image of Kibana in fluentd-elasticsearch addon * Use StatefulSet for Elasticsearch instead of ReplicationController, with persistent volume claims * Require authenticating towards Elasticsearch, as Elasticsearch 5.5 by default requires basic authentication
  • Rebase hyperkube image on debian-hyperkube-base, based on debian-base. (#48365, @ixdy)
  • change apps/v1beta2 StatefulSet observedGeneration (optional field) from a pointer to an int for consistency (#49607, @dixudx)
  • After a kubelet rotates its client cert, it now closes its connections to the API server to force a handshake using the new cert. Previously, the kubelet could keep its existing connection open, even if the cert used for that connection was expired and rejected by the API server. (#49899, @ericchiang)
  • Improve our Instance Metadata coverage in Azure. (#49237, @brendandburns)
  • Add etcd connectivity endpoint to healthz (#49412, @bjhaid)
  • kube-proxy will emit "FailedToStartNodeHealthcheck" event when fails to start healthz server. (#49267, @MrHohn)
  • Fixed a bug in the API server watch cache, which could cause a missing watch event immediately after cache initialization. (#49992, @liggitt)
  • Enforcement of fsGroup; enable ScaleIO multiple-instance volume mapping; default PVC capacity; alignment of PVC, PV, and volume names for dynamic provisioning (#48999, @vladimirvivien)
  • In GCE, add measures to prevent corruption of known_tokens.csv. (#49897, @mikedanese)
  • kubeadm: Fix join preflight check false negative (#49825, @erhudy)
  • route_controller will emit "FailedToCreateRoute" event when fails to create route. (#49821, @MrHohn)
  • Fix incorrect parsing of io_priority in Portworx volume StorageClass and add support for new paramters. (#49526, @harsh-px)
  • The API Server now automatically creates RBAC ClusterRoles for CSR approving. (#49284, @luxas)
    • Each deployment method should bind users/groups to the ClusterRoles if they are using this feature.
  • Adds AllowPrivilegeEscalation to control whether a process can gain more privileges than its parent process (#47019, @jessfraz)
  • hack/local-up-cluster.sh now enables the Node authorizer by default. Authorization modes can be overridden with the AUTHORIZATION_MODE environment variable, and the ENABLE_RBAC environment variable is no longer used. (#49812, @liggitt)
  • rename stop.go file to delete.go to avoid confusion (#49533, @dixudx)
  • Adding option to set the federation api server port if nodeport is set (#46283, @ktsakalozos)
  • The garbage collector now supports custom APIs added via CustomResourceDefinition or aggregated apiservers. Note that the garbage collector controller refreshes periodically, so there is a latency between when the API is added and when the garbage collector starts to manage it. (#47665, @ironcladlou)
  • set the juju master charm state to blocked if the services appear to be failing (#49717, @wwwtyro)
  • keep-terminated-pod-volumes flag on kubelet is deprecated. (#47539, @gnufied)
  • kubectl describe podsecuritypolicy describes all fields. (#45813, @xilabao)
  • Added flag support to kubectl plugins (#47267, @fabianofranz)
  • Adding metrics support to local volume (#49598, @sbezverk)
  • Bug fix: Parsing of --requestheader-group-headers in requests should be case-insensitive. (#49219, @jmillikin-stripe)
  • Fix instance metadata service URL. (#49081, @brendandburns)
  • Add a new API object apps/v1beta2.ReplicaSet (#49238, @janetkuo)
  • fix pdb validation bug on PodDisruptionBudgetSpec (#48706, @dixudx)
  • Revert deprecation of vCenter port in vSphere Cloud Provider. (#49689, @divyenpatel)
  • Rev version of Calico's Typha daemon used in add-on to v0.2.3 to pull in bug-fixes. (#48469, @fasaxc)
  • set default adminid for rbd deleter if unset (#49271, @dixudx)
  • Adding type apps/v1beta2.DaemonSet (#49071, @foxish)
  • Fix nil value issue when creating json patch for merge (#49259, @dixudx)
  • Adds metrics for checking reflector health. (#48224, @deads2k)
  • remove deads2k from volume reviewer (#49566, @deads2k)
  • Unify genclient tags and add more fine control on verbs generated (#49192, @mfojtik)
  • kubeadm: Fixes a small bug where --config and --skip-* flags couldn't be passed at the same time in validation. (#49498, @luxas)
  • Remove depreciated flags: --low-diskspace-threshold-mb and --outofdisk-transition-frequency, which are replaced by --eviction-hard (#48846, @dashpole)
  • Fixed OpenAPI Description and Nickname of API objects with subresources (#49357, @mbohlool)
  • set RBD default values as constant vars (#49274, @dixudx)
  • Fix a bug with binding mount directories and files using flexVolumes (#49118, @adelton)
  • PodPreset is not injected if conflict occurs while applying PodPresets to a Pod. (#47864, @droot)
  • kubectl drain no longer spins trying to delete pods that do not exist (#49444, @eparis)
  • Support specifying of FSType in StorageClass (#45345, @codablock)
  • The NodeRestriction admission plugin now allows a node to evict pods bound to itself (#48707, @danielfm)
  • more robust stat handling from ceph df output in the kubernetes-master charm create-rbd-pv action (#49394, @wwwtyro)
  • added cronjobs.batch to all, so kubectl get all returns them. (#49326, @deads2k)
  • Update status to show failing services. (#49296, @ktsakalozos)
  • Fixes #49418 where kube-controller-manager can panic on volume.CanSupport methods and enter a crash loop. (#49420, @gnufied)
  • Add a new API version apps/v1beta2 (#48746, @janetkuo)
  • Websocket requests to aggregated APIs now perform TLS verification using the service DNS name instead of the backend server's IP address, consistent with non-websocket requests. (#49353, @liggitt)
  • kubeadm: Don't set a specific spc_t SELinux label on the etcd Static Pod as that is more privs than etcd needs and due to that spc_t isn't compatible with some OSes. (#49328, @euank)
  • GCE Cloud Provider: New created LoadBalancer type Service will have health checks for nodes by default if all nodes have version >= v1.7.2. (#49330, @MrHohn)
  • hack/local-up-cluster.sh now enables RBAC authorization by default (#49323, @mtanino)
  • Use port 20256 for node-problem-detector in standalone mode. (#49316, @ajitak)
  • Fixed unmounting of vSphere volumes when kubelet runs in a container. (#49111, @jsafrane)
  • use informers for quota evaluation of core resources where possible (#49230, @deads2k)
  • additional backoff in azure cloudprovider (#48967, @jackfrancis)
  • allow impersonate serviceaccount in cli (#48253, @CaoShuFeng)
  • Add PriorityClass API object under new "scheduling" API group (#48377, @bsalamat)
  • Added golint check for pkg/kubelet. (#47316, @k82cn)
  • azure: acr: support MSI with preview ACR with AAD auth (#48981, @colemickens)
  • Set default CIDR to /16 for Juju deployments (#49182, @ktsakalozos)
  • Fix pod preset to ignore input pod namespace in favor of request namespace (#49120, @jpeeler)
  • Previously a deleted bootstrapping token secret would be considered valid until it was reaped. Now it is invalid as soon as the deletionTimestamp is set. (#49057, @ericchiang)
  • Set default snap channel on charms to 1.7 stable (#48874, @ktsakalozos)
  • prevent unsetting of nonexistent previous port in kubeapi-load-balancer charm (#49033, @wwwtyro)
  • kubeadm: Make kube-proxy tolerate the external cloud provider taint so that an external cloud provider can be easily used on top of kubeadm (#49017, @luxas)
  • Fix Pods using Portworx volumes getting stuck in ContainerCreating phase. (#48898, @harsh-px)
  • hpa: Prevent scaling below MinReplicas if desiredReplicas is zero (#48997, @johanneswuerbach)
  • Kubelet CRI: move seccomp from annotations to security context. (#46332, @feiskyer)
  • Never prevent deletion of resources as part of namespace lifecycle (#48733, @liggitt)
  • The generic RESTClient type (k8s.io/client-go/rest) no longer exposes LabelSelectorParam or FieldSelectorParam methods - use VersionedParams with metav1.ListOptions instead. The UintParam method has been removed. The timeout parameter will no longer cause an error when using Param(). (#48991, @smarterclayton)
  • Support completion for kubectl config delete-cluster (#48381, @superbrothers)
  • Could get the patch from kubectl edit command (#46091, @xilabao)
  • Added scheduler integration test owners. (#46930, @k82cn)
  • kubectl run learned how to set a service account name in the generated pod spec with the --serviceaccount flag. (#46318, @liggitt)
  • Fix share name generation in azure file provisioner. (#48326, @karataliu)
  • Fixed a bug where a jsonpath filter would return an error if one of the items being evaluated did not contain all of the nested elements in the filter query. (#47846, @ncdc)
  • Uses the port config option in the kubeapi-load-balancer charm. (#48958, @wwwtyro)
  • azure: support retrieving access tokens via managed identity extension (#48854, @colemickens)
  • Add a runtime warning about the kubeadm default token TTL changes. (#48838, @mattmoyer)
  • Azure PD (Managed/Blob) (#46360, @khenidak)
  • Redirect all examples README to the the kubernetes/examples repo (#46362, @sebgoa)
  • Fix a regression that broke the --config flag for kubeadm init. (#48915, @mattmoyer)
  • Fluentd-gcp DaemonSet exposes different set of metrics. (#48812, @crassirostris)
  • MountPath should be absolute (#48815, @dixudx)
  • Updated comments of func in testapi. (#48407, @k82cn)
  • Fix service controller crash loop when Service with GCP LoadBalancer uses static IP (#48848, @nicksardo) (#48849, @nicksardo)
  • Fix pods failing to start when subPath is a dangling symlink from kubelet point of view, which can happen if it is running inside a container (#48555, @redbaron)
  • Add initial support for the Azure instance metadata service. (#48243, @brendandburns)
  • Added new flag to kubeadm init: --node-name, that lets you specify the name of the Node object that will be created (#48594, @GheRivero)
  • Added pod evictors for new zone. (#47952, @k82cn)
  • kube-up and kubemark will default to using cos (GCI) images for nodes. (#48279, @abgworrall)
    • The previous default was container-vm (CVM, "debian"), which is deprecated.
    • If you need to explicitly use container-vm for some reason, you should set
    • KUBE_NODE_OS_DISTRIBUTION=debian
  • kubectl: Fix bug that showed terminated/evicted pods even without --show-all. (#48786, @janetkuo)
  • Fixed GlusterFS volumes taking too long to time out (#48709, @jsafrane)

v1.7.4

Documentation & Examples

Downloads for v1.7.4

filename sha256 hash
kubernetes.tar.gz dfc4521a81cdcb6a644757247f7b5311ed371d767053e0b28ac1c6a58a890bd2
kubernetes-src.tar.gz d9e0e091b202c2ca155d31ed88b616a4cb759bc14d84b637271b55d6b0774bd1

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz e87bb880f89766c0642eadfca387d91b82845da4c26eb4b213665b82d9060641
kubernetes-client-darwin-amd64.tar.gz a913d8f2578449e926c822a5e96b3c7185fd0c97589d45f4f9224940f3f2e4c9
kubernetes-client-linux-386.tar.gz 03ed586c6c2c1e5fbdf3e75627b2d981b5e54fe1f4090a23759e34f1cfe6e7d0
kubernetes-client-linux-amd64.tar.gz 19eef604019d4562e9b1107ad8d1d3886512ba240a9eb82f8d6b4332b2cd5e7d
kubernetes-client-linux-arm64.tar.gz 9c60f289d55674b3af26bc219b4478aa2d46f6cbf7743493c14ad49099a17794
kubernetes-client-linux-arm.tar.gz 6fb2260f8a5ac18b5f16cfcf34579c675ee2222b54508d0abd36624acb24f314
kubernetes-client-linux-ppc64le.tar.gz e5fe4b73cbd4e5662e77b1ca72e959f692fde39459bd1e9711814d877dabf137
kubernetes-client-linux-s390x.tar.gz 2ed3545580731b838f732cc0b8f805e0aa03478bf2913fd3ae3230042edea2c3
kubernetes-client-windows-386.tar.gz 5b1c79aea5e5174e0d135a15dd3a33cdbdb2c465f08af1878c5fc38aaf28ba7b
kubernetes-client-windows-amd64.tar.gz 07ca92b2f7659ecc8f5c93a707767fe6de099c20d5a81451f652968a326ec063

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 09c420fdb9b912c172b19638d67b27bc7994e2608185051f412804fa55790076
kubernetes-server-linux-arm64.tar.gz 49d0a383fced290223b3727011904283e16183f0356f7d952f587eef9dbef4a8
kubernetes-server-linux-arm.tar.gz 74442000ff61b10b12f783594cb15b6a1db3dd0d879fe8c0863e8b5ec7de7de4
kubernetes-server-linux-ppc64le.tar.gz 809cf588ca15ab57ca4570aa7939fb08b7dc7e038a0475098f9f4ba5ced9e4c7
kubernetes-server-linux-s390x.tar.gz 33961f57ece65872976065614055b41a0bb3237152bb86ae40b9fa6a0089ab2f

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 59e0643c46f9ad5b401b9bb8aa067d1263f0b22f06f16008b5c7518ee905324e
kubernetes-node-linux-arm64.tar.gz 216523d47ec6b451308708eda53ef5fe05f59c3c1c912955094be798dfe8f7bb
kubernetes-node-linux-arm.tar.gz 13ccad18701f67930991128c39efecea3ba873e21cecc81d79a5563c11f16ad2
kubernetes-node-linux-ppc64le.tar.gz a6b644f842e84b3dc6059fae19dffe4da1d3dbc8e6464f264664169634f89a02
kubernetes-node-linux-s390x.tar.gz b753f1bf1b26a62bc26def4b6b49dacdd16389d2d57ca2c384f449727daacc1d
kubernetes-node-windows-amd64.tar.gz 1fabda88ff9cbfcae406707c8584efc75600b2484317a0f22d56a0c44ca32184

Changelog since v1.7.3

Other notable changes

  • Azure: Allow VNet to be in a separate Resource Group. (#49725, @sylr)
  • Fix an issue where if a CSR is not approved initially by the SAR approver is not retried. (#49788, @mikedanese)
  • Cluster Autoscaler - fixes issues with taints and updates kube-proxy cpu request. (#50514, @mwielgus)
  • Bumped Heapster version to 1.4.1: (#50642, @piosz)
      • handle gracefully problem when kubelet reports duplicated stats for the same container (see #47853) on Heapster side
      • fixed bugs and improved performance in Stackdriver Sink
  • fluentd-gcp addon: Fix a bug in the event-exporter, when repeated events were not sent to Stackdriver. (#50511, @crassirostris)
  • Collect metrics from Heapster in Stackdriver mode. (#50517, @piosz)
  • fixes a bug around using the Global config ElbSecurityGroup where Kuberentes would modify the passed in Security Group. (#49805, @nbutton23)
  • Updates Cinder AttachDisk operation to be more reliable by delegating Detaches to volume manager. (#50042, @jingxu97)
  • fixes kubefed's ability to create RBAC roles in version-skewed clusters (#50537, @liggitt)
  • Fix data race during addition of new CRD (#50098, @nikhita)
  • Fix bug in scheduler that caused initially unschedulable pods to stuck in Pending state forever. (#50028, @julia-stripe)
  • Fix incorrect retry logic in scheduler (#50106, @julia-stripe)
  • GCE: Bump GLBC version to 0.9.6 (#50096, @nicksardo)
  • The NodeRestriction admission plugin now allows a node to evict pods bound to itself (#48707, @danielfm)
  • Fixed a bug in the API server watch cache, which could cause a missing watch event immediately after cache initialization. (#49992, @liggitt)

v1.7.3

Documentation & Examples

Downloads for v1.7.3

filename sha256 hash
kubernetes.tar.gz 8afa3919b6bff47ada1c298837881ef7eed9516694d54517ac2a59b0bbe7308c
kubernetes-src.tar.gz 54f77cb2d392de742580fc5fb9ca5acf29adfb4620f4dcb09050d7dfbbd260d7

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 9a62ebc7b25847ce3201e01df6a845139e1de6ea4e9cc02ef4c713d33c5a9916
kubernetes-client-darwin-amd64.tar.gz b786b39e89908ed567a17dac6e554cf5580f0ad817334ad2bd447a8f8b5bde95
kubernetes-client-linux-386.tar.gz aed5d3ccaf9fafb52775234d27168674f9b536ce72cb56e51376761f2f77c653
kubernetes-client-linux-amd64.tar.gz 8d66c7912914ac9add514e660fdc8c963b748a7c588c43a14533157a9f0e1c92
kubernetes-client-linux-arm64.tar.gz 7b65dd3d72712e419679685dfe6324274b080415eb556a2dca95bcb61cbf8882
kubernetes-client-linux-arm.tar.gz 42843f265bcf56a801942cee378f235b94eea1b8ac431315a9db0fb7d78736ad
kubernetes-client-linux-ppc64le.tar.gz c2976c26f9f4842f59cf0d5e8a79913f688b57843b825bfdd300ca4d8b4e7f1f
kubernetes-client-linux-s390x.tar.gz 7f019b5a32e927422136be0672e0dd97bcf496e7c25935a3e3d68474c2bd543d
kubernetes-client-windows-386.tar.gz 2d4d26928f31342081337bc9b8508067b3a29c9f673a6f67186e04c447d274c1
kubernetes-client-windows-amd64.tar.gz 90423aaa71fdd813ac58ceb25e670bd8b53a417e6ac34e67ad2cacc7f5a4c579

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz f4ae8d6655eedc1bed14c6d7da74156cb1f43a01a554f6399a177e3acb385bf1
kubernetes-server-linux-arm64.tar.gz 4a2ab8183f944f7e952b929008a4f39297897b7d411b233e7f952a8a755eb65c
kubernetes-server-linux-arm.tar.gz fde4d9f8a2e360d8cabfa7d56ed1b2ec25a09ce1ab8db3d2e5e673f098586488
kubernetes-server-linux-ppc64le.tar.gz 7d012b8393c06bd2418b1173fb306879e6fd11437f874b92bffcdba5ef4fb14a
kubernetes-server-linux-s390x.tar.gz 364b2c768bca178844de0752b5c0e4d3ee37cfc98ca4b8deac71e71aded84d5a

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 29b7a0649f0fed7f4e892d4c5ecbe7dfc57d3631e29c90dfafd305b19e324e57
kubernetes-node-linux-arm64.tar.gz 6c8f2d8651bddd625e336a16546b923cd18a8a8f01df6d236db46b914b9edbe0
kubernetes-node-linux-arm.tar.gz 1ad3c378ad56f7233b4e75cdb3fb1ba52cde1f7695a536b2ccbefc614f56208f
kubernetes-node-linux-ppc64le.tar.gz 32860144cf02a62b29bd2a8fcaa155ccf3f004352e363d398ff1eccf90ebaae7
kubernetes-node-linux-s390x.tar.gz eb34c895267d91324841abc0cc17788def37bfee297f3067cbee6f088f6c6b39
kubernetes-node-windows-amd64.tar.gz de2efc1cf0979bade8db64c342bbcec021d5dd271b2e5232c9d282104afb4368

Changelog since v1.7.2

Other notable changes

  • fix pdb validation bug on PodDisruptionBudgetSpec (#48706, @dixudx)
  • kubeadm: Fix join preflight check false negative (#49825, @erhudy)
  • Revert deprecation of vCenter port in vSphere Cloud Provider. (#49689, @divyenpatel)
  • Fluentd-gcp DaemonSet exposes different set of metrics. (#48812, @crassirostris)
  • Fixed OpenAPI Description and Nickname of API objects with subresources (#49357, @mbohlool)
  • Websocket requests to aggregated APIs now perform TLS verification using the service DNS name instead of the backend server's IP address, consistent with non-websocket requests. (#49353, @liggitt)
  • kubeadm: Fixes a small bug where --config and --skip-* flags couldn't be passed at the same time in validation. (#49498, @luxas)
  • kubeadm: Don't set a specific spc_t SELinux label on the etcd Static Pod as that is more privs than etcd needs and due to that spc_t isn't compatible with some OSes. (#49328, @euank)
  • Websocket requests to aggregated APIs now perform TLS verification using the service DNS name instead of the backend server's IP address, consistent with non-websocket requests. (#49353, @liggitt)
  • kubectl drain no longer spins trying to delete pods that do not exist (#49444, @eparis)
  • Fixes #49418 where kube-controller-manager can panic on volume.CanSupport methods and enter a crash loop. (#49420, @gnufied)
  • Fix Cinder to support http status 300 in pagination (#47602, @rootfs)
  • Automated cherry pick of #49079 upstream release 1.7 (#49254, @feiskyer)
  • Fixed GlusterFS volumes taking too long to time out (#48709, @jsafrane)
  • The IP address and port for kube-proxy metrics server is now configurable via flag --metrics-bind-address (#48625, @mrhohn)
    • Special notice for kube-proxy in 1.7+ (including 1.7.0):
      • Healthz server (/healthz) will be served on 0.0.0.0:10256 by default.
      • Metrics server (/metrics and /proxyMode) will be served on 127.0.0.1:10249 by default.
      • Metrics server will continue serving /healthz.

v1.7.2

Documentation & Examples

Downloads for v1.7.2

filename sha256 hash
kubernetes.tar.gz 35281f3552ec4bdf0c219bb7d25b22033648a81e3726594d25500418653eb2f0
kubernetes-src.tar.gz 450ab45c9d69b12ca9d658247ace8fc67fa02a658fbb474f2a7deae85ebff223

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 9fc3629c9eee02008cda0a1045d8a80d6c4ede057e989bdb9c187630c8977438
kubernetes-client-darwin-amd64.tar.gz c163afbf8effd3f1ae041fbcf147f49c478656665158503ddabfb8f64f764bdc
kubernetes-client-linux-386.tar.gz 8ec8a0f40a8c7726b2610a30dd4bfa2aef736147a9771234651c1e005e832519
kubernetes-client-linux-amd64.tar.gz 9c2363710d61a12a28df2d8a4688543b785156369973d33144ab1f2c1d5c7b53
kubernetes-client-linux-arm64.tar.gz 320e89b12fd59863ad64bb49f0a208aba98064f5ead0fe43945f7c5b3fc260e9
kubernetes-client-linux-arm.tar.gz 08566e8f7d200d4d23c59947a66b2737122bffd897e8079f056b76d39156167c
kubernetes-client-linux-ppc64le.tar.gz 681842ae5f8364be1a0dcdb0703958e450ec9c46eb7bf875a86bc3d6b21a9bb0
kubernetes-client-linux-s390x.tar.gz a779720a07fa22bdaf0e28d93e6a946f479ce408ec25644a3b45aeb03cd04cc8
kubernetes-client-windows-386.tar.gz 3fe1e082176e09aba62b6414f5fb4ea8d43880ab04766535ae68e6500c868764
kubernetes-client-windows-amd64.tar.gz 1ddbdc59bd97b044b63a46da175a5e5298b8947cc49511e3b378d0298736c66d

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz b281a1b0ff2f0f38e88642d492e184aa087a985baf54bcaae588948e675d96a3
kubernetes-server-linux-arm64.tar.gz 2b87266d43f7e38e8d7328b923ee75adba0fc64a2299851a8e915b9321f66e3d
kubernetes-server-linux-arm.tar.gz 3f00de82ba4d623fbec8f05fc9b249435671a2f6f976654ea5f1f839dca1f804
kubernetes-server-linux-ppc64le.tar.gz 4b70ff24a6bf9c3d9f58c51fe60a279ac3ce8d996708a4bf58295fa740168b27
kubernetes-server-linux-s390x.tar.gz 83da55f793bbd040f7282cb155ce219bf1039195f53762098633c44a6971b759

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz ecee3f66f62ff87a1718ee7279b720f411fba1b4439255664364e3c5968207b5
kubernetes-node-linux-arm64.tar.gz d03252370caa631afd5710e5d40ff35b1e0764bc19a911f3e3f6c9c300b2e354
kubernetes-node-linux-arm.tar.gz e1885e36ca699c7ed75a2212d7e8be4482c544ea80e0a229b32703e3efd16ddc
kubernetes-node-linux-ppc64le.tar.gz 6a3fdc63c1fbcd66440dba4f8252a26959cb42ac92298d12c447c7f3d8d7cc29
kubernetes-node-linux-s390x.tar.gz 8b2eabb3cee1b990c75835a80ce3429d2a2a7bae7e90916f64efda131da70eaa
kubernetes-node-windows-amd64.tar.gz 8f563627db05d6f12a2034bb01961b012dcadcec17d3bc399d05b6837340d3b3

Changelog since v1.7.1

Other notable changes

  • Use port 20256 for node-problem-detector in standalone mode. (#49316, @ajitak)
  • GCE Cloud Provider: New created LoadBalancer type Service will have health checks for nodes by default if all nodes have version >= v1.7.2. (#49330, @MrHohn)
  • Azure PD (Managed/Blob) (#46360, @khenidak)
  • Fix Pods using Portworx volumes getting stuck in ContainerCreating phase. (#48898, @harsh-px)
  • kubeadm: Make kube-proxy tolerate the external cloud provider taint so that an external cloud provider can be easily used on top of kubeadm (#49017, @luxas)
  • Fix pods failing to start when subPath is a dangling symlink from kubelet point of view, which can happen if it is running inside a container (#48555, @redbaron)
  • Never prevent deletion of resources as part of namespace lifecycle (#48733, @liggitt)
  • kubectl: Fix bug that showed terminated/evicted pods even without --show-all. (#48786, @janetkuo)
  • Add a runtime warning about the kubeadm default token TTL changes. (#48838, @mattmoyer)
  • Local storage teardown fix (#48402, @ianchakeres)
  • Fix udp service blackhole problem when number of backends changes from 0 to non-0 (#48524, @freehan)
  • hpa: Prevent scaling below MinReplicas if desiredReplicas is zero (#48997, @johanneswuerbach)
  • kubeadm: Fix a bug where kubeadm join would wait 5 seconds without doing anything. Now kubeadm join executes the tasks immediately. (#48737, @mattmoyer)
  • Fix a regression that broke the --config flag for kubeadm init. (#48915, @mattmoyer)
  • Fix service controller crash loop when Service with GCP LoadBalancer uses static IP (#48848, @nicksardo) (#48849, @nicksardo)

v1.7.1

Documentation & Examples

Downloads for v1.7.1

filename sha256 hash
kubernetes.tar.gz 76bddfd19a50f92136456af5bbc3a9d4239260c0c40dccfe704156286a93127c
kubernetes-src.tar.gz 159100f6506c4d59d640a3b0fc7691c4a5023b346d7c3911c5cbbedce2ad8184

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 340ceb858bff489fa7ae15c6b526c4316d9c7b6ca354f68ff187c8b5eff08f45
kubernetes-client-darwin-amd64.tar.gz 1f1db50d57750115abd6e6e060c914292af7a6e2933a48ccf28ebbe8942c7826
kubernetes-client-linux-386.tar.gz 5eac1c92aee40cd2ef14248639d39d7cee910f077dd006a868c510116852fbba
kubernetes-client-linux-amd64.tar.gz 6b807520a69b8432baaa89304e8d1ff286d07af20e2a3712b8b2e38d61dbb445
kubernetes-client-linux-arm64.tar.gz a91e0ea4381f659f60380b5b9d6f8114e13337f90a32bcb4a72b8168caef2e00
kubernetes-client-linux-arm.tar.gz 6e0e2e557d4e3df18e967e6025a36205aae5b8979dcbb33df6d6e44d9224809a
kubernetes-client-linux-ppc64le.tar.gz 22264e96ceaa2d853120be7dcbdc70a9938915cd10eaf5a2c75f4fb2dd12a2eb
kubernetes-client-linux-s390x.tar.gz 9b5ac9a66df99a2a8abdc908ef3cd933010facf4c08e96597e041fc359a62aa9
kubernetes-client-windows-386.tar.gz bd3f99ead21f6c6c34dba7ef5c2d2308ef6770bcb255f286d9d5edbf33f5ccff
kubernetes-client-windows-amd64.tar.gz e2578ca743bf03b367c473c32657cbed4cf27a12545841058f8bb873fb70e872

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 467201c89d473bdec82a67c9b24453a2037eef1a1ed552f0dc55310355d21ea3
kubernetes-server-linux-arm64.tar.gz 1c1c5cad62423655b1e79bc831de5765cbe683aeef4efe9a823d2597334e19c1
kubernetes-server-linux-arm.tar.gz 17eee900df8ac9bbdd047b2f7d7cb2684820f71cb700dcb305e986acbddf66eb
kubernetes-server-linux-ppc64le.tar.gz b1ae5f6d728cfe61b38acbc081e66ddf77ecc38ebdfdb42bfdd53e51fcd3aa2b
kubernetes-server-linux-s390x.tar.gz 20a273b20b10233fc2632d8a65e0b123fc87166e1f50171e7ede76c59f3118cd

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz da0e6d5d6532ef7dba6e5db59e5bc142a52a0314bbb2c70e1fa8e73fe07d0e31
kubernetes-node-linux-arm64.tar.gz 939b6f779257671a141ecb243bc01e9a5dfb1cd05808820044d915049c3f591a
kubernetes-node-linux-arm.tar.gz 512fddbbb7353d6dd02e51e79e05101ab857c09e4a4970404258c783ab094c95
kubernetes-node-linux-ppc64le.tar.gz 795150d92ef93aa53be2db245b9f88cc40fe0fd27045835a23c8eee830c419ba
kubernetes-node-linux-s390x.tar.gz 58c9b1ef8f8b30fd7061ac87e60b7be9eb79b5bd50c2eef1564838768e7b1d02
kubernetes-node-windows-amd64.tar.gz eae772609aa50d6a1f4f7cf6df5df2f56cbd438b9034f9be622bc0cfe1d13072

Changelog since v1.7.0

Other notable changes

  • Added new flag to kubeadm init: --node-name, that lets you specify the name of the Node object that will be created (#48594, @GheRivero)
  • Added new flag to kubeadm join: --node-name, that lets you specify the name of the Node object that's gonna be created (#48538, @GheRivero)
  • Fixes issue where you could not mount NFS or glusterFS volumes using hostnames on GCI/GKE with COS images. (#42376, @jingxu97)
  • Reduce amount of noise in Stackdriver Logging, generated by the event-exporter component in the fluentd-gcp addon. (#48712, @crassirostris)
  • Add generic NoSchedule toleration to fluentd in gcp config. (#48182, @gmarek)
  • RBAC role and role-binding reconciliation now ensures namespaces exist when reconciling on startup. (#48480, @liggitt)
  • Support NoSchedule taints correctly in DaemonSet controller. (#48189, @mikedanese)
  • kubeadm: Expose only the cluster-info ConfigMap in the kube-public ns (#48050, @luxas)

v1.8.0-alpha.2

Documentation & Examples

Downloads for v1.8.0-alpha.2

filename sha256 hash
kubernetes.tar.gz 26d8079fa6b2d82682db809827d260bbab8e6d0f45e457260b8c5ce640432426
kubernetes-src.tar.gz 141e5c1bf66b69f3c22870b2ab6159abc3b38c12cc20f41c8193044e16df3205

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 6ca63da27ca0c1efa04d079d90eba7e6f01a6e9581317892538be6a97ee64d95
kubernetes-client-darwin-amd64.tar.gz 0bfbd97f7fb7ce5e1228134d8ca40168553d179bfa44cbd5e925a6543fb3bbf5
kubernetes-client-linux-386.tar.gz 29d395cc61c91c602e32412e51d4eae333942e6b9da235270768d11c040733c3
kubernetes-client-linux-amd64.tar.gz b1172bbb1d80ba29612d4de08dc4942b40b0f7d580dbb8ed4423c221f78920fe
kubernetes-client-linux-arm64.tar.gz 994621c4a9d0644e3e8a4f12f563588036412bb72f0104b888f7a2605d3a8015
kubernetes-client-linux-arm.tar.gz 1e0dd9e4e9730a8cd54d8eb7036d5d7307bd930a91d0fcb105601b2d03fda15d
kubernetes-client-linux-ppc64le.tar.gz bdcf58f419b42d83ce8adb350388c962b8934782294f9715b617cdbdf201cc36
kubernetes-client-linux-s390x.tar.gz 5c58217cffb34043fae951222bfd429165c68439f590c8fb8e33e54fe1cab0de
kubernetes-client-windows-386.tar.gz f78ec125f734433c9fc75a9d35dc7bdfa6d145f1cc071ff2e3a5435beef3368f
kubernetes-client-windows-amd64.tar.gz 78dca9aadc140e2868b0a3d1a77b5058e22f24710f9c7956d755b473b575bb9d

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 802bb71cf19147857a50e842a00d50641f78fec5c5791a524639f7af70f9e1d4
kubernetes-server-linux-arm64.tar.gz b8f15c32320188981d5e75c474d4e826e45f59083eb66304151da112fb3052b1
kubernetes-server-linux-arm.tar.gz 8f800befc32d8402a581c47254db921d54caa31c50513c257b251435756918f1
kubernetes-server-linux-ppc64le.tar.gz a406bd0aaa92633dbb43216312971164b0230ea01c77679d12b9ffc873956d0d
kubernetes-server-linux-s390x.tar.gz 8e038b4ccdfc89a08204927c8097a51bd9e786a97c2f9d73fca763ebee6c2373

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 1a9725cfb55991680fc75cb862d8a74d76f453be9e9f8ad043d62d5911ab50b9
kubernetes-node-linux-arm64.tar.gz 44fbdd86048bea2cb3d2d6ec1b6cb2c4ae19cb32f6df28e15392cd7f028a4350
kubernetes-node-linux-arm.tar.gz 76d9d36aa182fb93aab7a01f22f7a008ad2906a6224b4c009074100676403337
kubernetes-node-linux-ppc64le.tar.gz 07327ce6fe78bbae3d34b185b54ea0204bf875df488f0293ee1271599189160d
kubernetes-node-linux-s390x.tar.gz e84a8c638834c435f82560b86f1a14ec861a8fc967a7cd7055ab86526ce744d0
kubernetes-node-windows-amd64.tar.gz f0f69dc70751e3be2d564aa272f7fe67e86e91c7de3034776b98faddef51a73d

Changelog since v1.7.0

Action Required

Other notable changes

  • Removed scheduler dependencies to testapi. (#48405, @k82cn)
  • kubeadm: Fix a bug where kubeadm join would wait 5 seconds without doing anything. Now kubeadm join executes the tasks immediately. (#48737, @mattmoyer)
  • Reduce amount of noise in Stackdriver Logging, generated by the event-exporter component in the fluentd-gcp addon. (#48712, @crassirostris)
  • To allow the userspace proxy to work correctly on multi-interface hosts when using the non-default-route interface, you may now set the bindAddress configuration option to an IP address assigned to a network interface. The proxy will use that IP address for any required NAT operations instead of the IP address of the interface which has the default route. (#48613, @dcbw)
  • Move Mesos Cloud Provider out of Kubernetes Repo (#47232, @gyliu513)
    • kubeadm now can accept versions like "1.6.4" where previously it strictly required "v1.6.4" (#48507, @kad)
  • kubeadm: Implementing the certificates phase fully (#48196, @fabriziopandini)
  • Added case on 'terminated-but-not-yet-deleted' for Admit. (#48322, @k82cn)
  • kubectl run --env no longer supports CSV parsing. To provide multiple env vars, use the --env flag multiple times instead of having env vars separated by commas. E.g. --env ONE=1 --env TWO=2 instead of --env ONE=1,TWO=2. (#47460, @mengqiy)
  • Local storage teardown fix (#48402, @ianchakeres)
  • support json output for log backend of advanced audit (#48605, @CaoShuFeng)
  • Requests with the query parameter ?watch= are treated by the API server as a request to watch, but authorization and metrics were not correctly identifying those as watch requests, instead grouping them as list calls. (#48583, @smarterclayton)
  • As part of the NetworkPolicy "v1" changes, it is also now (#47123, @danwinship)
    • possible to update the spec field of an existing
    • NetworkPolicy. (Previously you had to delete and recreate a
    • NetworkPolicy if you wanted to change it.)
  • Fix udp service blackhole problem when number of backends changes from 0 to non-0 (#48524, @freehan)
  • kubeadm: Make self-hosting work by using DaemonSets and split it out to a phase that can be invoked via the CLI (#47435, @luxas)
  • Added new flag to kubeadm join: --node-name, that lets you specify the name of the Node object that's gonna be created (#48538, @GheRivero)
  • Fix Audit-ID header key (#48492, @CaoShuFeng)
  • Checked container spec when killing container. (#48194, @k82cn)
  • Fix kubectl describe for pods with controllerRef (#45467, @ddysher)
  • Skip errors when unregistering juju kubernetes-workers (#48144, @ktsakalozos)
  • Configures the Juju Charm code to run kube-proxy with conntrack-max-per-core set to 0 when in an lxc as a workaround for issues when mounting /sys/module/nf_conntrack/parameters/hashsize (#48450, @wwwtyro)
  • Group and order imported packages. (#48399, @k82cn)
  • RBAC role and role-binding reconciliation now ensures namespaces exist when reconciling on startup. (#48480, @liggitt)
  • Fix charms leaving services running after remove-unit (#48446, @Cynerva)
  • Added helper funcs to schedulercache.Resource. (#46926, @k82cn)
  • When performing a GET then PUT, the kube-apiserver must write the canonical representation of the object to etcd if the current value does not match. That allows external agents to migrate content in etcd from one API version to another, across different storage types, or across varying encryption levels. This fixes a bug introduced in 1.5 where we unintentionally stopped writing the newest data. (#48394, @smarterclayton)
  • Fixed kubernetes charms not restarting services after snap upgrades (#48440, @Cynerva)
  • Fix: namespace-create have kubectl in path (#48439, @ktsakalozos)
  • add validate for advanced audit policy (#47784, @CaoShuFeng)
  • Support NoSchedule taints correctly in DaemonSet controller. (#48189, @mikedanese)
  • Adds configuration option for Swift object store container name to OpenStack Heat provider. (#48281, @hogepodge)
  • Allow the system:heapster ClusterRole read access to deployments (#48357, @faraazkhan)
  • Ensure get_password is accessing a file that exists. (#48351, @ktsakalozos)
  • GZip openapi schema if accepted by client (#48151, @apelisse)
  • Fixes issue where you could not mount NFS or glusterFS volumes using hostnames on GCI/GKE with COS images. (#42376, @jingxu97)
  • Previously a deleted service account token secret would be considered valid until it was reaped. Now it is invalid as soon as the deletionTimestamp is set. (#48343, @deads2k)
  • Securing the cluster created by Juju (#47835, @ktsakalozos)
  • addon-resizer flapping behavior was removed. (#46850, @x13n)
  • Change default httpGet probe User-Agent to kube-probe/<version major.minor> if none specified, overriding the default Go User-Agent. (#47729, @paultyng)
  • Registries backed by the generic Store's Update implementation support delete-on-update, which allows resources to be automatically deleted during an update provided: (#48065, @ironcladlou) * Garbage collection is enabled for the Store * The resource being updated has no finalizers * The resource being updated has a non-nil DeletionGracePeriodSeconds equal to 0
    • With this fix, Custom Resource instances now also support delete-on-update behavior under the same circumstances.
  • Fixes an edge case where "kubectl apply view-last-applied" would emit garbage if the data contained Go format codes. (#45611, @atombender)
  • Bumped Heapster to v1.4.0. (#48205, @piosz)
  • In GCE and in a "private master" setup, do not set the network-plugin provider to CNI by default if a network policy provider is given. (#48004, @dnardo)
  • Add generic NoSchedule toleration to fluentd in gcp config. (#48182, @gmarek)
  • kubeadm: Expose only the cluster-info ConfigMap in the kube-public ns (#48050, @luxas)
  • Fixes kubelet race condition in container manager. (#48123, @msau42)
  • Bump GCE ContainerVM to container-vm-v20170627 (#48159, @zmerlynn)
  • Add PriorityClassName and Priority fields to PodSpec. (#45610, @bsalamat)
  • Add a failsafe for etcd not returning a connection string (#48054, @ktsakalozos)
  • Fix fluentd-gcp configuration to facilitate JSON parsing (#48139, @crassirostris)
  • Setting env var ENABLE_BIG_CLUSTER_SUBNETS=true will allow kube-up.sh to start clusters bigger that 4095 Nodes on GCE. (#47513, @gmarek)
  • When determining the default external host of the kube apiserver, any configured cloud provider is now consulted (#47038, @yastij)
  • Updated comments for functions. (#47242, @k82cn)
  • Fix setting juju worker labels during deployment (#47178, @ktsakalozos)
  • kubefed init correctly checks for RBAC API enablement. (#48077, @liggitt)
  • The garbage collector now cascades deletion properly when deleting an object with propagationPolicy="background". This resolves issue [#44046](https://github.com/kubernetes/kubernetes/issues/44046), so that when a deployment is deleted with propagationPolicy="background", the garbage collector ensures dependent pods are deleted as well. (#44058, @caesarxuchao)
  • Fix restart action on juju kubernetes-master (#47170, @ktsakalozos)
  • e2e: bump kubelet's resurce usage limit (#47971, @yujuhong)
  • Cluster Autoscaler 0.6 (#48074, @mwielgus)
  • Checked whether balanced Pods were created. (#47488, @k82cn)
  • Update protobuf time serialization for a one second granularity (#47975, @deads2k)
  • Bumped Heapster to v1.4.0-beta.0 (#47961, @piosz)
  • kubectl api-versions now always fetches information about enabled API groups and versions instead of using the local cache. (#48016, @liggitt)
  • Removes alpha feature gate for affinity annotations. (#47869, @timothysc)
  • Websocket requests may now authenticate to the API server by passing a bearer token in a websocket subprotocol of the form base64url.bearer.authorization.k8s.io.<base64url-encoded-bearer-token> (#47740, @liggitt)
  • Update cadvisor to v0.26.1 (#47940, @Random-Liu)
  • Bump up npd version to v0.4.1 (#47892, @ajitak)
  • Allow StorageClass Ceph RBD to specify image format and image features. (#45805, @weiwei04)
  • Removed mesos related labels. (#46824, @k82cn)
  • Add RBAC support to fluentd-elasticsearch cluster addon (#46203, @simt2)
  • Avoid redundant copying of tars during kube-up for gce if the same file already exists (#46792, @ianchakeres)
  • container runtime version has been added to the output of kubectl get nodes -o=wide as CONTAINER-RUNTIME (#46646, @rickypai)
  • cAdvisor binds only to the interface that kubelet is running on instead of all interfaces. (#47195, @dims)
  • The schema of the API that are served by the kube-apiserver, together with a small amount of generated code, are moved to k8s.io/api (https://github.com/kubernetes/api). (#44784, @caesarxuchao)

v1.7.0

Documentation & Examples

Downloads for v1.7.0

filename sha256 hash
kubernetes.tar.gz 947f1dd9a9b6b427faac84067a30c86e83e6391eb42f09ddcc50a8694765c31a
kubernetes-src.tar.gz d3d8b0bfc31164dd703b38d8484cfed7981cacd1e496731880afa87f8bf39aac

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz da298e24318e57ac8a558c390117bd7e9e596b3bdf1c5960979898fefe6c5c88
kubernetes-client-darwin-amd64.tar.gz c22f72e1592731155db5b05d0d660f1d7314288cb020f7980e2a109d9e7ba0e5
kubernetes-client-linux-386.tar.gz fc8e90e96360c3a2c8ec56903ab5acde1dffa4d641e1ee27b804ee6d8e824cf6
kubernetes-client-linux-amd64.tar.gz 8b3ed03f8a4b3a1ec124abde01632ee6dcec9daf9376f0288fd7500b5173981c
kubernetes-client-linux-arm64.tar.gz 8930c74dab9ada31e6994f0dc3fb22d41a602a2880b6b17112718ce73eac0574
kubernetes-client-linux-arm.tar.gz 20a6f4645cab3c0aef72f849ae90b2691605fd3f670ce36cc8aa11aef31c6edb
kubernetes-client-linux-ppc64le.tar.gz 509e214d55e8df1906894cbdc166e791761a3b82a52bcea0de65ceca3143c8b5
kubernetes-client-linux-s390x.tar.gz fd39f47b691fc608f2ea3fed35408dd4c0b1d198605ec17363b0987b123a4702
kubernetes-client-windows-386.tar.gz d9b72cfeefee0cd2db5f6a388bdb9da1e33514498f4d88be1b04282db5bfbd3d
kubernetes-client-windows-amd64.tar.gz c536952bd29a7ae12c8fa148d592cc3c353dea4d0079e8497edaf8a759a16006

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 175fc9360d4f26b5f60b467798d851061f01d0ca555c254ef44a8a9822cf7560
kubernetes-server-linux-arm64.tar.gz f1e039e0e2923d1ea02fd76453aa51715ca83c5c26ca1a761ace2c717b79154f
kubernetes-server-linux-arm.tar.gz 48dc95e5230d7a44b64b379f9cf2e1ec72b7c4c7c62f4f3e92a73076ad6376db
kubernetes-server-linux-ppc64le.tar.gz dc079cd18333c201cfd0f5b0e93e602d020a9e665d8c13968170a2cd89eebeb4
kubernetes-server-linux-s390x.tar.gz fe6674e7d69aeffd522e543e957897e2cb943e82d5ccd368ccb9009e1128273f

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 6c6cece62bad5bfeaf4a4b14e93c9ba99c96dc82b7855a2214cdf37a65251de8
kubernetes-node-linux-arm64.tar.gz dd75dc044fb1f337b60cb4b27c9bbdca4742d8bc0a1d03d13553a1b8fc593e98
kubernetes-node-linux-arm.tar.gz c5d832c93c24d77414a880d8b7c4fac9a7443305e8e5c704f637ff023ff56f94
kubernetes-node-linux-ppc64le.tar.gz 649813a257353c5b85605869e33aeeb0c070e64e6fee18bc9c6e70472aa05677
kubernetes-node-linux-s390x.tar.gz 5ca0a7e9e90b2de7aff7bbdc84f662140ce847ea46cdb78802ce75459e0cc043
kubernetes-node-windows-amd64.tar.gz 4b84b0025aff1d4406f3e5cd5fa86940f594e3ec6e1d12d3ce1eea5f5b3fc55d

Major Themes

Kubernetes 1.7 is a milestone release that adds security, stateful application, and extensibility features motivated by widespread production use of Kubernetes.

Security enhancements in this release include encrypted secrets (alpha), network policy for pod-to-pod communication, the node authorizer to limit Kubelet access to API resources, and Kubelet client / server TLS certificate rotation (alpha).

Major features for stateful applications include automated updates to StatefulSets, enhanced updates for DaemonSets, a burst mode for faster StatefulSets scaling, and (alpha) support for local storage.

Extensibility features include API aggregation (beta), CustomResourceDefinitions (beta) in favor of ThirdPartyResources, support for extensible admission controllers (alpha), pluggable cloud providers (alpha), and container runtime interface (CRI) enhancements.

Action Required Before Upgrading

Network

  • NetworkPolicy has been promoted from extensions/v1beta1 to the new networking.k8s.io/v1 API group. The structure remains unchanged from the v1beta1 API. The net.beta.kubernetes.io/network-policy annotation on Namespaces (used to opt in to isolation) has been removed. Instead, isolation is now determined on a per-pod basis. A NetworkPolicy may target a pod for isolation by including the pod in its spec.podSelector. Targeted Pods accept the traffic specified in the respective NetworkPolicy (and nothing else). Pods not targeted by any NetworkPolicy accept all traffic by default. (#39164, @danwinship)

    Action Required: When upgrading to Kubernetes 1.7 (and a network plugin that supports the new NetworkPolicy v1 semantics), you should consider the following.

    The v1beta1 API used an annotation on Namespaces to activate the DefaultDeny policy for an entire Namespace. To activate default deny in the v1 API, you can create a NetworkPolicy that matches all Pods but does not allow any traffic:

    kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
  name: default-deny
spec:
  podSelector:

    This will ensure that Pods that aren't matched by any other NetworkPolicy will continue to be fully-isolated, as they were in v1beta1.

    In Namespaces that previously did not have the "DefaultDeny" annotation, you should delete any existing NetworkPolicy objects. These had no effect in the v1beta1 API, but with v1 semantics they might cause some traffic to be unintentionally blocked.

Storage

  • Alpha volume provisioning is removed and default storage class should be used instead. (#44090, @NickrenREN)

  • Portworx volume driver no longer has to run on the master. (#45518, @harsh-px)

  • Default behavior in Cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. (#44798, @zetaab)

  • PodSpecs containing parent directory references such as .. (for example, ../bar) in hostPath volume path or in volumeMount subpaths must be changed to the simple absolute path. Backsteps .. are no longer allowed.(#47290, @jhorwit2).

API Machinery

  • The Namespace API object no longer supports the deletecollection operation. (#46407, @liggitt)

  • The following alpha API groups were unintentionally enabled by default in previous releases, and will no longer be enabled by default in v1.8: (#47690, @caesarxuchao)

    • rbac.authorization.k8s.io/v1alpha1

    • settings.k8s.io/v1alpha1

    • If you wish to continue using them in v1.8, please enable them explicitly using the --runtime-config flag on the apiserver (for example, --runtime-config="rbac.authorization.k8s.io/v1alpha1,settings.k8s.io/v1alpha1")

  • cluster/update-storage-objects.sh now supports updating StorageClasses in etcd to storage.k8s.io/v1. You must do this prior to upgrading to 1.8. (#46116, @ncdc)

Controller Manager

  • kube-controller-manager has dropped support for the --insecure-experimental-approve-all-kubelet-csrs-for-group flag. It is accepted in 1.7, but ignored. Instead, the csrapproving controller uses authorization checks to determine whether to approve certificate signing requests: (#45619, @mikedanese)

    • Before upgrading, users must ensure their controller manager will enable the csrapproving controller, create an RBAC ClusterRole and ClusterRoleBinding to approve CSRs for the same group, then upgrade. Example roles to enable the equivalent behavior can be found in the TLS bootstrapping documentation.

kubectl (CLI)

  • kubectl create role and kubectl create clusterrole invocations must be updated to specify multiple resource names as repeated --resource-name arguments instead of comma-separated arguments to a single --resource-name argument. E.g. --resource-name=x,y must become --resource-name x --resource-name y (#44950, @xilabao)

  • kubectl create rolebinding and kubectl create clusterrolebinding invocations must be updated to specify multiple subjects as repeated --user, --group, or --serviceaccount arguments instead of comma-separated arguments to a single --user, --group, or --serviceaccount. E.g. --user=x,y must become --user x --user y (#43903, @xilabao)

kubeadm

  • kubeadm: Modifications to cluster-internal resources installed by kubeadm will be overwritten when upgrading from v1.6 to v1.7. (#47081, @luxas)

  • kubeadm deb/rpm packages: cAdvisor doesn't listen on 0.0.0.0:4194 without authentication/authorization because of the possible information leakage. The cAdvisor API can still be accessed via https://{node-ip}:10250/stats/, though. (kubernetes/release#356, @luxas)

Cloud Providers

  • Azure: Container permissions for provisioned volumes have changed to private. If you have existing Azure volumes that were created by Kubernetes v1.6.0-v1.6.5, you should change the permissions on them manually. (#47605, @brendandburns)

  • GKE/GCE: New and upgraded 1.7 GCE/GKE clusters no longer have an RBAC ClusterRoleBinding that grants the cluster-admin ClusterRole to the default service account in the kube-system Namespace. (#46750, @cjcullen). If this permission is still desired, run the following command to explicitly grant it, either before or after upgrading to 1.7:

    kubectl create clusterrolebinding kube-system-default --serviceaccount=kube-system:default --clusterrole=cluster-admin

Known Issues

Populated via v1.7.x known issues / FAQ accumulator

  • The kube-apiserver discovery APIs (for example, /apis) return information about the API groups being served, and can change dynamically. During server startup, prior to the server reporting healthy (via /healthz), not all API groups may be reported. Wait for the server to report healthy (via /healthz) before depending on the information provided by the discovery APIs. Additionally, since the information returned from the discovery APIs may change dynamically, a cache of the results should not be considered authoritative. ETag support is planned in a future version to facilitate client caching. (#47977, #44957)

  • The DaemonSet controller will evict running Pods that do not tolerate the NoSchedule taint if the taint is added to a Node. There is an open PR (#48189) to resolve this issue, but as this issue also exists in 1.6, and as we do not wish to risk release stability by merging it directly prior to a release without sufficient testing, we have decided to defer merging the PR until the next point release for each minor version (#48190).

  • Protobuf serialization does not distinguish between [] and null. API fields previously capable of storing and returning either [] and null via JSON API requests (for example, the Endpoints subsets field) can now store only null when created using the protobuf content-type or stored in etcd using protobuf serialization (the default in 1.6). JSON API clients should tolerate null values for such fields, and treat null and [] as equivalent in meaning unless specifically documented otherwise for a particular field. (#44593)

  • Local volume source paths that are directories and not mount points fail to unmount. A fix is in process (#48331).

  • Services of type LoadBalancer (on GCE/GKE) that have static IP addresses will cause the Service Controller to panic and thereby causing the kube-controller-manager to crash loop. (#48848)

Deprecations

Cluster provisioning scripts

Client libraries

  • Swagger 1.2 spec (/swaggerapi/*) is deprecated. Please use OpenAPI instead.

DaemonSet

  • DaemonSet’s spec.templateGeneration has been deprecated. (#45924, @janetkuo)

kube-proxy

  • In 1.7, the kube-proxy component has been converted to use a configuration file. The old flags still work in 1.7, but they are being deprecated and will be removed in a future release. Cluster administrators are advised to switch to using the configuration file, but no action is strictly necessary in 1.7. (#34727, @ncdc)

Namespace

  • The Namespace API object no longer supports the deletecollection operation. (#46407, @liggitt)

Scheduling

  • If you are using AffinityInAnnotations=true in --feature-gates, then the 1.7 release is your last opportunity to convert from specifying affinity/anti-affinity using the scheduler.alpha.kubernetes.io/affinity annotation on Pods, to using the Affinity field of PodSpec. Support for the alpha version of node and pod affinity (which uses the scheduler.alpha.kubernetes.io/affinity annotations on Pods) is going away in Kubernetes 1.8 (not this release, but the next release). If you have not enabled AffinityInAnnotations=true in --feature-gates, then this change does not affect you.

Notable Features

Features for this release were tracked via the use of the kubernetes/features issues repo. Each Feature issue is owned by a Special Interest Group from kubernetes/community

Kubefed

  • Deprecate the --secret-name flag from kubefed join, instead generating the secret name arbitrarily. (#42513, @perotinus)

Kubernetes API

User Provided Extensions

Application Deployment

StatefulSet

  • [beta] StatefulSet supports RollingUpdate and OnDelete update strategies.

  • [alpha] StatefulSet authors should be able to relax the ordering and parallelism policies for software that can safely support rapid, out-of-order changes.

DaemonSet

Deployments

  • [beta] Deployments uses a hashing collision avoidance mechanism that ensures new rollouts will not block on hashing collisions anymore. (kubernetes/features#287)

PodDisruptionBudget

  • [beta] PodDisruptionBudget has a new field MaxUnavailable, which allows users to specify the maximum number of disruptions that can be tolerated during eviction. For more information, see Pod Disruptions and Specifying a Disruption Budget for your Application.
  • PodDisruptionBudget now uses ControllerRef to make the right decisions about Pod eviction even if the built in application controllers have overlapping selectors.

Security

Admission Control

TLS Bootstrapping

Audit Logging

  • [alpha] Advanced Auditing enhances the Kubernetes API audit logging capabilities through a customizable policy, pluggable audit backends, and richer audit data.

Encryption at Rest

Node Authorization

  • [beta] A new Node authorization mode and NodeRestriction admission plugin, when used in combination, limit nodes' access to specific APIs, so that they may only modify their own Node API object, only modify Pod objects bound to themselves, and only retrieve secrets and configmaps referenced by pods bound to themselves. See Using Node Authorization for more information.

Application Autoscaling

Horizontal Pod Autoscaler

Cluster Lifecycle

kubeadm

Cloud Provider Support

Cluster Federation

Placement Policy

  • [alpha] The federation-apiserver now supports a SchedulingPolicy admission controller that enables policy-based control over placement of federated resources. For more information, see Set up placement policies in Federation.

Cluster Selection

Instrumentation

Core Metrics API

  • [alpha] Introduces a lightweight monitoring component for serving the core resource metrics API used by the Horizontal Pod Autoscaler and other components (kubernetes/features#271)

Internationalization

kubectl (CLI)

  • Features

    • kubectl logs supports specifying a container name when using label selectors (#44282, @derekwaynecarr)

    • kubectl rollout supports undo and history for DaemonSet (#46144, @janetkuo)

    • kubectl rollout supports status and history for StatefulSet (#46669, @kow3ns).

    • Implement kubectl get controllerrevisions (#46655, @janetkuo)

    • kubectl create clusterrole supports --non-resource-url (#45809, @CaoShuFeng)

    • kubectl logs and kubectl attach support specifying a wait timeout with --pod-running-timeout (#41813, @shiywang)

    • New commands

    • Strategic Merge Patch

      • Reference docs now display the patch type and patch merge key used by kubectl apply to merge and identify unique elements in arrays.

        • kubectl edit and kubectl apply will keep the ordering of elements in merged lists (#45980, @mengqiy)

        • New patch directive (retainKeys) to specifying clearing fields missing from the request (#44597, @mengqiy)

        • Open API now includes strategic merge patch tags (previously only in go struct tags) (#44121, @mbohlool)

    • Plugins

      • Introduces the ability to extend kubectl by adding third-party plugins. Developer preview, please refer to the documentation for instructions about how to use it. (#37499, @fabianofranz)

      • Added support for a hierarchy of kubectl plugins (a tree of plugins as children of other plugins). (#45981, @fabianofranz)

      • Added exported env vars to kubectl plugins so that plugin developers have access to global flags, namespace, the plugin descriptor and the full path to the caller binary.

    • Enhancement

      • kubectl auth can-i now supports non-resource URLs (#46432, @CaoShuFeng)

      • kubectl set selector and kubectl set subject no longer print "running in local/dry-run mode..." at the top. The output can now be piped and interpretted as yaml or json (#46507, @bboreham)

      • When using an in-cluster client with an empty configuration, the --namespace flag is now honored (#46299, @ncdc)

      • The help message for missingResourceError is now generic (#45582, @CaoShuFeng)

      • kubectl taint node now supports label selectors (#44740, @ravisantoshgudimetla)

      • kubectl proxy --www now logs a warning when the dir is invalid (#44952, @CaoShuFeng)

      • kubectl taint output has been enhanced with the operation (#43171, @ravisantoshgudimetla)

      • kubectl --user and --cluster now support completion (#44251, @superbrothers)

      • kubectl config use-context now supports completion (#42336, @superbrothers)

      • kubectl version now supports --output (#39858, @alejandroEsc)

        • kubectl create configmap has a new option --from-env-file that populates a configmap from file which follows a key=val format for each line. (#38882, @fraenkel)

        • kubectl create secret has a new option --from-env-file that populates a configmap from file which follows a key=val format for each line.

    • Printing/describe

      • Print conditions of RC/RS in kubectl describe command. (#44710, @xiangpengzhao)

      • Improved output on kubectl get and kubectl describe for generic objects. (#44222, @fabianofranz)

      • In kubectl describe, find controllers with ControllerRef, instead of showing the original creator. (#42849, @janetkuo)

        • kubectl version has new flag --output (=json or yaml) allowing result of the command to be parsed in either json format or yaml. (#39858, @alejandroEsc)

    • Bug fixes

      • Fix some false negatives in detection of meaningful conflicts during strategic merge patch with maps and lists. (#43469, @enisoc)

        • Fix false positive "meaningful conflict" detection for strategic merge patch with integer values. (#44788, @enisoc)

        • Restored the ability of kubectl running inside a pod to consume resource files specifying a different namespace than the one the pod is running in. (#44862, @liggitt)

      • Kubectl commands run inside a pod using a kubeconfig file now use the namespace specified in the kubeconfig file, instead of using the pod namespace. If no kubeconfig file is used, or the kubeconfig does not specify a namespace, the pod namespace is still used as a fallback. (#44570, @liggitt)

      • Fixed kubectl cluster-info dump to support multi-container pod. (#44088, @xingzhou)

      • Kubectl will print a warning when deleting the current context (#42538, @adohe)

      • Fix VolumeClaims/capacity in kubectl describe statefulsets output. (#47573, @k82cn)

Networking

Network Policy

Load Balancing

  • [stable] Source IP Preservation - change Cloud load-balancer strategy to health-checks and respond to health check only on nodes that host pods for the service. See Create an External Load Balancer - Preserving the client source IP. Two annotations have been promoted to API fields:

    • Service.Spec.ExternalTrafficPolicy was 'service.beta.kubernetes.io/external-traffic' annotation.

    • Service.Spec.HealthCheckNodePort was 'service.beta.kubernetes.io/healthcheck-nodeport' annotation.

Node Components

Container Runtime Interface

Scheduling

Scheduler Extender

Storage

Local Storage

  • [alpha] This feature adds capacity isolation support for local storage at node, container, and volume levels. See updated Reserve Compute Resources for System Daemons documentation.

  • [alpha] Make locally attached (non-network attached) storage available as a persistent volume source. For more information, see Storage Volumes - local.

Volume Plugins

Metrics

Other notable changes

Admission plugin

  • OwnerReferencesPermissionEnforcement admission plugin ignores pods/status. (#45747, @derekwaynecarr)

  • Ignored mirror pods in PodPreset admission plugin. (#45958, @k82cn)

API Machinery

  • The protobuf serialization of API objects has been updated to store maps in a predictable order to ensure that the representation of that object does not change when saved into etcd. This prevents the same object from being seen as being modified, even when no values have changed. (#47701, @smarterclayton)

  • API resource discovery now includes the singularName used to refer to the resource. (#43312, @deads2k)

  • Enhance the garbage collection admission plugin so that a user who doesn't have delete permission of the owning object cannot modify the blockOwnerDeletion field of existing ownerReferences, or add new ownerReferences with blockOwnerDeletion=true (#43876, @caesarxuchao)

  • Exec and portforward actions over SPDY now properly handle redirects sent by the Kubelet (#44451, @ncdc)

  • The proxy subresource APIs for nodes, services, and pods now support the HTTP PATCH method. (#44929, @liggitt)

  • The Categories []string field on discovered API resources represents the list of group aliases (e.g. "all") that each resource belongs to. (#43338, @fabianofranz)

  • [alpha] The Kubernetes API supports retrieving tabular output for API resources via a new mime-type application/json;as=Table;v=v1alpha1;g=meta.k8s.io. The returned object (if the server supports it) will be of type meta.k8s.io/v1alpha1 with Table, and contain column and row information related to the resource. Each row will contain information about the resource - by default it will be the object metadata, but callers can add the ?includeObject=Object query parameter and receive the full object. In the future kubectl will use this to retrieve the results of kubectl get. (#40848, @smarterclayton)

  • The behavior of some watch calls to the server when filtering on fields was incorrect. If watching objects with a filter, when an update was made that no longer matched the filter a DELETE event was correctly sent. However, the object that was returned by that delete was not the (correct) version before the update, but instead, the newer version. That meant the new object was not matched by the filter. This was a regression from behavior between cached watches on the server side and uncached watches, and thus broke downstream API clients. (#46223, @smarterclayton)

  • OpenAPI spec is now available in protobuf binary and gzip format (with ETag support) (#45836, @mbohlool)

  • Updating apiserver to return UID of the deleted resource. Clients can use this UID to verify that the resource was deleted or waiting for finalizers. (#45600, @nikhiljindal)

  • Fix incorrect conflict errors applying strategic merge patches to resources. (#43871, @liggitt)

  • Fix init container status reporting when active deadline is exceeded. (#46305, @sjenning)

  • Moved qos to api.helpers. (#44906, @k82cn)

  • Fix issue with the resource quota controller causing add quota to be resynced at the wrong (#45685, @derekwaynecarr)

  • Added Group/Version/Kind and Action extension to OpenAPI Operations (#44787, @mbohlool)

  • Make clear that meta.KindToResource is only a guess (#45272, @sttts)

  • Add APIService conditions (#43301, @deads2k)

  • Create and push a docker image for the cloud-controller-manager (#45154, @luxas)

  • Deprecated Binding objects in 1.7. (#47041, @k82cn)

  • Adds the Categories []string field to API resources, which represents the list of group aliases (e.g. "all") that every resource belongs to. (#43338, @fabianofranz)

  • --service-account-lookup now defaults to true, requiring the Secret API object containing the token to exist in order for a service account token to be valid. This enables service account tokens to be revoked by deleting the Secret object containing the token. (#44071, @liggitt)

  • API Registration is now in beta. (#45247, @mbohlool)

  • The Kubernetes API server now exits if it encounters a networking failure (e.g. the networking interface hosting its address goes away) to allow a process manager (systemd/kubelet/etc) to react to the problem. Previously the server would log the failure and try again to bind to its configured address:port. (#42272, @marun)

  • The Prometheus metrics for the kube-apiserver for tracking incoming API requests and latencies now return the subresource label for correctly attributing the type of API call. (#46354, @smarterclayton)

  • kube-apiserver now drops unneeded path information if an older version of Windows kubectl sends it. (#44421, @mml)

Application autoscaling

  • Make "upscale forbidden window" and "downscale forbidden window" duration configurable in arguments of kube-controller-manager. (#42101, @Dmitry1987)

Application Deployment

  • StatefulSetStatus now tracks replicas, readyReplicas, currentReplicas, and updatedReplicas. The semantics of replicas is now consistent with DaemonSet and ReplicaSet, and readyReplicas has the semantics that replicas did prior to 1.7 (#46669, @kow3ns).

  • ControllerRevision type has been added for StatefulSet and DaemonSet history. Clients should not depend on the stability of this type as it may change, as necessary, in future releases to support StatefulSet and DaemonSet update and rollback. We enable this type as we do with beta features, because StatefulSet update and DaemonSet update are enabled. (#45867, @kow3ns)

  • PodDisruptionBudget now uses ControllerRef to decide which controller owns a given Pod, so it doesn't get confused by controllers with overlapping selectors. (#45003, @krmayankk)

  • Deployments are updated to use (1) a more stable hashing algorithm (fnv) than the previous one (adler) and (2) a hashing collision avoidance mechanism that will ensure new rollouts will not block on hashing collisions anymore. (#44774, @kargakis)(kubernetes/features#287)

  • Deployments and DaemonSets rollouts are considered complete when all of the desired replicas are updated and available. This change affects kubectl rollout status and Deployment condition. (#44672, @kargakis)

  • Job controller now respects ControllerRef to avoid fighting over Pods. (#42176, @enisoc)

  • CronJob controller now respects ControllerRef to avoid fighting with other controllers. (#42177, @enisoc)

Cluster Autoscaling

  • Cluster Autoscaler 0.6. More information available here.

  • cluster-autoscaler: Fix duplicate writing of logs. (#45017, @MaciekPytel)

Cloud Provider Enhancement

  • AWS:

    • New 'service.beta.kubernetes.io/aws-load-balancer-extra-security-groups' Service annotation to specify extra Security Groups to be added to ELB created by AWS cloudprovider (#45268, @redbaron)

    • Clean up blackhole routes when using kubenet (#47572, @justinsb)

    • Maintain a cache of all instances, to fix problem with > 200 nodes with ELBs (#47410, @justinsb)

    • Avoid spurious ELB listener recreation - ignore case when matching protocol (#47391, @justinsb)

    • Allow configuration of a single security group for ELBs (#45500, @nbutton23)

    • Remove check that forces loadBalancerSourceRanges to be 0.0.0.0/0. (#38636, @dhawal55)

      • Allow setting KubernetesClusterID or KubernetesClusterTag in combination with VPC. (#42512, @scheeles)

      • Start recording cloud provider metrics for AWS (#43477, @gnufied)

      • AWS: Batch DescribeInstance calls with nodeNames to 150 limit, to stay within AWS filter limits. (#47516, @gnufied)

      • AWS: Process disk attachments even with duplicate NodeNames (#47406, @justinsb)

    • Allow configuration of a single security group for ELBs (#45500, @nbutton23)

    • Fix support running the master with a different AWS account or even on a different cloud provider than the nodes. (#44235, @mrIncompetent)

    • Support node port health check (#43585, @foolusion)

    • Support for ELB tagging by users (#45932, @lpabon)

  • Azure:

  • GCP:

    • Bump GLBC version to 0.9.5 - fixes loss of manually modified GCLB health check settings upon upgrade from pre-1.6.4 to either 1.6.4 or 1.6.5. (#47567, @nicksardo)

    • [beta] Support creation of GCP Internal Load Balancers from Service objects (#46663, @nicksardo)

    • GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8. This means that clusters can be created in 192.168.0.0./16 and 172.16.0.0/12 while preserving the container IPs (which would be lost before). (#46473, @thockin)

    • The Calico version included in kube-up for GCE has been updated to v2.2. (#38169, @caseydavenport)

    • Add ip-masq-agent addon to the addons folder which is used in GCE if --non-masquerade-cidr is set to 0/0 (#46038, @dnardo)

    • Enable kubelet csr bootstrap in GCE/GKE (#40760, @mikedanese)

    • Adds support for allocation of pod IPs via IP aliases. (#42147, @bowei)

      • gce kube-up: The Node authorization mode and NodeRestriction admission controller are now enabled (#46796, @mikedanese)

      • Tokens retrieved from Google Cloud with application default credentials will not be cached if the client fails authorization (#46694, @matt-tyler)

      • Add metrics to all major gce operations {latency, errors} (#44510, @bowei)

        • The new metrics are:

        • cloudprovider_gce_api_request_duration_seconds{request, region, zone}

        • cloudprovider_gce_api_request_errors{request, region, zone}

        • request is the specific function that is used.

        • region is the target region (Will be "<n/a>" if not applicable)

        • zone is the target zone (Will be "<n/a>" if not applicable)

        • Note: this fixes some issues with the previous implementation of metrics for disks:

          • Time duration tracked was of the initial API call, not the entire operation.

          • Metrics label tuple would have resulted in many independent histograms stored, one for each disk. (Did not aggregate well).

    • Fluentd now tolerates all NoExecute Taints when run in gcp configuration. (#45715, @gmarek)

      • Taints support in gce/salt startup scripts. (#47632, @mwielgus)

      • GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8. This means that clusters can (#46473, @thockin) be created in 192.168.0.0./16 and 172.16.0.0/12 while preserving the container IPs (which would be lost before).

      • Support running Ubuntu image on GCE node (#44744, @yguo0905)

    • The gce metadata server can now be hidden behind a proxy, hiding the kubelet's token. (#45565, @Q-Lee)

  • OpenStack:

  • vSphere:

Cluster Provisioning

  • Juju:

    • Add Kubernetes 1.6 support to Juju charms (#44500, @Cynerva)

      • Add metric collection to charms for autoscaling

      • Update kubernetes-e2e charm to fail when test suite fails

      • Update Juju charms to use snaps

      • Add registry action to the kubernetes-worker charm

      • Add support for kube-proxy cluster-cidr option to kubernetes-worker charm

      • Fix kubernetes-master charm starting services before TLS certs are saved

      • Fix kubernetes-worker charm failures in LXD

      • Fix stop hook failure on kubernetes-worker charm

      • Fix handling of juju kubernetes-worker.restart-needed state

      • Fix nagios checks in charms

    • Enable GPU mode if GPU hardware detected (#43467, @tvansteenburgh)

    • Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm (#44635, @Cynerva)

    • Disallows installation of upstream docker from PPA in the Juju kubernetes-worker charm. (#44681, @wwwtyro)

    • Resolves juju vsphere hostname bug showing only a single node in a scaled node-pool. (#44780, @chuckbutler)

    • Fixes a bug in the kubernetes-worker Juju charm code that attempted to give kube-proxy more than one api endpoint. (#44677, @wwwtyro)

    • Added CIFS PV support for Juju Charms (#45117, @chuckbutler)

    • Fixes juju kubernetes master: 1. Get certs from a dead leader. 2. Append tokens. (#43620, @ktsakalozos)

    • kubernetes-master juju charm properly detects etcd-scale events and reconfigures appropriately. (#44967, @chuckbutler)

      • Use correct option name in the kubernetes-worker layer registry action (#44921, @jacekn)

      • Send dns details only after cdk-addons are configured (#44945, @ktsakalozos)

      • Added support to the pause action in the kubernetes-worker charm for new flag --delete-local-data (#44931, @chuckbutler)

      • Add namespace-{list, create, delete} actions to the kubernetes-master layer (#44277, @jacekn)

      • Using http2 in kubeapi-load-balancer to fix kubectl exec uses (#43625, @mbruzek)

    • Don't append :443 to registry domain in the kubernetes-worker layer registry action (#45550, @jacekn)

  • kubeadm

    • Enable the Node Authorizer/Admission plugin in v1.7 (#46879, @luxas)

    • Users can now pass extra parameters to etcd in a kubeadm cluster (#42246, @jamiehannaford)

    • Make kubeadm use the new CSR approver in v1.7 (#46864, @luxas)

    • Allow enabling multiple authorization modes at the same time (#42557, @xilabao)

    • add proxy client-certs to kube-apiserver to allow it to proxy aggregated api servers (#43715, @deads2k)* CentOS provider

  • hyperkube

    • The hyperkube image has been slimmed down and no longer includes addon manifests and other various scripts. These were introduced for the now removed docker-multinode setup system. (#44555, @luxas)

  • Support secure etcd cluster for centos provider. (#42994, @Shawyeok)

  • Update to kube-addon-manager:v6.4-beta.2: kubectl v1.6.4 and refreshed base images (#47389, @ixdy)

  • Remove Initializers from admission-control in kubernetes-master charm for pre-1.7 (#46987, @Cynerva)

  • Added state guards to the idle_status messaging in the kubernetes-master charm to make deployment faster on initial deployment. (#47183, @chuckbutler)

Cluster federation

  • Features:

    • Adds annotations to all Federation objects created by kubefed. (#42683, @perotinus)

      • Mechanism of adding federation domain maps to kube-dns deployment via --federations flag is superseded by adding/updating federations key in kube-system/kube-dns configmap. If user is using kubefed tool to join cluster federation, adding federation domain maps to kube-dns is already taken care by kubefed join and does not need further action.

      • Prints out status updates when running kubefed init (#41849, @perotinus)

      • kubefed init now supports overriding the default etcd image name with the --etcd-image parameter. (#46247, @marun)

      • kubefed will now configure NodeInternalIP as the federation API server endpoint when NodeExternalIP is unavailable for federation API servers exposed as NodePort services (#46960, @lukaszo)

      • Automate configuring nameserver in cluster-dns for CoreDNS provider (#42895, @shashidharatd)

      • A new controller for managing DNS records is introduced which can be optionally disabled to enable third party components to manage DNS records for federated services. (#45034, @shashidharatd)

    • Remove the --secret-name flag from kubefed join, instead generating the secret name arbitrarily. (#42513, @perotinus)

    • Use StorageClassName for etcd pvc (#46323, @marun)

  • Bug fixes:

    • Allow disabling federation controllers through override args (#44209, @irfanurrehman)

    • Kubefed: Use service accounts instead of the user's credentials when accessing joined clusters' API servers. (#42042, @perotinus)

    • Avoid panic if route53 fields are nil (#44380, @justinsb)

Credential provider

Information for Kubernetes clients (openapi, swagger, client-go)

  • Features:

    • Add Host field to TCPSocketAction (#42902, @louyihua)

      • Add the ability to lock on ConfigMaps to support HA for self hosted components (#42666, @timothysc)

      • validateClusterInfo: use clientcmdapi.NewCluster() (#44221, @ncdc)

      • OpenAPI spec is now available in protobuf binary and gzip format (with ETag support) (#45836, @mbohlool)

      • HostAliases is now parsed with hostAliases json keys to be in line with the feature's name. (#47512, @rickypai)

      • Add redirect support to SpdyRoundTripper (#44451, @ncdc)

      • Duplicate recurring Events now include the latest event's Message string (#46034, @kensimon)

  • Bug fixes:

    • Fix serialization of EnforceNodeAllocatable (#44606, @ivan4th)

      • Use OS-specific libs when computing client User-Agent in kubectl, etc. (#44423, @monopole)

Instrumentation

Internal storage layer

  • prevent pods/status from touching ownerreferences (#45826, @deads2k)

  • Ensure that autoscaling/v1 is the preferred version for API discovery when autoscaling/v2alpha1 is enabled. (#45741, @DirectXMan12)

  • The proxy subresource APIs for nodes, services, and pods now support the HTTP PATCH method. (#44929, @liggitt)

  • Fluentd now tolerates all NoExecute Taints when run in gcp configuration. (#45715, @gmarek)

Kubernetes Dashboard

kube-dns

  • Updates kube-dns to 1.14.2 (#45684, @bowei)

    • Support kube-master-url flag without kubeconfig

    • Fix concurrent R/Ws in dns.go

    • Fix confusing logging when initialize server

    • Fix printf in cmd/kube-dns/app/server.go

    • Fix version on startup and --version flag

    • Support specifying port number for nameserver in stubDomains

kube-proxy

  • Features:

    • ratelimit runs of iptables by sync-period flags (#46266, @thockin)

    • Log warning when invalid dir passed to kubectl proxy --www (#44952, @CaoShuFeng)

    • Add --write-config-to flag to kube-proxy to allow users to write the default configuration settings to a file. (#45908, @ncdc)

      • When switching from the service.beta.kubernetes.io/external-traffic annotation to the new (#46716, @thockin) externalTrafficPolicy field, the values chnag as follows: * "OnlyLocal" becomes "Local" * "Global" becomes "Cluster".

  • Bug fixes:

kube-scheduler

  • Scheduler can receive its policy configuration from a ConfigMap (#43892, @bsalamat)

  • Aggregated used ports at the NodeInfo level for PodFitsHostPorts predicate. (#42524, @k82cn)

  • leader election lock based on scheduler name (#42961, @wanghaoran1988)

Storage

  • Features

    • The options passed to a Flexvolume plugin's mount command now contains the pod name (kubernetes.io/pod.name), namespace (kubernetes.io/pod.namespace), uid (kubernetes.io/pod.uid), and service account name (kubernetes.io/serviceAccount.name). (#39488, @liggitt)

    • GCE and AWS dynamic provisioners extension: admins can configure zone(s) in which a persistent volume shall be created. (#38505, @pospispa)

    • Implement API usage metrics for GCE storage. (#40338, @gnufied)

    • Add support for emitting metrics from openstack cloudprovider about storage operations. (#46008, @NickrenREN)

    • vSphere cloud provider: vSphere storage policy support for dynamic volume provisioning. (#46176, @BaluDontu)

    • Support StorageClass in Azure file volume (#42170, @rootfs)

    • Start recording cloud provider metrics for AWS (#43477, @gnufied)

    • Support iSCSI CHAP authentication (#43396, @rootfs)

    • Openstack cinder v1/v2/auto API support (#40423, @mkutsevol](https://github.com/kubernetes/kubernetes/pull/41498), @mikebryant)

    • Alpha feature: allows users to set storage limit to isolate EmptyDir volumes. It enforces the limit by evicting pods that exceed their storage limits (#45686, @jingxu97)

  • Bug fixes

    • Fixes issue with Flexvolume, introduced in 1.6.0, where drivers without an attacher would fail (node indefinitely waiting for attach). A driver API addition is introduced: drivers that don't implement attach should return attach: false on init. (#47503, @chakri-nelluri)

    • Fix dynamic provisioning of PVs with inaccurate AccessModes by refusing to provision when PVCs ask for AccessModes that can't be satisfied by the PVs' underlying volume plugin. (#47274, @wongma7)

    • Fix pods failing to start if they specify a file as a volume subPath to mount. (#45623, @wongma7)

    • Fix erroneous FailedSync and FailedMount events being periodically and indefinitely posted on Pods after kubelet is restarted. (#44781, @wongma7)

    • Fix AWS EBS volumes not getting detached from node if routine to verify volumes are attached runs while the node is down (#46463, @wongma7)

    • Improves performance of Cinder volume attach/detach operations. (#41785, @jamiehannaford)

    • Fix iSCSI iSER mounting. (#47281, @mtanino)

    • iscsi storage plugin: Fix dangling session when using multiple target portal addresses. (#46239, @mtanino)

    • Fix log spam due to unnecessary status update when node is deleted. (#45923, @verult)

    • Don't try to attach volume to new node if it is already attached to another node and the volume does not support multi-attach. (#45346, @codablock)

    • detach the volume when pod is terminated (#45286, @gnufied)

    • Roll up volume error messages in the kubelet sync loop. (#44938, @jayunit100)

    • Catch error when failed to make directory in NFS volume plugin (#38801, @nak3)

Networking

  • DNS and name resolution

    • Updates kube-dns to 1.14.2 (#45684, @bowei)

      • Support kube-master-url flag without kubeconfig

      • Fix concurrent R/Ws in dns.go

      • Fix confusing logging when initializing server

      • Support specifying port number for nameserver in stubDomains

    • A new field hostAliases has been added to pod.spec to support adding entries to a Pod's /etc/hosts file. (#44641, @rickypai)

    • Fix DNS suffix search list support in Windows kube-proxy. (#45642, @JiangtianLi)

  • Kube-proxy

    • ratelimit runs of iptables by sync-period flags (#46266, @thockin)

    • Fix corner-case with OnlyLocal Service healthchecks. (#44313, @thockin)

  • Exclude nodes labeled as master from LoadBalancer / NodePort; restores documented behaviour. (#44745, @justinsb)

  • Adds support for CNI ConfigLists, which permit plugin chaining. (#42202, @squeed)

  • Fix node selection logic on initial LB creation (#45773, @justinsb)

  • When switching from the service.beta.kubernetes.io/external-traffic annotation to the new externalTrafficPolicy field, the values change as follows: * "OnlyLocal" becomes "Local" * "Global" becomes "Cluster". (#46716, @thockin)

  • servicecontroller: Fix node selection logic on initial LB creation (#45773, @justinsb)

  • fixed HostAlias in PodSpec to allow foo.bar hostnames instead of just foo DNS labels. (#46809, @rickypai)

Node controller

Node Components

  • Features

    • Removes the deprecated kubelet flag --babysit-daemons (#44230, @mtaufen)

    • make dockershim.sock configurable (#43914, @ncdc)

    • Support running Ubuntu image on GCE node (#44744, @yguo0905)

    • Kubernetes now shares a single PID namespace among all containers in a pod when running with docker >= 1.13.1. This means processes can now signal processes in other containers in a pod, but it also means that the kubectl exec {pod} kill 1 pattern will cause the Pod to be restarted rather than a single container. (#45236, @verb)

    • A new field hostAliases has been added to the pod spec to support adding entries to a Pod's /etc/hosts file. (#44641, @rickypai)

    • With --feature-gates=RotateKubeletClientCertificate=true set, the Kubelet will (#41912, @jcbsmpsn)

      • request a client certificate from the API server during the boot cycle and pause

      • waiting for the request to be satisfied. It will continually refresh the certificate

    • Create clusters with GPUs in GCE by specifying type=<gpu-type>,count=<gpu-count> to NODE_ACCELERATORS environment variable. (#45130, @vishh)

    • Disk Pressure triggers the deletion of terminated containers on the node. (#45896, @dashpole)

    • Support status.hostIP in downward API (#42717, @andrewsykim)

    • Upgrade Node Problem Detector to v0.4.1. New features added:

      • Add /dev/kmsg support for kernel log parsing. (#112, @euank)

      • Add ABRT support. (#105, @juliusmilan)

      • Add a docker image corruption problem detection in the default docker monitor config. (#117, @ajitak)

    • Upgrade CAdvisor to v0.26.1. New features added:

      • Add Docker overlay2 storage driver support.

      • Add ZFS support.

      • Add UDP metrics (collection disabled by default).

    • Roll up volume error messages in the kubelet sync loop. (#44938, @jayunit100)

    • Allow pods to opt out of PodPreset mutation via an annotation on the pod. (#44965, @jpeeler)

    • Add generic Toleration for NoExecute Taints to NodeProblemDetector, so that NPD can be scheduled to nodes with NoExecute taints by default. (#45883, @gmarek)

    • Prevent kubelet from setting allocatable < 0 for a resource upon initial creation. (#46516, @derekwaynecarr)

  • Bug fixes

    • Changed Kubelet default image-gc-high-threshold to 85% to resolve a conflict with default settings in docker that prevented image garbage collection from resolving low disk space situations when using devicemapper storage. (#40432, @sjenning)

    • Mark all static pods on the Master node as critical to prevent preemption (#47356, @dashpole)

    • Restrict active deadline seconds max allowed value to be maximum uint32 to avoid overflow (#46640, @derekwaynecarr)

    • Fix a bug with cAdvisorPort in the KubeletConfiguration that prevented setting it to 0, which is in fact a valid option, as noted in issue #11710. (#46876, @mtaufen)

    • Fix a bug where container cannot run as root when SecurityContext.RunAsNonRoot is false. (#47009, @yujuhong)

    • Fix the Kubelet PLEG update timestamp to better reflect the health of the component when the container runtime request hangs. (#45496, @andyxning)

    • Avoid failing sync loop health check on container runtime errors (#47124, @andyxning)

    • Fix a bug where Kubelet does not ignore pod manifest files starting with dots (#45111, @dwradcliffe)

    • Fix kubelet reset liveness probe failure count across pod restart boundaries (#46371, @sjenning)

    • Fix log spam due to unnecessary status update when node is deleted. (#45923, @verult)

    • Fix kubelet event recording for selected events. (#46246, @derekwaynecarr)

    • Fix image garbage collector attempting to remove in-use images. (#46121, @Random-Liu)

    • Detach the volume when pod is terminated (#45286, @gnufied)

    • CRI: Fix StopContainer timeout (#44970, @Random-Liu)

    • CRI: Fix kubelet failing to start when using rkt. (#44569, @yujuhong)

    • CRI: kubectl logs -f now stops following when container stops, as it did pre-CRI. (#44406, @Random-Liu)

    • Fixes a bug where pods were evicted even after images are successfully deleted. (#44986, @dashpole)

    • When creating a container using envFrom, (#42083, @fraenkel

      • validate the name of the ConfigMap in a ConfigMapRef
      • validate the name of the Secret in a SecretRef

    • Fix the bug where StartedAt time is not reported for exited containers. (#45977, @yujuhong)

  • Changes/deprecations

    • Marks the Kubelet's --master-service-namespace flag deprecated (#44250, @mtaufen)

    • Remove PodSandboxStatus.Linux.Namespaces.Network from CRI since it is not used/needed. (#45166, @feiskyer)

    • Remove the --enable-cri flag. CRI is now the default, and the only way to integrate with Kubelet for the container runtimes.(#45194, @yujuhong)

    • CRI has been moved to package pkg/kubelet/apis/cri/v1alpha1/runtime as part of Kubelet API path cleanup. (#47113, @feiskyer)

Scheduling

Security

  • Features:

    • Permission to use a PodSecurityPolicy can now be granted within a single namespace by allowing the use verb on the podsecuritypolicies resource within the namespace. (#42360, @liggitt)

    • Break the 'certificatesigningrequests' controller into a 'csrapprover' controller and 'csrsigner' controller. (#45514, @mikedanese)

    • kubectl auth can-i now supports non-resource URLs (#46432, @CaoShuFeng)

    • Promote kubelet tls bootstrap to beta. Add a non-experimental flag to use it and deprecate the old flag. (#46799, @mikedanese)

    • Add the alpha.image-policy.k8s.io/failed-open=true annotation when the image policy webhook encounters an error and fails open. (#46264, @Q-Lee)

    • Add an AEAD encrypting transformer for storing secrets encrypted at rest (#41939, @smarterclayton)

    • Add secretbox and AES-CBC encryption modes to at rest encryption. AES-CBC is considered superior to AES-GCM because it is resistant to nonce-reuse attacks, and secretbox uses Poly1305 and XSalsa20. (#46916, @smarterclayton)

  • Bug fixes:

    • Make gcp auth provider not to override the Auth header if it's already exits (#45575, @wanghaoran1988)

    • The oidc client plugin has reduce round trips and fix scopes requested (#45317, @ericchiang)

    • API requests using impersonation now include the system:authenticated group in the impersonated user automatically. (#44076, @liggitt)

    • RBAC role and rolebinding auto-reconciliation is now performed only when the RBAC authorization mode is enabled. (#43813, @liggitt)

    • PodSecurityPolicy now recognizes pods that specify runAsNonRoot: false in their security context and does not overwrite the specified value (#47073, @Q-Lee)

    • Tokens retrieved from Google Cloud with application default credentials will not be cached if the client fails authorization (#46694, @matt-tyler)

    • Update kube-dns, metadata-proxy, and fluentd-gcp, event-exporter, prometheus-to-sd, and ip-masq-agent addons with new base images containing fixes for CVE-2016-4448, CVE-2016-9841, CVE-2016-9843, CVE-2017-1000366, CVE-2017-2616, and CVE-2017-9526. (#47877, @ixdy)

    • Fixed an issue mounting the wrong secret into pods as a service account token. (#44102, @ncdc)

Scalability

  • The HorizontalPodAutoscaler controller will now only send updates when it has new status information, reducing the number of writes caused by the controller. (#47078, @DirectXMan12)

External Dependency Version Information

Continuous integration builds have used the following versions of external dependencies, however, this is not a strong recommendation and users should consult an appropriate installation or upgrade guide before deciding what versions of etcd, docker or rkt to use.

  • Docker versions 1.10.3, 1.11.2, 1.12.6 have been validated

    • Docker version 1.12.6 known issues

      • overlay2 driver not fully supported

      • live-restore not fully supported

      • no shared pid namespace support

    • Docker version 1.11.2 known issues

      • Kernel crash with Aufs storage driver on Debian Jessie (#27885) which can be identified by the node problem detector

      • Leaked File descriptors (#275)

      • Additional memory overhead per container (#21737)

    • Docker 1.10.3 contains backports provided by RedHat for known issues

  • For issues with Docker 1.13.X please see the 1.13.X tracking issue

  • rkt version 1.23.0+

  • etcd version 3.0.17

  • Go version: 1.8.3. Link to announcement

    • Kubernetes can only be compiled with Go 1.8. Support for all other versions is dropped.

Previous Releases Included in v1.7.0

v1.7.0-rc.1

Documentation & Examples

Downloads for v1.7.0-rc.1

filename sha256 hash
kubernetes.tar.gz 9da0e04de83e14f87540b5b58f415b5cdb78e552e07dc35985ddb1b7f618a2f2
kubernetes-src.tar.gz f4e6cfd0d859d7880d14d1052919a9eb79c26e1cd4105330dda8b05f073cab40

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 5f161559ce91321577c09f03edf6d3416f1964056644c8725394d9c23089b052
kubernetes-client-darwin-amd64.tar.gz c54b07d2b0240e2be57ff6bf95794bf826a082a7b4e8316c9ec45e92539d6252
kubernetes-client-linux-386.tar.gz d61874a51678dee6cb1e5514e703b7070c27fb728e8b18533a5233fcca2e30fd
kubernetes-client-linux-amd64.tar.gz 4004cec39c637fa7a2e3d309d941f3e73e0a16a3511c5e46cbb2fa6bb27d89e5
kubernetes-client-linux-arm64.tar.gz 88c37ea21d7a2c464be6fee29db4f295d738028871127197253923cec00cf179
kubernetes-client-linux-arm.tar.gz 0e5e5f52fe93a78003c6cac171a6aae8cb1f2f761e325d509558df84aba57b32
kubernetes-client-linux-ppc64le.tar.gz d4586a64f239654a53faf1a6c18fc5d5c99bb95df593bf92b5e9fac0daba71e2
kubernetes-client-linux-s390x.tar.gz 728097218b051df26b90863779588517183fa4e1f55dee414aff188e4a50e7df
kubernetes-client-windows-386.tar.gz d949bd6977a707b46609ee740f3a16592e7676a6dc81ad495d9f511cb4d2cb98
kubernetes-client-windows-amd64.tar.gz b787198e3320ef4094112f44e0442f062c04ce2137c14bbec10f5df9fbb3f404

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz e5eaa8951d021621b160d41bc1350dcf64178c46a0e6e656be78a5e5b267dc5d
kubernetes-server-linux-arm64.tar.gz 08b694b46bf7b5906408a331a9ccfb9143114d414d64fcca8a6daf6ec79c282b
kubernetes-server-linux-arm.tar.gz ca980d1669e22cc3846fc2bdf77e6bdc1c49820327128db0d0388c4def77bc16
kubernetes-server-linux-ppc64le.tar.gz c656106048696bd2c4b66a3f8e348b37634abf48a9dc1f4eb941e01da9597b26
kubernetes-server-linux-s390x.tar.gz 7888ed82b33b0002a488224ffa7a93e865e1d2b01e4ccc44b8d04ff4be5fef71

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz 26c74018b048e2ec0d2df61216bda77bdf29c23f34dac6d7b8a55a56f0f95927
kubernetes-node-linux-arm64.tar.gz e5c6d38556f840067b0eea4ca862c5c79a89ff47063dccecf1c0fdc2c25a9a9b
kubernetes-node-linux-arm.tar.gz 4cf1d7843ede557bd629970d1bc21a936b76bf9138fc96224e538c5a61f6e203
kubernetes-node-linux-ppc64le.tar.gz e7a870c53af210cc00f0854e2ffad8ee06b20c4028f256d60d04f31a630291d1
kubernetes-node-linux-s390x.tar.gz 78865fe4029a39744865e0acb4dd15f6f22de8264f7c65a65df52891c3b91967
kubernetes-node-windows-amd64.tar.gz 8b632e7c79e750e7102d02120508f0394d3f11a2c36b42d2c5f96ec4f0f1f1ed

Changelog since v1.7.0-beta.2

Action Required

  • The following alpha API groups were unintentionally enabled by default in previous releases, and will no longer be enabled by default in v1.8: (#47690, @caesarxuchao)
    • rbac.authorization.k8s.io/v1alpha1
    • settings.k8s.io/v1alpha1
    • If you wish to continue using them in v1.8, please enable them explicitly using the --runtime-config flag of the apiserver (for example, --runtime-config="rbac.authorization.k8s.io/v1alpha1,settings.k8s.io/v1alpha1")
  • Paths containing backsteps (for example, "../bar") are no longer allowed in hostPath volume paths, or in volumeMount subpaths (#47290, @jhorwit2)
  • Azure: Change container permissions to private for provisioned volumes. If you have existing Azure volumes that were created by Kubernetes v1.6.0-v1.6.5, you should change the permissions on them manually. (#47605, @brendandburns)

Other notable changes

  • Update kube-dns, metadata-proxy, and fluentd-gcp, event-exporter, prometheus-to-sd, and ip-masq-agent addons with new base images containing fixes for CVE-2016-4448, CVE-2016-9841, CVE-2016-9843, CVE-2017-1000366, CVE-2017-2616, and CVE-2017-9526. (#47877, @ixdy)
  • Bump the memory request/limit for ip-masq-daemon. (#47887, @dnardo)
  • HostAliases is now parsed with hostAliases json keys to be in line with the feature's name. (#47512, @rickypai)
  • Fixes issue w/Flex volume, introduced in 1.6.0, where drivers without an attacher would fail (node indefinitely waiting for attach). Drivers that don't implement attach should return attach: false on init. (#47503, @chakri-nelluri)
  • Tokens retrieved from Google Cloud with application default credentials will not be cached if the client fails authorization (#46694, @matt-tyler)
  • ip-masq-agent is now the default for GCE (#47794, @dnardo)
  • Taints support in gce/salt startup scripts. (#47632, @mwielgus)
  • Fix VolumeClaims/capacity in "kubectl describe statefulsets" output. (#47573, @k82cn)
  • New 'service.beta.kubernetes.io/aws-load-balancer-extra-security-groups' Service annotation to specify extra Security Groups to be added to ELB created by AWS cloudprovider (#45268, @redbaron)
  • AWS: clean up blackhole routes when using kubenet (#47572, @justinsb)
  • The protobuf serialization of API objects has been updated to store maps in a predictable order to ensure that the representation of that object does not change when saved into etcd. This prevents the same object from being seen as being modified, even when no values have changed. (#47701, @smarterclayton)
  • Mark Static pods on the Master as critical (#47356, @dashpole)
  • kubectl logs with label selector supports specifying a container name (#44282, @derekwaynecarr)
  • Adds an approval work flow to the the certificate approver that will approve certificate signing requests from kubelets that meet all the criteria of kubelet server certificates. (#46884, @jcbsmpsn)
  • AWS: Maintain a cache of all instances, to fix problem with > 200 nodes with ELBs (#47410, @justinsb)
  • Bump GLBC version to 0.9.5 - fixes loss of manually modified GCLB health check settings upon upgrade from pre-1.6.4 to either 1.6.4 or 1.6.5. (#47567, @nicksardo)
  • Update cluster-proportional-autoscaler, metadata-proxy, and fluentd-gcp addons with fixes for CVE-2016-4448, CVE-2016-8859, CVE-2016-9841, CVE-2016-9843, and CVE-2017-9526. (#47545, @ixdy)
  • AWS: Batch DescribeInstance calls with nodeNames to 150 limit, to stay within AWS filter limits. (#47516, @gnufied)

v1.8.0-alpha.1

Documentation & Examples

Downloads for v1.8.0-alpha.1

filename sha256 hash
kubernetes.tar.gz 47088d4a0b79ce75a90e73b1dd7f864fc17fe5ff5cea553a072c7a277a70a104
kubernetes-src.tar.gz ec2cb19b55e24c7b9728437fb9e39a442c07b68eaea636b2f6bb340e4b9696dc

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz c2fb538ce73f0ed74bd343485cd8873efcff580e4d948ea4bf2732f1b059e463
kubernetes-client-darwin-amd64.tar.gz 01a1cb673fbb764e47edaea07c1d3fdddd99bbd7b025f9b2498f38c99d5be4b2
kubernetes-client-linux-386.tar.gz 5bebebf12fb39db8be10f9758a92ce385013d07e629741421b09da88bd9fc0f1
kubernetes-client-linux-amd64.tar.gz b02ae110b3694562b195189c3cb8eca21095153d0cb5552360053304dee425f1
kubernetes-client-linux-arm64.tar.gz e6220b9e62856ad8345cb845c1365b3f177ee22d6f9718f11a1f373d7a70fd21
kubernetes-client-linux-arm.tar.gz e35c62a3781841898c91724af136fbb35fd99cf15ca5ec947c1a4bc2f6e4a73d
kubernetes-client-linux-ppc64le.tar.gz 7b02c25a764bd367e9931006def88d3fc03cf9e846cce2e77cfbc95f0e206433
kubernetes-client-linux-s390x.tar.gz ab6ba1bf43dd28c776a8cc5cae44413c45a7405f2996c277aba5ee3f6f73e305
kubernetes-client-windows-386.tar.gz eb1516db15807111ef03547b0104dcb89a310481ef8f867a65f3c57f20f56e30
kubernetes-client-windows-amd64.tar.gz 525e599a2846fe166a5f1eb14483edee9d6b866aa096e16896f6544afad31768

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz bb0a37bb1fefa735ec1eb651fec60c22b180c9bca1bd5e0317e1bcdbf4aa0819
kubernetes-server-linux-arm64.tar.gz 68fd804bd1f4d944a25112a67ef8b1cbae55051b110134850715b6f51f93f40c
kubernetes-server-linux-arm.tar.gz 822161bee3e8b3b64bb7cea297264729b3cc6d6a008c86f16b4aef16cde5b0de
kubernetes-server-linux-ppc64le.tar.gz 9354336df2694427e3d6bc9b0b1fe286f3f9a7f6ef8f239bd6319b4af1c02162
kubernetes-server-linux-s390x.tar.gz d4a87e3713f190a4cc7db1f43a6105c3c95e1eb8de45ae269b9bd1ecd52296ce

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz dc7c5865041008fcfdad050380fb33c23a361f7a1f4fbce78b164e2906a1b7f9
kubernetes-node-linux-arm64.tar.gz d572cec5ec679e5543e9ee5e2529a51bb8d5ca5f3773e4218c5491a0bd77b7a4
kubernetes-node-linux-arm.tar.gz 4b0fae35ed01ca66fb0f82ea2ea7f804378f592d0c15425dc3934f4b7b6f19a8
kubernetes-node-linux-ppc64le.tar.gz d5684a2d1a640e7b0fdf82a3faa0edef2b20e50a83ff6baea461699b0d74b583
kubernetes-node-linux-s390x.tar.gz bb444cc79035044cfb58cbe3d7bccd7998522dcf6d993441cf29fd03c249897c
kubernetes-node-windows-amd64.tar.gz 9b54e823c504601193b5ae2d37cb1d297ae9b5acfa1497b6f530a835071a7b6d

Changelog since v1.7.0-alpha.4

Action Required

  • The following alpha API groups were unintentionally enabled by default in previous releases, and will no longer be enabled by default in v1.8: (#47690, @caesarxuchao)
    • rbac.authorization.k8s.io/v1alpha1
    • settings.k8s.io/v1alpha1
    • If you wish to continue using them in v1.8, please enable them explicitly using the --runtime-config flag of the apiserver (for example, --runtime-config="rbac.authorization.k8s.io/v1alpha1,settings.k8s.io/v1alpha1")
  • Paths containing backsteps (for example, "../bar") are no longer allowed in hostPath volume paths, or in volumeMount subpaths (#47290, @jhorwit2)
  • Azure: Change container permissions to private for provisioned volumes. If you have existing Azure volumes that were created by Kubernetes v1.6.0-v1.6.5, you should change the permissions on them manually. (#47605, @brendandburns)
  • New and upgraded 1.7 GCE/GKE clusters no longer have an RBAC ClusterRoleBinding that grants the cluster-admin ClusterRole to the default service account in the kube-system namespace. (#46750, @cjcullen)
    • If this permission is still desired, run the following command to explicitly grant it, either before or after upgrading to 1.7:
    • kubectl create clusterrolebinding kube-system-default --serviceaccount=kube-system:default --clusterrole=cluster-admin
  • kube-apiserver: a new authorization mode (--authorization-mode=Node) authorizes nodes to access secrets, configmaps, persistent volume claims and persistent volumes related to their pods. (#46076, @liggitt) * Nodes must use client credentials that place them in the system:nodes group with a username of system:node:<nodeName> in order to be authorized by the node authorizer (the credentials obtained by the kubelet via TLS bootstrapping satisfy these requirements) * When used in combination with the RBAC authorization mode (--authorization-mode=Node,RBAC), the system:node role is no longer automatically granted to the system:nodes group.
  • kube-controller-manager has dropped support for the --insecure-experimental-approve-all-kubelet-csrs-for-group flag. Instead, the csrapproving controller uses authorization checks to determine whether to approve certificate signing requests: (#45619, @mikedanese) * requests for a TLS client certificate for any node are approved if the CSR creator has create permission on the certificatesigningrequests resource and nodeclient subresource in the certificates.k8s.io API group * requests from a node for a TLS client certificate for itself are approved if the CSR creator has create permission on the certificatesigningrequests resource and the selfnodeclient subresource in the certificates.k8s.io API group * requests from a node for a TLS serving certificate for itself are approved if the CSR creator has create permission on the certificatesigningrequests resource and the selfnodeserver subresource in the certificates.k8s.io API group
  • Support updating storageclasses in etcd to storage.k8s.io/v1. You must do this prior to upgrading to 1.8. (#46116, @ncdc)
  • The namespace API object no longer supports the deletecollection operation. (#46407, @liggitt)
  • NetworkPolicy has been moved from extensions/v1beta1 to the new (#39164, @danwinship) networking.k8s.io/v1 API group. The structure remains unchanged from the beta1 API. The net.beta.kubernetes.io/network-policy annotation on Namespaces to opt in to isolation has been removed. Instead, isolation is now determined at a per-pod level, with pods being isolated if there is any NetworkPolicy whose spec.podSelector targets them. Pods that are targeted by NetworkPolicies accept traffic that is accepted by any of the NetworkPolicies (and nothing else), and pods that are not targeted by any NetworkPolicy accept all traffic by default. Action Required: When upgrading to Kubernetes 1.7 (and a network plugin that supports the new NetworkPolicy v1 semantics), to ensure full behavioral compatibility with v1beta1:

    1. In Namespaces that previously had the "DefaultDeny" annotation, you can create equivalent v1 semantics by creating a NetworkPolicy that matches all pods but does not allow any traffic:

          kind: NetworkPolicy
    apiVersion: networking.k8s.io/v1
    metadata:
      name: default-deny
    spec:
      podSelector:

      This will ensure that pods that aren't matched by any other NetworkPolicy will continue to be fully-isolated, as they were before.

    2. In Namespaces that previously did not have the "DefaultDeny" annotation, you should delete any existing NetworkPolicy objects. These would have had no effect before, but with v1 semantics they might cause some traffic to be blocked that you didn't intend to be blocked.

Other notable changes

  • kubectl logs with label selector supports specifying a container name (#44282, @derekwaynecarr)
  • Adds an approval work flow to the the certificate approver that will approve certificate signing requests from kubelets that meet all the criteria of kubelet server certificates. (#46884, @jcbsmpsn)
  • AWS: Maintain a cache of all instances, to fix problem with > 200 nodes with ELBs (#47410, @justinsb)
  • Bump GLBC version to 0.9.5 - fixes loss of manually modified GCLB health check settings upon upgrade from pre-1.6.4 to either 1.6.4 or 1.6.5. (#47567, @nicksardo)
  • Update cluster-proportional-autoscaler, metadata-proxy, and fluentd-gcp addons with fixes for CVE-2016-4448, CVE-2016-8859, CVE-2016-9841, CVE-2016-9843, and CVE-2017-9526. (#47545, @ixdy)
  • AWS: Batch DescribeInstance calls with nodeNames to 150 limit, to stay within AWS filter limits. (#47516, @gnufied)
  • AWS: Process disk attachments even with duplicate NodeNames (#47406, @justinsb)
  • kubefed will now configure NodeInternalIP as the federation API server endpoint when NodeExternalIP is unavailable for federation API servers exposed as NodePort services (#46960, @lukaszo)
  • PodSecurityPolicy now recognizes pods that specify runAsNonRoot: false in their security context and does not overwrite the specified value (#47073, @Q-Lee)
  • Bump GLBC version to 0.9.4 (#47468, @nicksardo)
  • Stackdriver Logging deployment exposes metrics on node port 31337 when enabled. (#47402, @crassirostris)
  • Update to kube-addon-manager:v6.4-beta.2: kubectl v1.6.4 and refreshed base images (#47389, @ixdy)
  • Enable iptables -w in kubeadm selfhosted (#46372, @cmluciano)
  • Azure plugin for client auth (#43987, @cosmincojocar)
  • Fix dynamic provisioning of PVs with inaccurate AccessModes by refusing to provision when PVCs ask for AccessModes that can't be satisfied by the PVs' underlying volume plugin (#47274, @wongma7)
  • AWS: Avoid spurious ELB listener recreation - ignore case when matching protocol (#47391, @justinsb)
  • gce kube-up: The Node authorization mode and NodeRestriction admission controller are now enabled (#46796, @mikedanese)
  • update gophercloud/gophercloud dependency for reauthentication fixes (#45545, @stuart-warren)
  • fix sync loop health check with separating runtime errors (#47124, @andyxning)
  • servicecontroller: Fix node selection logic on initial LB creation (#45773, @justinsb)
  • Fix iSCSI iSER mounting. (#47281, @mtanino)
  • StorageOS Volume Driver (#42156, @croomes)
    • StorageOS can be used as a storage provider for Kubernetes. With StorageOS, capacity from local or attached storage is pooled across the cluster, providing converged infrastructure for cloud-native applications.
  • CRI has been moved to package pkg/kubelet/apis/cri/v1alpha1/runtime. (#47113, @feiskyer)
  • Make gcp auth provider not to override the Auth header if it's already exits (#45575, @wanghaoran1988)
  • Allow pods to opt out of PodPreset mutation via an annotation on the pod. (#44965, @jpeeler)
  • Add Traditional Chinese translation for kubectl (#46559, @warmchang)
  • Remove Initializers from admission-control in kubernetes-master charm for pre-1.7 (#46987, @Cynerva)
  • Added state guards to the idle_status messaging in the kubernetes-master charm to make deployment faster on initial deployment. (#47183, @chuckbutler)
  • Bump up Node Problem Detector version to v0.4.0, which added support of parsing log from /dev/kmsg and ABRT. (#46743, @Random-Liu)
  • kubeadm: Enable the Node Authorizer/Admission plugin in v1.7 (#46879, @luxas)
  • Deprecated Binding objects in 1.7. (#47041, @k82cn)
  • Add secretbox and AES-CBC encryption modes to at rest encryption. AES-CBC is considered superior to AES-GCM because it is resistant to nonce-reuse attacks, and secretbox uses Poly1305 and XSalsa20. (#46916, @smarterclayton)
  • The HorizontalPodAutoscaler controller will now only send updates when it has new status information, reducing the number of writes caused by the controller. (#47078, @DirectXMan12)
  • gpusInUse info error when kubelet restarts (#46087, @tianshapjq)
  • kubeadm: Modifications to cluster-internal resources installed by kubeadm will be overwritten when upgrading from v1.6 to v1.7. (#47081, @luxas)
  • Added exponential backoff to Azure cloudprovider (#46660, @jackfrancis)
  • fixed HostAlias in PodSpec to allow foo.bar hostnames instead of just foo DNS labels. (#46809, @rickypai)
  • Implements rolling update for StatefulSets. Updates can be performed using the RollingUpdate, Paritioned, or OnDelete strategies. OnDelete implements the manual behavior from 1.6. status now tracks (#46669, @kow3ns)
    • replicas, readyReplicas, currentReplicas, and updatedReplicas. The semantics of replicas is now consistent with DaemonSet and ReplicaSet, and readyReplicas has the semantics that replicas did prior to this release.
  • Add Japanese translation for kubectl (#46756, @girikuncoro)
  • federation: Add admission controller for policy-based placement (#44786, @tsandall)
  • Get command uses OpenAPI schema to enhance display for a resource if run with flag 'use-openapi-print-columns'. (#46235, @droot)
    • An example command:
    • kubectl get pods --use-openapi-print-columns
  • add gzip compression to GET and LIST requests (#45666, @ilackarms)
  • Fix the bug where container cannot run as root when SecurityContext.RunAsNonRoot is false. (#47009, @yujuhong)
  • Fixes a bug with cAdvisorPort in the KubeletConfiguration that prevented setting it to 0, which is in fact a valid option, as noted in issue #11710. (#46876, @mtaufen)
  • Stackdriver cluster logging now deploys a new component to export Kubernetes events. (#46700, @crassirostris)
  • Alpha feature: allows users to set storage limit to isolate EmptyDir volumes. It enforces the limit by evicting pods that exceed their storage limits (#45686, @jingxu97)
  • Adds the Categories []string field to API resources, which represents the list of group aliases (e.g. "all") that every resource belongs to. (#43338, @fabianofranz)
  • Promote kubelet tls bootstrap to beta. Add a non-experimental flag to use it and deprecate the old flag. (#46799, @mikedanese)
  • Fix disk partition discovery for brtfs (#46816, @dashpole)
    • Add ZFS support
    • Add overlay2 storage driver support
  • Support creation of GCP Internal Load Balancers from Service objects (#46663, @nicksardo)
  • Introduces status conditions to the HorizontalPodAutoscaler in autoscaling/v2alpha1, indicating the current status of a given HorizontalPodAutoscaler, and why it is or is not scaling. (#46550, @DirectXMan12)
  • Support OpenAPI spec aggregation for kube-aggregator (#46734, @mbohlool)
  • Implement kubectl rollout undo and history for DaemonSet (#46144, @janetkuo)
  • Respect PDBs during node upgrades and add test coverage to the ServiceTest upgrade test. (#45748, @mml)
  • Disk Pressure triggers the deletion of terminated containers on the node. (#45896, @dashpole)
  • Add the alpha.image-policy.k8s.io/failed-open=true annotation when the image policy webhook encounters an error and fails open. (#46264, @Q-Lee)
  • Enable kubelet csr bootstrap in GCE/GKE (#40760, @mikedanese)
  • Implement Daemonset history (#45924, @janetkuo)
  • When switching from the service.beta.kubernetes.io/external-traffic annotation to the new (#46716, @thockin)
    • externalTrafficPolicy field, the values chnag as follows: * "OnlyLocal" becomes "Local" * "Global" becomes "Cluster".
  • Fix kubelet reset liveness probe failure count across pod restart boundaries (#46371, @sjenning)
  • The gce metadata server can be hidden behind a proxy, hiding the kubelet's token. (#45565, @Q-Lee)
  • AWS: Allow configuration of a single security group for ELBs (#45500, @nbutton23)
  • Allow remote admission controllers to be dynamically added and removed by administrators. External admission controllers make an HTTP POST containing details of the requested action which the service can approve or reject. (#46388, @lavalamp)
  • iscsi storage plugin: Fix dangling session when using multiple target portal addresses. (#46239, @mtanino)
  • Duplicate recurring Events now include the latest event's Message string (#46034, @kensimon)
  • With --feature-gates=RotateKubeletClientCertificate=true set, the kubelet will (#41912, @jcbsmpsn)
    • request a client certificate from the API server during the boot cycle and pause
    • waiting for the request to be satisfied. It will continually refresh the certificate
    • as the certificates expiration approaches.
  • The Kubernetes API supports retrieving tabular output for API resources via a new mime-type application/json;as=Table;v=v1alpha1;g=meta.k8s.io. The returned object (if the server supports it) will be of type meta.k8s.io/v1alpha1 with Table, and contain column and row information related to the resource. Each row will contain information about the resource - by default it will be the object metadata, but callers can add the ?includeObject=Object query parameter and receive the full object. In the future kubectl will use this to retrieve the results of kubectl get. (#40848, @smarterclayton)
  • This change add nonResourceURL to kubectl auth cani (#46432, @CaoShuFeng)
  • Webhook added to the API server which omits structured audit log events. (#45919, @ericchiang)
  • By default, --low-diskspace-threshold-mb is not set, and --eviction-hard includes "nodefs.available<10%,nodefs.inodesFree<5%" (#46448, @dashpole)
  • kubectl edit and kubectl apply will keep the ordering of elements in merged lists (#45980, @mengqiy)
  • [Federation][kubefed]: Use StorageClassName for etcd pvc (#46323, @marun)
  • Restrict active deadline seconds max allowed value to be maximum uint32 (#46640, @derekwaynecarr)
  • Implement kubectl get controllerrevisions (#46655, @janetkuo)
  • Local storage plugin (#44897, @msau42)
  • With --feature-gates=RotateKubeletServerCertificate=true set, the kubelet will (#45059, @jcbsmpsn)
    • request a server certificate from the API server during the boot cycle and pause
    • waiting for the request to be satisfied. It will continually refresh the certificate as
    • the certificates expiration approaches.
  • Allow PSP's to specify a whitelist of allowed paths for host volume based on path prefixes (#43946, @jhorwit2)
  • Add kubectl config rename-context (#46114, @arthur0)
  • Fix AWS EBS volumes not getting detached from node if routine to verify volumes are attached runs while the node is down (#46463, @wongma7)
  • Move hardPodAffinitySymmetricWeight to scheduler policy config (#44159, @wanghaoran1988)
  • AWS: support node port health check (#43585, @foolusion)
  • Add generic Toleration for NoExecute Taints to NodeProblemDetector (#45883, @gmarek)
  • support replaceKeys patch strategy and directive for strategic merge patch (#44597, @mengqiy)
  • Augment CRI to support retrieving container stats from the runtime. (#45614, @yujuhong)
  • Prevent kubelet from setting allocatable < 0 for a resource upon initial creation. (#46516, @derekwaynecarr)
  • add --non-resource-url to kubectl create clusterrole (#45809, @CaoShuFeng)
  • Add kubectl apply edit-last-applied subcommand (#42256, @shiywang)
  • Adding admissionregistration API group which enables dynamic registration of initializers and external admission webhooks. It is an alpha feature. (#46294, @caesarxuchao)
  • Fix log spam due to unnecessary status update when node is deleted. (#45923, @verult)
  • GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8. This means that clusters can (#46473, @thockin)
    • be created in 192.168.0.0./16 and 172.16.0.0/12 while preserving the container IPs (which would be lost before).
  • set selector and set subject no longer print "running in local/dry-run mode..." at the top, so their output can be piped as valid yaml or json (#46507, @bboreham)
  • ControllerRevision type added for StatefulSet and DaemonSet history. (#45867, @kow3ns)
  • Bump Go version to 1.8.3 (#46429, @wojtek-t)
  • Upgrade Elasticsearch Addon to v5.4.0 (#45589, @it-svit)
  • PodDisruptionBudget now uses ControllerRef to decide which controller owns a given Pod, so it doesn't get confused by controllers with overlapping selectors. (#45003, @krmayankk)
  • aws: Support for ELB tagging by users (#45932, @lpabon)
  • Portworx volume driver no longer has to run on the master. (#45518, @harsh-px)
  • kube-proxy: ratelimit runs of iptables by sync-period flags (#46266, @thockin)
  • Deployments are updated to use (1) a more stable hashing algorithm (fnv) than the previous one (adler) and (2) a hashing collision avoidance mechanism that will ensure new rollouts will not block on hashing collisions anymore. (#44774, @kargakis)
  • The Prometheus metrics for the kube-apiserver for tracking incoming API requests and latencies now return the subresource label for correctly attributing the type of API call. (#46354, @smarterclayton)
  • Add Simplified Chinese translation for kubectl (#45573, @shiywang)
  • The --namespace flag is now honored for in-cluster clients that have an empty configuration. (#46299, @ncdc)
  • Fix init container status reporting when active deadline is exceeded. (#46305, @sjenning)
  • Improves performance of Cinder volume attach/detach operations (#41785, @jamiehannaford)
  • GCE and AWS dynamic provisioners extension: admins can configure zone(s) in which a persistent volume shall be created. (#38505, @pospispa)
  • Break the 'certificatesigningrequests' controller into a 'csrapprover' controller and 'csrsigner' controller. (#45514, @mikedanese)
  • Modifies kubefed to create and the federation controller manager to use credentials associated with a service account rather than the user's credentials. (#42042, @perotinus)
  • Adds a MaxUnavailable field to PodDisruptionBudget (#45587, @foxish)
  • The behavior of some watch calls to the server when filtering on fields was incorrect. If watching objects with a filter, when an update was made that no longer matched the filter a DELETE event was correctly sent. However, the object that was returned by that delete was not the (correct) version before the update, but instead, the newer version. That meant the new object was not matched by the filter. This was a regression from behavior between cached watches on the server side and uncached watches, and thus broke downstream API clients. (#46223, @smarterclayton)
  • vSphere cloud provider: vSphere Storage policy Support for dynamic volume provisioning (#46176, @BaluDontu)
  • Add support for emitting metrics from openstack cloudprovider about storage operations. (#46008, @NickrenREN)
  • 'kubefed init' now supports overriding the default etcd image name with the --etcd-image parameter. (#46247, @marun)
  • remove the elasticsearch template (#45952, @harryge00)
  • Adds the CustomResourceDefinition (crd) types to the kube-apiserver. These are the successors to ThirdPartyResource. See https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/thirdpartyresources.md for more details. (#46055, @deads2k)
  • StatefulSets now include an alpha scaling feature accessible by setting the spec.podManagementPolicy field to Parallel. The controller will not wait for pods to be ready before adding the other pods, and will replace deleted pods as needed. Since parallel scaling creates pods out of order, you cannot depend on predictable membership changes within your set. (#44899, @smarterclayton)
  • fix kubelet event recording for selected events. (#46246, @derekwaynecarr)
  • Moved qos to api.helpers. (#44906, @k82cn)
  • Kubelet PLEG updates the relist timestamp only after successfully relisting. (#45496, @andyxning)
  • OpenAPI spec is now available in protobuf binary and gzip format (with ETag support) (#45836, @mbohlool)
  • Added support to a hierarchy of kubectl plugins (a tree of plugins as children of other plugins). (#45981, @fabianofranz)
    • Added exported env vars to kubectl plugins so that plugin developers have access to global flags, namespace, the plugin descriptor and the full path to the caller binary.
  • Ignored mirror pods in PodPreset admission plugin. (#45958, @k82cn)
  • Don't try to attach volume to new node if it is already attached to another node and the volume does not support multi-attach. (#45346, @codablock)
  • The Calico version included in kube-up for GCE has been updated to v2.2. (#38169, @caseydavenport)
  • Kubelet: Fix image garbage collector attempting to remove in-use images. (#46121, @Random-Liu)
  • Add ip-masq-agent addon to the addons folder which is used in GCE if --non-masquerade-cidr is set to 0/0 (#46038, @dnardo)
  • Fix serialization of EnforceNodeAllocatable (#44606, @ivan4th)
  • Add --write-config-to flag to kube-proxy to allow users to write the default configuration settings to a file. (#45908, @ncdc)
  • The NodeRestriction admission plugin limits the Node and Pod objects a kubelet can modify. In order to be limited by this admission plugin, kubelets must use credentials in the system:nodes group, with a username in the form system:node:<nodeName>. Such kubelets will only be allowed to modify their own Node API object, and only modify Pod API objects that are bound to their node. (#45929, @liggitt)
  • vSphere cloud provider: Report same Node IP as both internal and external. (#45201, @abrarshivani)
  • The options passed to a flexvolume plugin's mount command now contains the pod name (kubernetes.io/pod.name), namespace (kubernetes.io/pod.namespace), uid (kubernetes.io/pod.uid), and service account name (kubernetes.io/serviceAccount.name). (#39488, @liggitt)

v1.7.0-beta.2

Documentation & Examples

Downloads for v1.7.0-beta.2

filename sha256 hash
kubernetes.tar.gz 40814fcc343ee49df6a999165486714b5e970d90a368332c8e233a5741306a4c
kubernetes-src.tar.gz 864561a13af5869722276eb0f2d7c0c3bb8946c4ea23551b6a8a68027737cf1b

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz f4802f28767b55b0b29251485482e4db06dc15b257d9e9c8917d47a8531ebc20
kubernetes-client-darwin-amd64.tar.gz 0a9bb88dec66390e428f499046b35a9e3fbb253d1357006821240f3854fd391e
kubernetes-client-linux-386.tar.gz fbf5c1c9b0d9bfa987936539c8635d809becf2ab447187f6e908ad3d5acebdc5
kubernetes-client-linux-amd64.tar.gz 6b56b70519093c87a6a86543bcd137d8bea7b8ae172fdaa2914793baf47883eb
kubernetes-client-linux-arm64.tar.gz ff075b68d0dbbfd04788772d39299f16ee4c1a0f8ff175ed697afca206574707
kubernetes-client-linux-arm.tar.gz 81fec317664151ae318eca49436c9273e106ec869267b453c377544446d865e8
kubernetes-client-linux-ppc64le.tar.gz 91ee08c0209b767a576164eb6b44450f12ef29dedbca78b3daa447c6516b42fb
kubernetes-client-linux-s390x.tar.gz 28868e4bdd72861c87dd6bce4218fe56e578dd5998cab2da56bde0335904a26b
kubernetes-client-windows-386.tar.gz 779e7d864d762af4b039e511e14362426d8e60491a02f5ef571092aac9bc2b22
kubernetes-client-windows-amd64.tar.gz d35a306cb041026625335a330b4edffa8babec8e0b2d90b170ab8f318af87ff6

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 27f71259e3a7e819a6f5ffcf8ad63827f09e928173402e85690ec6943ef3a2fe
kubernetes-server-linux-arm64.tar.gz c9e331c452902293ea00e89ea1944d144c9200b97f033b56f469636c8c7b718d
kubernetes-server-linux-arm.tar.gz bf3e1b45982ef0a25483bd212553570fa3a1cda49f9a097a9796400fbb70e810
kubernetes-server-linux-ppc64le.tar.gz 90da52c556b0634241d2da84347537c49b16bfcb0d226afb4213f4ea5a9b80ec
kubernetes-server-linux-s390x.tar.gz 0c4243bae5310764508dba649d8440afbbd11fde2cac3ce651872a9f22694d45

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz d6c9d9642c31150b68b8da5143384bd4eee0617e16833d9bbafff94f25a76161
kubernetes-node-linux-arm64.tar.gz b91b52b5708539710817a9378295ca4c19afbb75016aa2908c00678709d641ec
kubernetes-node-linux-arm.tar.gz 3b3421abb90985773745a68159df338eb12c47645434a56c3806dd48e92cb023
kubernetes-node-linux-ppc64le.tar.gz a6b843af1284252636cf31a9523ff825c23dee5d57da24bf970031c846242ce5
kubernetes-node-linux-s390x.tar.gz 43830c0509e9477534661292fc3f4a100250adbee316028c5e869644d75aa478
kubernetes-node-windows-amd64.tar.gz 0ea1ee0dfc483248b3d20177bf023375289214ba153a6466a68764cf02931b52

Changelog since v1.7.0-beta.1

Action Required

  • New and upgraded 1.7 GCE/GKE clusters no longer have an RBAC ClusterRoleBinding that grants the cluster-admin ClusterRole to the default service account in the kube-system namespace. (#46750, @cjcullen)
    • If this permission is still desired, run the following command to explicitly grant it, either before or after upgrading to 1.7:
    • kubectl create clusterrolebinding kube-system-default --serviceaccount=kube-system:default --clusterrole=cluster-admin

Other notable changes

  • AWS: Process disk attachments even with duplicate NodeNames (#47406, @justinsb)
  • kubefed will now configure NodeInternalIP as the federation API server endpoint when NodeExternalIP is unavailable for federation API servers exposed as NodePort services (#46960, @lukaszo)
  • PodSecurityPolicy now recognizes pods that specify runAsNonRoot: false in their security context and does not overwrite the specified value (#47073, @Q-Lee)
  • Bump GLBC version to 0.9.4 (#47468, @nicksardo)
  • Stackdriver Logging deployment exposes metrics on node port 31337 when enabled. (#47402, @crassirostris)
  • Update to kube-addon-manager:v6.4-beta.2: kubectl v1.6.4 and refreshed base images (#47389, @ixdy)
  • Enable iptables -w in kubeadm selfhosted (#46372, @cmluciano)
  • Azure plugin for client auth (#43987, @cosmincojocar)
  • Fix dynamic provisioning of PVs with inaccurate AccessModes by refusing to provision when PVCs ask for AccessModes that can't be satisfied by the PVs' underlying volume plugin (#47274, @wongma7)
  • AWS: Avoid spurious ELB listener recreation - ignore case when matching protocol (#47391, @justinsb)
  • gce kube-up: The Node authorization mode and NodeRestriction admission controller are now enabled (#46796, @mikedanese)
  • update gophercloud/gophercloud dependency for reauthentication fixes (#45545, @stuart-warren)
  • fix sync loop health check with separating runtime errors (#47124, @andyxning)
  • servicecontroller: Fix node selection logic on initial LB creation (#45773, @justinsb)
  • Fix iSCSI iSER mounting. (#47281, @mtanino)
  • StorageOS Volume Driver (#42156, @croomes)
    • StorageOS can be used as a storage provider for Kubernetes. With StorageOS, capacity from local or attached storage is pooled across the cluster, providing converged infrastructure for cloud-native applications.
  • CRI has been moved to package pkg/kubelet/apis/cri/v1alpha1/runtime. (#47113, @feiskyer)
  • Make gcp auth provider not to override the Auth header if it's already exits (#45575, @wanghaoran1988)
  • Allow pods to opt out of PodPreset mutation via an annotation on the pod. (#44965, @jpeeler)
  • Add Traditional Chinese translation for kubectl (#46559, @warmchang)
  • Remove Initializers from admission-control in kubernetes-master charm for pre-1.7 (#46987, @Cynerva)
  • Added state guards to the idle_status messaging in the kubernetes-master charm to make deployment faster on initial deployment. (#47183, @chuckbutler)
  • Bump up Node Problem Detector version to v0.4.0, which added support of parsing log from /dev/kmsg and ABRT. (#46743, @Random-Liu)
  • kubeadm: Enable the Node Authorizer/Admission plugin in v1.7 (#46879, @luxas)
  • Deprecated Binding objects in 1.7. (#47041, @k82cn)
  • Add secretbox and AES-CBC encryption modes to at rest encryption. AES-CBC is considered superior to AES-GCM because it is resistant to nonce-reuse attacks, and secretbox uses Poly1305 and XSalsa20. (#46916, @smarterclayton)
  • The HorizontalPodAutoscaler controller will now only send updates when it has new status information, reducing the number of writes caused by the controller. (#47078, @DirectXMan12)
  • gpusInUse info error when kubelet restarts (#46087, @tianshapjq)
  • kubeadm: Modifications to cluster-internal resources installed by kubeadm will be overwritten when upgrading from v1.6 to v1.7. (#47081, @luxas)

v1.7.0-beta.1

Documentation & Examples

Downloads for v1.7.0-beta.1

filename sha256 hash
kubernetes.tar.gz e2fe83b443544dbb17c5ce481b6b3dcc9e62fbc573b5e270939282a31a910543
kubernetes-src.tar.gz 321df2749cf4687ec62549bc532eb9e17f159c26f4748732746bce1a4d41e77f

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 308cc980ee14aca49235569302e188dac08879f9236ed405884dada3b4984f44
kubernetes-client-darwin-amd64.tar.gz 791bc498c2bfd858497d7257500954088bec19dbfeb9809e7c09983fba04f2a6
kubernetes-client-linux-386.tar.gz d9ecac5521cedcc6a94d6b07a57f58f15bb25e43bd766911d2f16cf491a985ac
kubernetes-client-linux-amd64.tar.gz 33e800a541a1ce7a89e26dcfaa3650c06cf7239ae22272da944fb0d1288380e1
kubernetes-client-linux-arm64.tar.gz 8b245f239ebbede700adac1380f63a71025b8e1f7010e97665c77a0af84effaf
kubernetes-client-linux-arm.tar.gz 730aeeda02e500cc9300c7a555d4e0a1221b7cf182e95e6a9fbe16d90bbbc762
kubernetes-client-linux-ppc64le.tar.gz 7c97431547f40e9dece33e602993c19eab53306e64d16bf44c5e881ba52e5ab4
kubernetes-client-linux-s390x.tar.gz 8e95fcc59d9741d67789a8e6370a545c273206f7ff07e19154fe8f0126754571
kubernetes-client-windows-386.tar.gz 8bcd3ed7b6081e2a68e5a68cca71632104fef57e96ec5c16191028d113d7e54b
kubernetes-client-windows-amd64.tar.gz 1b32e418255f0c6b122b7aba5df9798d37c44c594ac36915ef081076d7464d52

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 2df51991734490871a6d6933ad15e785d543ecae2b06563fc92eb97a019f7eea
kubernetes-server-linux-arm64.tar.gz 8c97a97249d644fffbdcd87867e516f1029a3609979379ac4c6ea077f5b5b9b7
kubernetes-server-linux-arm.tar.gz 8e98741d19bd4a51ad275ca6bf793e0c305b75f2ac6569fb553b6cb62daa943e
kubernetes-server-linux-ppc64le.tar.gz 71398347d2aae5345431f4e4c2bedcbdf5c3f406952ce254ef0ae9e4f55355a1
kubernetes-server-linux-s390x.tar.gz 1f4fcbc1a70692a57accdab420ad2411acd4672f546473e977ef1c09357418bb

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz b84d291bc3e35912b4da067b3bf328dded87f875dc479b994408a161867c80e5
kubernetes-node-linux-arm64.tar.gz 2d306f1e757c49f9358791d7b0176e29f1aa32b6e6d70369b0e40c11a18b2df0
kubernetes-node-linux-arm.tar.gz 3957988bd800514a67ee1cf9e21f99f7e0797810ef3c22fd1604f0b6d1d6dad4
kubernetes-node-linux-ppc64le.tar.gz f7b3c9c01a25e6afd31dafaeed1eb926f6aae741c0f0967cca2c12492e509fd0
kubernetes-node-linux-s390x.tar.gz de7db84acd32cd7d5b3ac0957cded289335e187539e5495899e05b4043974892
kubernetes-node-windows-amd64.tar.gz efbafcae12ee121cf3a507bba8e36ac43d23d8262dc1a575b85e546ff81030fb

Changelog since v1.7.0-alpha.4

Action Required

  • kube-apiserver: a new authorization mode (--authorization-mode=Node) authorizes nodes to access secrets, configmaps, persistent volume claims and persistent volumes related to their pods. (#46076, @liggitt) * Nodes must use client credentials that place them in the system:nodes group with a username of system:node:<nodeName> in order to be authorized by the node authorizer (the credentials obtained by the kubelet via TLS bootstrapping satisfy these requirements) * When used in combination with the RBAC authorization mode (--authorization-mode=Node,RBAC), the system:node role is no longer automatically granted to the system:nodes group.
  • kube-controller-manager has dropped support for the --insecure-experimental-approve-all-kubelet-csrs-for-group flag. Instead, the csrapproving controller uses authorization checks to determine whether to approve certificate signing requests: (#45619, @mikedanese) * requests for a TLS client certificate for any node are approved if the CSR creator has create permission on the certificatesigningrequests resource and nodeclient subresource in the certificates.k8s.io API group * requests from a node for a TLS client certificate for itself are approved if the CSR creator has create permission on the certificatesigningrequests resource and the selfnodeclient subresource in the certificates.k8s.io API group * requests from a node for a TLS serving certificate for itself are approved if the CSR creator has create permission on the certificatesigningrequests resource and the selfnodeserver subresource in the certificates.k8s.io API group
  • Support updating storageclasses in etcd to storage.k8s.io/v1. You must do this prior to upgrading to 1.8. (#46116, @ncdc)
  • The namespace API object no longer supports the deletecollection operation. (#46407, @liggitt)
  • NetworkPolicy has been moved from extensions/v1beta1 to the new (#39164, @danwinship) networking.k8s.io/v1 API group. The structure remains unchanged from the beta1 API. The net.beta.kubernetes.io/network-policy annotation on Namespaces to opt in to isolation has been removed. Instead, isolation is now determined at a per-pod level, with pods being isolated if there is any NetworkPolicy whose spec.podSelector targets them. Pods that are targeted by NetworkPolicies accept traffic that is accepted by any of the NetworkPolicies (and nothing else), and pods that are not targeted by any NetworkPolicy accept all traffic by default. Action Required: When upgrading to Kubernetes 1.7 (and a network plugin that supports the new NetworkPolicy v1 semantics), to ensure full behavioral compatibility with v1beta1:

    1. In Namespaces that previously had the "DefaultDeny" annotation, you can create equivalent v1 semantics by creating a NetworkPolicy that matches all pods but does not allow any traffic:

          kind: NetworkPolicy
    apiVersion: networking.k8s.io/v1
    metadata:
      name: default-deny
    spec:
      podSelector:

      This will ensure that pods that aren't matched by any other NetworkPolicy will continue to be fully-isolated, as they were before.

    2. In Namespaces that previously did not have the "DefaultDeny" annotation, you should delete any existing NetworkPolicy objects. These would have had no effect before, but with v1 semantics they might cause some traffic to be blocked that you didn't intend to be blocked.

Other notable changes

  • Added exponential backoff to Azure cloudprovider (#46660, @jackfrancis)
  • fixed HostAlias in PodSpec to allow foo.bar hostnames instead of just foo DNS labels. (#46809, @rickypai)
  • Implements rolling update for StatefulSets. Updates can be performed using the RollingUpdate, Paritioned, or OnDelete strategies. OnDelete implements the manual behavior from 1.6. status now tracks (#46669, @kow3ns)
    • replicas, readyReplicas, currentReplicas, and updatedReplicas. The semantics of replicas is now consistent with DaemonSet and ReplicaSet, and readyReplicas has the semantics that replicas did prior to this release.
  • Add Japanese translation for kubectl (#46756, @girikuncoro)
  • federation: Add admission controller for policy-based placement (#44786, @tsandall)
  • Get command uses OpenAPI schema to enhance display for a resource if run with flag 'use-openapi-print-columns'. (#46235, @droot)
    • An example command:
    • kubectl get pods --use-openapi-print-columns
  • add gzip compression to GET and LIST requests (#45666, @ilackarms)
  • Fix the bug where container cannot run as root when SecurityContext.RunAsNonRoot is false. (#47009, @yujuhong)
  • Fixes a bug with cAdvisorPort in the KubeletConfiguration that prevented setting it to 0, which is in fact a valid option, as noted in issue #11710. (#46876, @mtaufen)
  • Stackdriver cluster logging now deploys a new component to export Kubernetes events. (#46700, @crassirostris)
  • Alpha feature: allows users to set storage limit to isolate EmptyDir volumes. It enforces the limit by evicting pods that exceed their storage limits (#45686, @jingxu97)
  • Adds the Categories []string field to API resources, which represents the list of group aliases (e.g. "all") that every resource belongs to. (#43338, @fabianofranz)
  • Promote kubelet tls bootstrap to beta. Add a non-experimental flag to use it and deprecate the old flag. (#46799, @mikedanese)
  • Fix disk partition discovery for brtfs (#46816, @dashpole)
    • Add ZFS support
    • Add overlay2 storage driver support
  • Support creation of GCP Internal Load Balancers from Service objects (#46663, @nicksardo)
  • Introduces status conditions to the HorizontalPodAutoscaler in autoscaling/v2alpha1, indicating the current status of a given HorizontalPodAutoscaler, and why it is or is not scaling. (#46550, @DirectXMan12)
  • Support OpenAPI spec aggregation for kube-aggregator (#46734, @mbohlool)
  • Implement kubectl rollout undo and history for DaemonSet (#46144, @janetkuo)
  • Respect PDBs during node upgrades and add test coverage to the ServiceTest upgrade test. (#45748, @mml)
  • Disk Pressure triggers the deletion of terminated containers on the node. (#45896, @dashpole)
  • Add the alpha.image-policy.k8s.io/failed-open=true annotation when the image policy webhook encounters an error and fails open. (#46264, @Q-Lee)
  • Enable kubelet csr bootstrap in GCE/GKE (#40760, @mikedanese)
  • Implement Daemonset history (#45924, @janetkuo)
  • When switching from the service.beta.kubernetes.io/external-traffic annotation to the new (#46716, @thockin)
    • externalTrafficPolicy field, the values chnag as follows: * "OnlyLocal" becomes "Local" * "Global" becomes "Cluster".
  • Fix kubelet reset liveness probe failure count across pod restart boundaries (#46371, @sjenning)
  • The gce metadata server can be hidden behind a proxy, hiding the kubelet's token. (#45565, @Q-Lee)
  • AWS: Allow configuration of a single security group for ELBs (#45500, @nbutton23)
  • Allow remote admission controllers to be dynamically added and removed by administrators. External admission controllers make an HTTP POST containing details of the requested action which the service can approve or reject. (#46388, @lavalamp)
  • iscsi storage plugin: Fix dangling session when using multiple target portal addresses. (#46239, @mtanino)
  • Duplicate recurring Events now include the latest event's Message string (#46034, @kensimon)
  • With --feature-gates=RotateKubeletClientCertificate=true set, the kubelet will (#41912, @jcbsmpsn)
    • request a client certificate from the API server during the boot cycle and pause
    • waiting for the request to be satisfied. It will continually refresh the certificate
    • as the certificates expiration approaches.
  • The Kubernetes API supports retrieving tabular output for API resources via a new mime-type application/json;as=Table;v=v1alpha1;g=meta.k8s.io. The returned object (if the server supports it) will be of type meta.k8s.io/v1alpha1 with Table, and contain column and row information related to the resource. Each row will contain information about the resource - by default it will be the object metadata, but callers can add the ?includeObject=Object query parameter and receive the full object. In the future kubectl will use this to retrieve the results of kubectl get. (#40848, @smarterclayton)
  • This change add nonResourceURL to kubectl auth cani (#46432, @CaoShuFeng)
  • Webhook added to the API server which omits structured audit log events. (#45919, @ericchiang)
  • By default, --low-diskspace-threshold-mb is not set, and --eviction-hard includes "nodefs.available<10%,nodefs.inodesFree<5%" (#46448, @dashpole)
  • kubectl edit and kubectl apply will keep the ordering of elements in merged lists (#45980, @mengqiy)
  • [Federation][kubefed]: Use StorageClassName for etcd pvc (#46323, @marun)
  • Restrict active deadline seconds max allowed value to be maximum uint32 (#46640, @derekwaynecarr)
  • Implement kubectl get controllerrevisions (#46655, @janetkuo)
  • Local storage plugin (#44897, @msau42)
  • With --feature-gates=RotateKubeletServerCertificate=true set, the kubelet will (#45059, @jcbsmpsn)
    • request a server certificate from the API server during the boot cycle and pause
    • waiting for the request to be satisfied. It will continually refresh the certificate as
    • the certificates expiration approaches.
  • Allow PSP's to specify a whitelist of allowed paths for host volume based on path prefixes (#43946, @jhorwit2)
  • Add kubectl config rename-context (#46114, @arthur0)
  • Fix AWS EBS volumes not getting detached from node if routine to verify volumes are attached runs while the node is down (#46463, @wongma7)
  • Move hardPodAffinitySymmetricWeight to scheduler policy config (#44159, @wanghaoran1988)
  • AWS: support node port health check (#43585, @foolusion)
  • Add generic Toleration for NoExecute Taints to NodeProblemDetector (#45883, @gmarek)
  • support replaceKeys patch strategy and directive for strategic merge patch (#44597, @mengqiy)
  • Augment CRI to support retrieving container stats from the runtime. (#45614, @yujuhong)
  • Prevent kubelet from setting allocatable < 0 for a resource upon initial creation. (#46516, @derekwaynecarr)
  • add --non-resource-url to kubectl create clusterrole (#45809, @CaoShuFeng)
  • Add kubectl apply edit-last-applied subcommand (#42256, @shiywang)
  • Adding admissionregistration API group which enables dynamic registration of initializers and external admission webhooks. It is an alpha feature. (#46294, @caesarxuchao)
  • Fix log spam due to unnecessary status update when node is deleted. (#45923, @verult)
  • GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8. This means that clusters can (#46473, @thockin)
    • be created in 192.168.0.0./16 and 172.16.0.0/12 while preserving the container IPs (which would be lost before).
  • set selector and set subject no longer print "running in local/dry-run mode..." at the top, so their output can be piped as valid yaml or json (#46507, @bboreham)
  • ControllerRevision type added for StatefulSet and DaemonSet history. (#45867, @kow3ns)
  • Bump Go version to 1.8.3 (#46429, @wojtek-t)
  • Upgrade Elasticsearch Addon to v5.4.0 (#45589, @it-svit)
  • PodDisruptionBudget now uses ControllerRef to decide which controller owns a given Pod, so it doesn't get confused by controllers with overlapping selectors. (#45003, @krmayankk)
  • aws: Support for ELB tagging by users (#45932, @lpabon)
  • Portworx volume driver no longer has to run on the master. (#45518, @harsh-px)
  • kube-proxy: ratelimit runs of iptables by sync-period flags (#46266, @thockin)
  • Deployments are updated to use (1) a more stable hashing algorithm (fnv) than the previous one (adler) and (2) a hashing collision avoidance mechanism that will ensure new rollouts will not block on hashing collisions anymore. (#44774, @kargakis)
  • The Prometheus metrics for the kube-apiserver for tracking incoming API requests and latencies now return the subresource label for correctly attributing the type of API call. (#46354, @smarterclayton)
  • Add Simplified Chinese translation for kubectl (#45573, @shiywang)
  • The --namespace flag is now honored for in-cluster clients that have an empty configuration. (#46299, @ncdc)
  • Fix init container status reporting when active deadline is exceeded. (#46305, @sjenning)
  • Improves performance of Cinder volume attach/detach operations (#41785, @jamiehannaford)
  • GCE and AWS dynamic provisioners extension: admins can configure zone(s) in which a persistent volume shall be created. (#38505, @pospispa)
  • Break the 'certificatesigningrequests' controller into a 'csrapprover' controller and 'csrsigner' controller. (#45514, @mikedanese)
  • Modifies kubefed to create and the federation controller manager to use credentials associated with a service account rather than the user's credentials. (#42042, @perotinus)
  • Adds a MaxUnavailable field to PodDisruptionBudget (#45587, @foxish)
  • The behavior of some watch calls to the server when filtering on fields was incorrect. If watching objects with a filter, when an update was made that no longer matched the filter a DELETE event was correctly sent. However, the object that was returned by that delete was not the (correct) version before the update, but instead, the newer version. That meant the new object was not matched by the filter. This was a regression from behavior between cached watches on the server side and uncached watches, and thus broke downstream API clients. (#46223, @smarterclayton)
  • vSphere cloud provider: vSphere Storage policy Support for dynamic volume provisioning (#46176, @BaluDontu)
  • Add support for emitting metrics from openstack cloudprovider about storage operations. (#46008, @NickrenREN)
  • 'kubefed init' now supports overriding the default etcd image name with the --etcd-image parameter. (#46247, @marun)
  • remove the elasticsearch template (#45952, @harryge00)
  • Adds the CustomResourceDefinition (crd) types to the kube-apiserver. These are the successors to ThirdPartyResource. See https://github.com/kubernetes/community/blob/master/contributors/design-proposals/api-machinery/thirdpartyresources.md for more details. (#46055, @deads2k)
  • StatefulSets now include an alpha scaling feature accessible by setting the spec.podManagementPolicy field to Parallel. The controller will not wait for pods to be ready before adding the other pods, and will replace deleted pods as needed. Since parallel scaling creates pods out of order, you cannot depend on predictable membership changes within your set. (#44899, @smarterclayton)
  • fix kubelet event recording for selected events. (#46246, @derekwaynecarr)
  • Moved qos to api.helpers. (#44906, @k82cn)
  • Kubelet PLEG updates the relist timestamp only after successfully relisting. (#45496, @andyxning)
  • OpenAPI spec is now available in protobuf binary and gzip format (with ETag support) (#45836, @mbohlool)
  • Added support to a hierarchy of kubectl plugins (a tree of plugins as children of other plugins). (#45981, @fabianofranz)
    • Added exported env vars to kubectl plugins so that plugin developers have access to global flags, namespace, the plugin descriptor and the full path to the caller binary.
  • Ignored mirror pods in PodPreset admission plugin. (#45958, @k82cn)
  • Don't try to attach volume to new node if it is already attached to another node and the volume does not support multi-attach. (#45346, @codablock)
  • The Calico version included in kube-up for GCE has been updated to v2.2. (#38169, @caseydavenport)
  • Kubelet: Fix image garbage collector attempting to remove in-use images. (#46121, @Random-Liu)
  • Add ip-masq-agent addon to the addons folder which is used in GCE if --non-masquerade-cidr is set to 0/0 (#46038, @dnardo)
  • Fix serialization of EnforceNodeAllocatable (#44606, @ivan4th)
  • Add --write-config-to flag to kube-proxy to allow users to write the default configuration settings to a file. (#45908, @ncdc)
  • The NodeRestriction admission plugin limits the Node and Pod objects a kubelet can modify. In order to be limited by this admission plugin, kubelets must use credentials in the system:nodes group, with a username in the form system:node:<nodeName>. Such kubelets will only be allowed to modify their own Node API object, and only modify Pod API objects that are bound to their node. (#45929, @liggitt)
  • vSphere cloud provider: Report same Node IP as both internal and external. (#45201, @abrarshivani)
  • The options passed to a flexvolume plugin's mount command now contains the pod name (kubernetes.io/pod.name), namespace (kubernetes.io/pod.namespace), uid (kubernetes.io/pod.uid), and service account name (kubernetes.io/serviceAccount.name). (#39488, @liggitt)

v1.7.0-alpha.4

Documentation & Examples

Downloads for v1.7.0-alpha.4

filename sha256 hash
kubernetes.tar.gz 14ef2ce3c9348dce7e83aeb167be324da93b90dbb8016f2aecb097c982abf790
kubernetes-src.tar.gz faef422988e805a3970985eabff03ed88cfb95ad0d2223abe03011145016e5d0

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 077dc5637f42a35c316a5e1c3a38e09625971894a186dd7b1e60408c9a0ac4b8
kubernetes-client-darwin-amd64.tar.gz 8e43eb7d1969e82eeb17973e4f09e9fe44ff3430cd2c35170d72a631c460deeb
kubernetes-client-linux-386.tar.gz 6ddfdbcb25243901c965b1e009e26a90b1fd08d6483906e1235ef380f6f93c97
kubernetes-client-linux-amd64.tar.gz 3e7cdd8e0e4d67ff2a0ee2548a4c48a433f84a25384ee9d22c06f4eb2e6db6d7
kubernetes-client-linux-arm64.tar.gz 3970c88d2c36fcb43a64d4e889a3eb2cc298e893f6084b9a3c902879d777487d
kubernetes-client-linux-arm.tar.gz 156909c55feb06036afff72aa180bd20c14758690cd04c7d8867f49c968e6372
kubernetes-client-linux-ppc64le.tar.gz 601fe881a131ce7868fdecfb1439da94ab5a1f1d3700efe4b8319617ceb23d4e
kubernetes-client-linux-s390x.tar.gz 2ed3e74e6a972d9ed5b2206fa5e811663497082384f488eada9901e9a99929c7
kubernetes-client-windows-386.tar.gz 1aba520fe0bf620f0e77f697194dfd5e336e4a97e2af01f8b94b0f03dbb6299c
kubernetes-client-windows-amd64.tar.gz aaf4a42549ea1113915649e636612ea738ead383140d92944c80f3c0d5df8161

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 1389c798e7805ec26826c0d3b17ab0d4bd51e0db21cf2f5d4bda5e2b530a6bf1
kubernetes-server-linux-arm64.tar.gz ccb99da4b069e63695b3b1d8add9a173e21a0bcaf03d031014460092ec726fb4
kubernetes-server-linux-arm.tar.gz 6eb3fe27e5017ed834a309cba21342a8c1443486a75ec87611fa66649dd5926a
kubernetes-server-linux-ppc64le.tar.gz 9b5030b0205ccccfd08b832eec917853fee8bcd34b04033ba35f17698be4a32f
kubernetes-server-linux-s390x.tar.gz 36b692c221005b52c2a243ddfc16e41a7b157e10fee8662bcd8270280b3f0927

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz bba76ad441716f938df0fd8c23c48588d1f80603e39dcca1a29c8b3bbe8c1658
kubernetes-node-linux-arm64.tar.gz e3e729847a13fd41ee7f969aabb14d3a0f6f8523f6f079f77a618bf5d781fb9c
kubernetes-node-linux-arm.tar.gz 520f98f244dd35bb0d96072003548f8b3aacc1e7beb31b5bc527416f07af9d32
kubernetes-node-linux-ppc64le.tar.gz 686490ba55ea8c7569b3b506f898315c8b1b243de23733e0cd537e2db8e067cb
kubernetes-node-linux-s390x.tar.gz a36bb76b390007b271868987739c550c8ac4e856f218f67f2fd780309a2a522e
kubernetes-node-windows-amd64.tar.gz e78c5a32584d96ec177e38b445c053e40c358e0549b925981c118f4c23578261

Changelog since v1.7.0-alpha.3

Action Required

  • kubectl create role and kubectl create clusterrole no longer allow specifying multiple resource names as comma-separated arguments. Use repeated --resource-name arguments to specify multiple resource names. (#44950, @xilabao)

Other notable changes

  • avoid concrete examples for missingResourceError (#45582, @CaoShuFeng)
  • Fix DNS suffix search list support in Windows kube-proxy. (#45642, @JiangtianLi)
  • Fix the bug where StartedAt time is not reported for exited containers. (#45977, @yujuhong)
  • Update Dashboard version to 1.6.1 (#45953, @maciaszczykm)
  • Examples: fixed cassandra mirror detection that assumes an FTP site will always be presented (#45965, @pompomJuice)
  • Removes the deprecated kubelet flag --babysit-daemons (#44230, @mtaufen)
  • [Federation] Automate configuring nameserver in cluster-dns for CoreDNS provider (#42895, @shashidharatd)
  • Add an AEAD encrypting transformer for storing secrets encrypted at rest (#41939, @smarterclayton)
  • Update Minio example (#45444, @NitishT)
  • [Federation] Segregate DNS related code to separate controller (#45034, @shashidharatd)
  • API Registration is now in beta. (#45247, @mbohlool)
  • Allow kcm and scheduler to lock on ConfigMaps. (#45739, @timothysc)
  • kubelet config should actually ignore files starting with dots (#45111, @dwradcliffe)
  • Fix lint failures on kubernetes-e2e charm (#45832, @Cynerva)
  • Mirror pods must now indicate the nodeName they are bound to on creation. The mirror pod annotation is now treated as immutable and cannot be added to an existing pod, removed from a pod, or modified. (#45775, @liggitt)
  • Updating apiserver to return UID of the deleted resource. Clients can use this UID to verify that the resource was deleted or waiting for finalizers. (#45600, @nikhiljindal)
  • OwnerReferencesPermissionEnforcement admission plugin ignores pods/status. (#45747, @derekwaynecarr)
  • prevent pods/status from touching ownerreferences (#45826, @deads2k)
  • Fix lint errors in juju kubernetes master and e2e charms (#45494, @ktsakalozos)
  • Ensure that autoscaling/v1 is the preferred version for API discovery when autoscaling/v2alpha1 is enabled. (#45741, @DirectXMan12)
  • Promotes Source IP preservation for Virtual IPs to GA. (#41162, @MrHohn)
    • Two api fields are defined correspondingly:
      • Service.Spec.ExternalTrafficPolicy <- 'service.beta.kubernetes.io/external-traffic' annotation.
      • Service.Spec.HealthCheckNodePort <- 'service.beta.kubernetes.io/healthcheck-nodeport' annotation.
  • Fix pods failing to start if they specify a file as a volume subPath to mount. (#45623, @wongma7)
  • the resource quota controller was not adding quota to be resynced at proper interval (#45685, @derekwaynecarr)
  • Marks the Kubelet's --master-service-namespace flag deprecated (#44250, @mtaufen)
  • fluentd will tolerate all NoExecute Taints when run in gcp configuration. (#45715, @gmarek)
  • Added Group/Version/Kind and Action extension to OpenAPI Operations (#44787, @mbohlool)
  • Updates kube-dns to 1.14.2 (#45684, @bowei)
      • Support kube-master-url flag without kubeconfig
      • Fix concurrent R/Ws in dns.go
      • Fix confusing logging when initialize server
      • Fix printf in cmd/kube-dns/app/server.go
      • Fix version on startup and --version flag
      • Support specifying port number for nameserver in stubDomains
  • detach the volume when pod is terminated (#45286, @gnufied)
  • Don't append :443 to registry domain in the kubernetes-worker layer registry action (#45550, @jacekn)
  • vSphere cloud provider: Fix volume detach on node failure. (#45569, @divyenpatel)
  • Remove the deprecated --enable-cri flag. CRI is now the default, (#45194, @yujuhong)
    • and the only way to integrate with kubelet for the container runtimes.
  • AWS: Remove check that forces loadBalancerSourceRanges to be 0.0.0.0/0. (#38636, @dhawal55)
  • Fix erroneous FailedSync and FailedMount events being periodically and indefinitely posted on Pods after kubelet is restarted (#44781, @wongma7)
  • Kubernetes now shares a single PID namespace among all containers in a pod when running with docker >= 1.13.1. This means processes can now signal processes in other containers in a pod, but it also means that the kubectl exec {pod} kill 1 pattern will cause the pod to be restarted rather than a single container. (#45236, @verb)
  • azure: add support for UDP ports (#45523, @colemickens)
    • azure: fix support for multiple loadBalancerSourceRanges
    • azure: support the Service spec's sessionAffinity
  • The fix makes scheduling go routine waiting for cache (e.g. Pod) to be synced. (#45453, @k82cn)
  • vSphere cloud provider: Filter out IPV6 node addresses. (#45181, @BaluDontu)
  • Default behaviour in cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. (#44798, @zetaab)
  • A small clean up to remove unnecessary functions. (#45018, @ravisantoshgudimetla)
  • Removed old scheduler constructor. (#45472, @k82cn)
  • vSphere cloud provider: Fix fetching of VM UUID on Ubuntu 16.04 and Fedora. (#45311, @divyenpatel)
  • This fixes the overflow for priorityconfig- valid range {1, 9223372036854775806}. (#45122, @ravisantoshgudimetla)
  • Bump cluster autoscaler to v0.5.4, which fixes scale down issues with pods ignoring SIGTERM. (#45483, @mwielgus)
  • Create clusters with GPUs in GKE by specifying "type=,count=" to NODE_ACCELERATORS env var. (#45130, @vishh)
  • Remove deprecated node address type NodeLegacyHostIP. (#44830, @NickrenREN)
  • UIDs and GIDs now use apimachinery types (#44714, @jamiehannaford)
  • Enable basic auth username rotation for GCI (#44590, @ihmccreery)
  • Kubectl taint node based on label selector (#44740, @ravisantoshgudimetla)
  • Scheduler perf modular extensions. (#44770, @ravisantoshgudimetla)

v1.7.0-alpha.3

Documentation & Examples

Downloads for v1.7.0-alpha.3

filename sha256 hash
kubernetes.tar.gz 03437cacddd91bb7dc21960c960d673ceb99b53040860638aa1d1fbde6d59fb5
kubernetes-src.tar.gz 190441318abddb44cfcbaec2f1b91d1a76167b91165ce5ae0d1a99c1130a2a36

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 1c3dcc57e014b15395a140eeeb285e38cf5510939b4113d053006d57d8e13087
kubernetes-client-darwin-amd64.tar.gz c33d893f67d8ac90834c36284ef88c529c43662c7179e2a9e4b17671c057400b
kubernetes-client-linux-386.tar.gz 5f3e44b8450db4f93a7ea1f366259c6333007a4536cb242212837bb241c3bbef
kubernetes-client-linux-amd64.tar.gz 85ac41dd849f3f9e033d4e123f79c4bd5d7b43bdd877d57dfc8fd2cadcef94be
kubernetes-client-linux-arm64.tar.gz f693032dde194de67900fe8cc5252959d70992b89a24ea43e11e9949835df5db
kubernetes-client-linux-arm.tar.gz 22fa2d2a77310acac1b08a7091929b03977afb2e4a246b054d38b3da15b84e33
kubernetes-client-linux-ppc64le.tar.gz 8717e6042a79f6a79f4527370adb1bbc903b0b9930c6aeee0174687b7443f9d4
kubernetes-client-linux-s390x.tar.gz 161c1da92b681decfb9800854bf3b9ff0110ba75c11008a784b891f3a57b032d
kubernetes-client-windows-386.tar.gz 19f5898a1fdef8c4caf27c6c2b79b0e085127b1d209f57361bce52ca8080842d
kubernetes-client-windows-amd64.tar.gz ff79c61efa87af3eeb7357740a495997d223d256b2e54c139572154e113dc247

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz 13677b0400758f0d74087768be7abf3fd7bd927f0b874b8d6becc11394cdec2c
kubernetes-server-linux-arm64.tar.gz 0a2df3a6ebe157aa8a7e89bd8805dbad3623e122cc0f3614bfcb4ad528bd6ab1
kubernetes-server-linux-arm.tar.gz 76611e01de80c07ec954c91612a550063b9efc0c223e5dd638d71f4a3f3d9430
kubernetes-server-linux-ppc64le.tar.gz 2fe29a5871afe693f020e9642e6bc664c497e71598b70673d4f2c4523f57e28b
kubernetes-server-linux-s390x.tar.gz 33a1eb93a5d7004987de38ef54e888f0593e31cf9250be3e25118a1d1b474c07

Node Binaries

filename sha256 hash
kubernetes-node-linux-amd64.tar.gz de369ca9e5207fb67b26788b41cee1c75935baae348fedc1adf9dbae8c066e7d
kubernetes-node-linux-arm64.tar.gz 21839fe6c2a3fd3c165dea6ddbacdec008cdd154c9704866d13ac4dfb14ad7ae
kubernetes-node-linux-arm.tar.gz 2326a074f7c9ba205d996f4f42b8f511c33d909aefd3ea329cc579c4c14b5300
kubernetes-node-linux-ppc64le.tar.gz 58a3aeb5d55d040fd3133dbaa26eb966057ed2b35a5e0522ce8c1ebf4e9b2364
kubernetes-node-linux-s390x.tar.gz 2c231a8357d891012574b522ee7fa5e25c6b62b6d888d9bbbb195950cbe18536
kubernetes-node-windows-amd64.tar.gz 870bb1ab53a3f2bb5a3c068b425cd6330e71c86dc2ab899c79f733b63ddb51c5

Changelog since v1.7.0-alpha.2

Action Required

Other notable changes

  • kubeadm: Fix invalid assign statement so it is possible to register the master kubelet with other initial Taints (#45376, @luxas)
  • Use Docker API Version instead of docker version (#44068, @mkumatag)
  • bump(golang.org/x/oauth2): a6bd8cefa1811bd24b86f8902872e4e8225f74c4 (#45056, @ericchiang)
  • apimachinery: make explicit that meta.KindToResource is only a guess (#45272, @sttts)
  • Remove PodSandboxStatus.Linux.Namespaces.Network from CRI. (#45166, @feiskyer)
  • Fixed misspelled http URL in the cluster-dns example (#45246, @psiwczak)
  • separate discovery from the apiserver (#43003, @deads2k)
  • Remove the --secret-name flag from kubefed join, instead generating the secret name arbitrarily. (#42513, @perotinus)
  • Added InterPodAffinity unit test case with Namespace. (#45152, @k82cn)
  • Use munged semantic version for side-loaded docker tag (#44981, @ixdy)
  • Increase Dashboard's memory requests and limits (#44712, @maciaszczykm)
  • PodSpec's HostAliases now write entries into the Kubernetes-managed hosts file. (#45148, @rickypai)
  • Create and push a docker image for the cloud-controller-manager (#45154, @luxas)
  • Align Extender's validation with prioritizers. (#45091, @k82cn)
  • Retry calls we report config changes quickly. (#44959, @ktsakalozos)
  • A new field hostAliases has been added to pod.spec to support adding entries to a Pod's /etc/hosts file. (#44641, @rickypai)
  • Added CIFS PV support for Juju Charms (#45117, @chuckbutler)
  • Some container runtimes share a process (PID) namespace for all containers in a pod. This will become the default for Docker in a future release of Kubernetes. You can preview this functionality if running with the CRI and Docker 1.13.1 by enabling the --experimental-docker-enable-shared-pid kubelet flag. (#41583, @verb)
  • add APIService conditions (#43301, @deads2k)
  • Log warning when invalid dir passed to kubectl proxy --www (#44952, @CaoShuFeng)
  • Roll up volume error messages in the kubelet sync loop. (#44938, @jayunit100)
  • Introduces the ability to extend kubectl by adding third-party plugins. Developer preview, please refer to the documentation for instructions about how to use it. (#37499, @fabianofranz)
  • Fixes juju kubernetes master: 1. Get certs from a dead leader. 2. Append tokens. (#43620, @ktsakalozos)
  • Use correct option name in the kubernetes-worker layer registry action (#44921, @jacekn)
  • Start recording cloud provider metrics for AWS (#43477, @gnufied)
  • Bump GLBC version to 0.9.3 (#45055, @nicksardo)
  • Add metrics to all major gce operations {latency, errors} (#44510, @bowei)

    • The new metrics are:

    • cloudprovider_gce_api_request_duration_seconds{request, region, zone}

    • cloudprovider_gce_api_request_errors{request, region, zone}

    • request is the specific function that is used.

    • region is the target region (Will be "<n/a>" if not applicable)

    • zone is the target zone (Will be "<n/a>" if not applicable)

    • Note: this fixes some issues with the previous implementation of

    • metrics for disks:

      • Time duration tracked was of the initial API call, not the entire

    • operation.

      • Metrics label tuple would have resulted in many independent

    • histograms stored, one for each disk. (Did not aggregate well).

  • Update kubernetes-e2e charm to use snaps (#45044, @Cynerva)
  • Log the error (if any) in e2e metrics gathering step (#45039, @shyamjvs)
  • The proxy subresource APIs for nodes, services, and pods now support the HTTP PATCH method. (#44929, @liggitt)
  • cluster-autoscaler: Fix duplicate writing of logs. (#45017, @MaciekPytel)
  • CRI: Fix StopContainer timeout (#44970, @Random-Liu)
  • Fixes a bug where pods were evicted even after images are successfully deleted. (#44986, @dashpole)
  • Fix some false negatives in detection of meaningful conflicts during strategic merge patch with maps and lists. (#43469, @enisoc)
  • kubernetes-master juju charm properly detects etcd-scale events and reconfigures appropriately. (#44967, @chuckbutler)
  • Add redirect support to SpdyRoundTripper (#44451, @ncdc)
  • Support running Ubuntu image on GCE node (#44744, @yguo0905)
  • Send dns details only after cdk-addons are configured (#44945, @ktsakalozos)
  • Added support to the pause action in the kubernetes-worker charm for new flag --delete-local-data (#44931, @chuckbutler)
  • Upgrade go version to v1.8 (#41636, @luxas)
  • Add namespace-{list, create, delete} actions to the kubernetes-master layer (#44277, @jacekn)
  • Fix problems with scaling up the cluster when unschedulable pods have some persistent volume claims. (#44860, @mwielgus)
  • Feature/hpa upscale downscale delay configurable (#42101, @Dmitry1987)
  • Add short name "netpol" for networkpolicies (#42241, @xiangpengzhao)
  • Restored the ability of kubectl running inside a pod to consume resource files specifying a different namespace than the one the pod is running in. (#44862, @liggitt)
  • e2e: handle nil ReplicaSet in checkDeploymentRevision (#44859, @sttts)
  • Fix false positive "meaningful conflict" detection for strategic merge patch with integer values. (#44788, @enisoc)
  • Documented NodePort networking for CDK. (#44863, @chuckbutler)
  • Deployments and DaemonSets are now considered complete once all of the new pods are up and running - affects kubectl rollout status (and ProgressDeadlineSeconds for Deployments) (#44672, @kargakis)
  • Exclude nodes labeled as master from LoadBalancer / NodePort; restores documented behaviour. (#44745, @justinsb)
  • Fixes issue during LB creation where ports where incorrectly assigned to a floating IP (#44387, @jamiehannaford)
  • Remove redis-proxy.yaml sample, as the image is nowhere to be found. (#44801, @klausenbusk)
  • Resolves juju vsphere hostname bug showing only a single node in a scaled node-pool. (#44780, @chuckbutler)
  • kubectl commands run inside a pod using a kubeconfig file now use the namespace specified in the kubeconfig file, instead of using the pod namespace. If no kubeconfig file is used, or the kubeconfig does not specify a namespace, the pod namespace is still used as a fallback. (#44570, @liggitt)
  • This adds support for CNI ConfigLists, which permit plugin chaining. (#42202, @squeed)
  • API requests using impersonation now include the system:authenticated group in the impersonated user automatically. (#44076, @liggitt)
  • Print conditions of RC/RS in 'kubectl describe' command. (#44710, @xiangpengzhao)
  • cinder: Add support for the KVM virtio-scsi driver (#41498, @mikebryant)
  • Disallows installation of upstream docker from PPA in the Juju kubernetes-worker charm. (#44681, @wwwtyro)
  • Fluentd manifest pod is no longer created on non-registered master when creating clusters using kube-up.sh. (#44721, @piosz)
  • Job controller now respects ControllerRef to avoid fighting over Pods. (#42176, @enisoc)
  • CronJob controller now respects ControllerRef to avoid fighting with other controllers. (#42177, @enisoc)
  • The hyperkube image has been slimmed down and no longer includes addon manifests and other various scripts. These were introduced for the now removed docker-multinode setup system. (#44555, @luxas)
  • Refactoring reorganize taints function in kubectl to expose operations (#43171, @ravisantoshgudimetla)
  • The Kubernetes API server now exits if it encounters a networking failure (e.g. the networking interface hosting its address goes away) to allow a process manager (systemd/kubelet/etc) to react to the problem. Previously the server would log the failure and try again to bind to its configured address:port. (#42272, @marun)
  • Fixes a bug in the kubernetes-worker Juju charm code that attempted to give kube-proxy more than one api endpoint. (#44677, @wwwtyro)
  • Fixes a missing comma in a list of strings. (#44678, @wwwtyro)
  • Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm (#44635, @Cynerva)

v1.7.0-alpha.2

Documentation & Examples

Downloads for v1.7.0-alpha.2

filename sha256 hash
kubernetes.tar.gz d60465c07b8aa4b5bc8e3de98769d72d22985489e5cdfd1a3165e36c755d6c3b
kubernetes-src.tar.gz b0b388571225e37a5b9bca6624a92e69273af907cdb300a6d0ac6a0d0d364bd4

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 55b04bc43c45bd93cf30174036ad64109ca1070ab3b331882e956f483dac2b6a
kubernetes-client-darwin-amd64.tar.gz d61c055ca90aacb6feb10f45feaaf11f188052598cfef79f4930358bb37e09ad
kubernetes-client-linux-386.tar.gz e10ce9339ee6158759675bfb002409fa7f70c701aa5a8a5ac97abc56742561b7
kubernetes-client-linux-amd64.tar.gz b9cb60ba71dfa144ed1e6f2116afd078782372d427912838c56f3b77a74afda0
kubernetes-client-linux-arm64.tar.gz bc0446c484dba91d8f1e32c0175b81dca5c6ff0ac9f5dd3f69cff529afb83aff
kubernetes-client-linux-arm.tar.gz f794765ca98a2c0611fda32756250eff743c25b66cd4d973fc5720a55771c1c6
kubernetes-client-linux-ppc64le.tar.gz 216cb6e96ba6af5ae259c069576fcd873c48a8a4e8918f5e08ac13427fbefd57
kubernetes-client-linux-s390x.tar.gz fb7903d028744fdfe3119ade6b2ee71532e3d69a82bd5834206fe84e50821253
kubernetes-client-windows-386.tar.gz 6bdfbd12361f814c86f268dcc807314f322efe9390ca2d91087e617814e91684
kubernetes-client-windows-amd64.tar.gz fd26fc5f0e967b9f6ab18bc28893f2037712891179ddb67b035434c94612f7e3

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz e14c0748789f6a1c3840ab05d0ad5b796a0f03722ee923f8208740f702c0bc19
kubernetes-server-linux-arm64.tar.gz 270e0a6fcc0a2f38c8c6e8929a4a593535014bde88f69479a52c5b625bca435c
kubernetes-server-linux-arm.tar.gz 0bd58c2f8d8b6e8110354ccd71eb97eb873aca7b074ce9f83dab4f62a696e964
kubernetes-server-linux-ppc64le.tar.gz 57a4a5dcdb573fb6dc08dbd53d0f196c66d245fa2159a92bf8da0d29128e486d
kubernetes-server-linux-s390x.tar.gz 404c8dcc300281f5588e6f4dd15e3c41f858c6597e37a817913112d545a7f736

Changelog since v1.7.0-alpha.1

Action Required

  • kubectl create rolebinding and kubectl create clusterrolebinding no longer allow specifying multiple subjects as comma-separated arguments. Use repeated --user, --group, or --serviceaccount arguments to specify multiple subjects. (#43903, @xilabao)

Other notable changes

  • Add support for Azure internal load balancer (#43510, @karataliu)
  • Improved output on 'kubectl get' and 'kubectl describe' for generic objects. (#44222, @fabianofranz)
  • Add Kubernetes 1.6 support to Juju charms (#44500, @Cynerva)
    • Add metric collection to charms for autoscaling
    • Update kubernetes-e2e charm to fail when test suite fails
    • Update Juju charms to use snaps
    • Add registry action to the kubernetes-worker charm
    • Add support for kube-proxy cluster-cidr option to kubernetes-worker charm
    • Fix kubernetes-master charm starting services before TLS certs are saved
    • Fix kubernetes-worker charm failures in LXD
    • Fix stop hook failure on kubernetes-worker charm
    • Fix handling of juju kubernetes-worker.restart-needed state
    • Fix nagios checks in charms
  • Users can now specify listen and advertise URLs for etcd in a kubeadm cluster (#42246, @jamiehannaford)
  • Fixed kubectl cluster-info dump to support multi-container pod. (#44088, @xingzhou)
  • Prints out status updates when running kubefed init (#41849, @perotinus)
  • CRI: Fix kubelet failing to start when using rkt. (#44569, @yujuhong)
  • Remove deprecatedPublicIPs field (#44519, @thockin)
  • Remove deprecated ubuntu kube-up deployment. (#44344, @mikedanese)
  • Use OS-specific libs when computing client User-Agent in kubectl, etc. (#44423, @monopole)
  • kube-apiserver now drops unneeded path information if an older version of Windows kubectl sends it. (#44421, @mml)
  • Extending the gc admission plugin so that a user who doesn't have delete permission of the owner cannot modify blockOwnerDeletion field of existing ownerReferences, or add new ownerReference with blockOwnerDeletion=true (#43876, @caesarxuchao)
  • kube-apiserver: --service-account-lookup now defaults to true, requiring the Secret API object containing the token to exist in order for a service account token to be valid. This enables service account tokens to be revoked by deleting the Secret object containing the token. (#44071, @liggitt)
  • CRI: kubectl logs -f now stops following when container stops, as it did pre-CRI. (#44406, @Random-Liu)
  • Add completion support for --namespace and --cluster to kubectl (#44251, @superbrothers)
  • dnsprovider: avoid panic if route53 fields are nil (#44380, @justinsb)
  • In 'kubectl describe', find controllers with ControllerRef, instead of showing the original creator. (#42849, @janetkuo)
  • Heat cluster operations now support environments that have multiple Swift URLs (#41561, @jamiehannaford)
  • Adds support for allocation of pod IPs via IP aliases. (#42147, @bowei)
  • alpha volume provisioning is removed and default storage class should be used instead. (#44090, @NickrenREN)
  • validateClusterInfo: use clientcmdapi.NewCluster() (#44221, @ncdc)
  • Fix corner-case with OnlyLocal Service healthchecks. (#44313, @thockin)
  • Adds annotations to all Federation objects created by kubefed. (#42683, @perotinus)
  • [Federation][Kubefed] Bug fix to enable disabling federation controllers through override args (#44209, @irfanurrehman)
  • [Federation] Remove deprecated federation-apiserver-kubeconfig secret (#44287, @shashidharatd)
  • Scheduler can receive its policy configuration from a ConfigMap (#43892, @bsalamat)
  • AWS cloud provider: fix support running the master with a different AWS account or even on a different cloud provider than the nodes. (#44235, @mrIncompetent)
  • add rancher credential provider (#40160, @wlan0)
  • Support generating Open API extensions for strategic merge patch tags in go struct tags (#44121, @mbohlool)
  • Use go1.8.1 for arm and ppc64le (#44216, @mkumatag)
  • Aggregated used ports at the NodeInfo level for PodFitsHostPorts predicate. (#42524, @k82cn)
  • Catch error when failed to make directory in NFS volume plugin (#38801, @nak3)
  • Support iSCSI CHAP authentication (#43396, @rootfs)
  • Support context completion for kubectl config use-context (#42336, @superbrothers)
  • print warning when delete current context (#42538, @adohe)
  • Add node e2e tests for hostPid (#44119, @feiskyer)
  • kubeadm: Make kubeadm reset tolerant of a disabled docker service. (#43951, @luxas)
  • kubelet: make dockershim.sock configurable (#43914, @ncdc)
  • Fix broken service accounts when using dedicated service account key. (#44169, @mikedanese)
  • Fix incorrect conflict errors applying strategic merge patches to resources. (#43871, @liggitt)
  • Fix transition between NotReady and Unreachable taints. (#44042, @gmarek)
  • leader election lock based on scheduler name (#42961, @wanghaoran1988)
  • [Federation] Remove FEDERATIONS_DOMAIN_MAP references (#43137, @shashidharatd)
  • Fix for federation failing to propagate cascading deletion. (#44108, @csbell)
  • Fix bug with service nodeports that have no backends not being rejected, when they should be. This is not a regression vs v1.5 - it's a fix that didn't quite fix hard enough. (#43972, @thockin)
  • Fix for failure to delete federation controllers with finalizers. (#44084, @nikhiljindal)
  • Fix container hostPid settings. (#44097, @feiskyer)
  • Fixed an issue mounting the wrong secret into pods as a service account token. (#44102, @ncdc)

v1.7.0-alpha.1

Documentation & Examples

Downloads for v1.7.0-alpha.1

filename sha256 hash
kubernetes.tar.gz a8430f678ae5abb16909183bb6472d49084b26c2990854dac73f55be69941435
kubernetes-src.tar.gz 09792d0b31c3c0f085f54a62c0d151029026cee3c57ac8c3456751ef2243967f

Client Binaries

filename sha256 hash
kubernetes-client-darwin-386.tar.gz 115543a5ec55f9039136e0ecfd90d6510b146075d13987fad9c03db3761fbac6
kubernetes-client-darwin-amd64.tar.gz 91b7cc89386041125af2ecafd3c6e73197f0b7af3ec817d9aed4822e1543eee9
kubernetes-client-linux-386.tar.gz 7a77bfec2873907ad1f955e33414a9afa029d37d90849bf652e7bab1f2c668ed
kubernetes-client-linux-amd64.tar.gz 674d1a839869ac308f3a273ab41be42dab8b52e96526effdbd268255ab6ad4c1
kubernetes-client-linux-arm64.tar.gz 4b0164b0474987df5829dcd88c0cdf2d16dbcba30a03cd0ad5ca860d6b4a2f3f
kubernetes-client-linux-arm.tar.gz cb5a941c3e61465eab544c7b23acd4be6969d74ac23bd9370aa3f9dfc24f2b42
kubernetes-client-linux-ppc64le.tar.gz d583aff4c86de142b5e6e23cd5c8eb9617fea6574acede9fa2420169405429c6
kubernetes-client-linux-s390x.tar.gz ab14c4806b4e9c7a41993924467969886e1288216d80d2d077a2c35f26fc8cc5
kubernetes-client-windows-386.tar.gz 0af3f9d1193d9ea49bb4e1cb46142b846b70ceb49ab47ad6fc2497a0dc88395d
kubernetes-client-windows-amd64.tar.gz 12a9dffda6ba8916149b681f49af506790be97275fe6fc16552ac765aef20a99

Server Binaries

filename sha256 hash
kubernetes-server-linux-amd64.tar.gz d6b4c285a89172692e4ba82b777cc9df5b2f5061caa0a9cef6add246a848eeb9
kubernetes-server-linux-arm64.tar.gz e73fb04d4ff692f19de09cfc3cfa17014e23df4150b26c20c3329f688c164358
kubernetes-server-linux-arm.tar.gz 98763b72ba6652abfd5b671981506f8c35ab522d34af34636e5095413769eeb5
kubernetes-server-linux-ppc64le.tar.gz b39dbb0dc96dcdf1ec4cbd5788e00e46c0d11efb42c6dbdec64758aa8aa9d8e5
kubernetes-server-linux-s390x.tar.gz c0171e2f22c4e51f25185e71387301ad2c0ade90139fe96dec1c2f999de71716

Changelog since v1.6.0

Other notable changes

  • Juju: Enable GPU mode if GPU hardware detected (#43467, @tvansteenburgh)
  • Check the error before parsing the apiversion (#44047, @yujuhong)
  • get-kube-local.sh checks pods with option "--namespace=kube-system" (#42518, @mtanino)
  • Using http2 in kubeapi-load-balancer to fix kubectl exec uses (#43625, @mbruzek)
  • Support status.hostIP in downward API (#42717, @andrewsykim)
  • AWS cloud provider: allow to set KubernetesClusterID or KubernetesClusterTag in combination with VPC. (#42512, @scheeles)
  • changed kubelet default image-gc-high-threshold to 85% to resolve a conflict with default settings in docker that prevented image garbage collection from resolving low disk space situations when using devicemapper storage. (#40432, @sjenning)
  • When creating a container using envFrom, (#42083, @fraenkel)
      1. validate the name of the ConfigMap in a ConfigMapRef
      1. validate the name of the Secret in a SecretRef
  • RBAC role and rolebinding auto-reconciliation is now performed only when the RBAC authorization mode is enabled. (#43813, @liggitt)
  • Permission to use a PodSecurityPolicy can now be granted within a single namespace by allowing the use verb on the podsecuritypolicies resource within the namespace. (#42360, @liggitt)
  • Enable audit log in local cluster (#42379, @xilabao)
  • Fix a deadlock in kubeadm master initialization. (#43835, @mikedanese)
  • Implement API usage metrics for gce storage (#40338, @gnufied)
  • kubeadm: clean up exited containers and network checkpoints (#43836, @yujuhong)
  • ActiveDeadlineSeconds is validated in workload controllers now, make sure it's not set anywhere (it shouldn't be set by default and having it set means your controller will restart the Pods at some point) (#38741, @sandflee)
  • azure: all clients poll duration is now 5 seconds (#43699, @colemickens)
  • addressing issue #39427 adding a flag --output to 'kubectl version' (#39858, @alejandroEsc)
  • Support secure etcd cluster for centos provider. (#42994, @Shawyeok)
  • Use Cluster Autoscaler 0.5.1, which fixes an issue in Cluster Autoscaler 0.5 where the cluster may be scaled up unnecessarily. Also the status of Cluster Autoscaler is now exposed in kube-system/cluster-autoscaler-status config map. (#43745, @mwielgus)
  • Use ProviderID to address nodes in the cloudprovider (#42604, @wlan0)
  • Openstack cinder v1/v2/auto API support (#40423, @mkutsevol)
  • API resource discovery now includes the singularName used to refer to the resource. (#43312, @deads2k)
  • Add the ability to lock on ConfigMaps to support HA for self hosted components (#42666, @timothysc)
  • OpenStack clusters can now specify whether worker nodes are assigned a floating IP (#42638, @jamiehannaford)
  • Add Host field to TCPSocketAction (#42902, @louyihua)
  • Support StorageClass in Azure file volume (#42170, @rootfs)
  • Be able to specify the timeout to wait for pod for kubectl logs/attach (#41813, @shiywang)
  • Add support for bring-your-own ip address for Services on Azure (#42034, @brendandburns)
    1. create configmap has a new option --from-env-file that populates a configmap from file which follows a key=val format for each line. (#38882, @fraenkel)
      1. create secret has a new option --from-env-file that populates a configmap from file which follows a key=val format for each line.
  • update the signing key for percona debian and ubuntu packages (#41186, @dixudx)
  • fc: Drop multipath.conf snippet (#36698, @fabiand)

Please see the Releases Page for older releases.

Release notes of older releases can be found in:

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