Automatic merge from submit-queue
Update proposed flag names for kubelet eviction
This PR changes the flag names proposed in kubelet eviction for minimum amount of resource to reclaim when triggering an eviction.
This captures the design change proposed and agreed to in #27199
Having it in a separate PR removes noise from reviewing the core PR.
/cc @vishh @ronnielai PTAL
Automatic merge from submit-queue
Flannel doc description cidr modify
File "docs\proposals\flannel-integration.md", line 123, "node controller backs off cidr allocation", here cidr is not easy to understand, can be modified to CIDR.
Automatic merge from submit-queue
adds source debug build options
See issue & discussion here: #28227
Enables source debugging the Kubernetes binaries with tools like delve by providing the user with the ability to provide debug build options to the glang compiler.
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
Automatic merge from submit-queue
"server.go" directory error
In file "docs\devel\profiling.md", line 55:
"In 'pkg/master/server/server.go' more servers are created“
Here server.go directory is wrong, should be :pkg/kubelet/server/server.go
Automatic merge from submit-queue
Proposal for ControllerReference
Proposal for including the reference pointing to the owning "collection" (controller) for objects that can be grouped. The goal is to prevent a situation when two controllers are fighting over some resources.
cc @bgrant0607 @lavalamp @caesarxuchao @davidopp @fgrzadkowski @wojtek-t @kubernetes/sig-api-machinery
Automatic merge from submit-queue
Add proposal for service externalName
This is a proposal to address: #13748.
@smarterclayton @ncdc @thockin. Please check this out when you have time, hopefully this is okay :-D
I created the proposal because was unsure if the feature would be able to go in if there isn't a proposal already merged, because of this mail to kubernetes-pm: https://groups.google.com/forum/#!topic/kubernetes-pm/Ki63EztfZMo.
So, IIUC it would be nice to have the proposal merged ASAP (I think the interface looks ok for all, so hopefully this will be easy) so we can have this feature in 1.4 as you guys ( @smarterclayton @ncdc ) need.
Automatic merge from submit-queue
Both the file name and directory of fake docker manager are wrong
In file "docs/devel/kubemark-guide.md b/docs/devel/kubemark-guide.md", line 232
"manager with `pkg/kubelet/fake-docker-manager.go`"
here both the name and directory of fake docker manger are wrong, it should be "pkg/kubelet/dockertools/fake_manager.go".
Automatic merge from submit-queue
File "cluster/kube-env.sh" not exist
In file "docs/devel/developer-guides/vagrant.md", line 281:
"your environment in `cluster/kube-env.sh`:"
Here file "cluster/kube-env.sh" not exist.
Automatic merge from submit-queue
The directory of file "request.go" has been changed, need to modify
In file "docs/devel/api_changes.md", line 402:
"library](../../pkg/client/unversioned/request.go) has custom conversion code for"
Here the directory of request.go "pkg/client/unversioned" has been changed to "pkg/client/restclient", need to modify.
Automatic merge from submit-queue
Add proposal for secret and configmap files mode bits
This is a proposal to address https://github.com/kubernetes/kubernetes/issues/28317.
cc @pmorie (owner) @thockin
@thockin: Sorry if you preferred not to be CCed, I thougth you'd be interested :-)
I think this is always the case, but let me say it one more time just in case: as this is a PR, ALL the feedback is more than welcome!
It's my first time in kubernetes, so sorry in advance if this is obviously wrong. What I realize now is that I forgot to add the headers to the proposal. Is there some script to add them? Or should I just c&p from some other proposal?
Thanks a lot,
Rodrigo
Automatic merge from submit-queue
Doc referrence "container-id" incorrect
File "docs\proposals\disk-accounting.md", line 154, "Everything under `/var/lib/docker/overlay/<container-id>` are files required for running the container", here "container-id" is incorrect because files under "/var/lib/docker/overlay" are layer files, and "container-id" should be "id" thus consistent with line 148 "Image layers and writable layers are stored under `/var/lib/docker/overlay/<id>`".
This allows us to start building real dependencies into Makefile.
Leave old hack/* scripts in place but advise to use 'make'. There are a few
rules that call things like 'go run' or 'build/*' that I left as-is for now.
Automatic merge from submit-queue
Fix some errors in the e2e doc and make it more consistent
- "--tests" is not a valid argument
- use --ginko-skip to exclude (not focus)
- add "--check_node_count=false" to test against local cluster
- always use "--" for long args (there was a mix of "-" and "--" and it was a bit confusing)
Automatic merge from submit-queue
Deprecate the term "Ubernetes"
Deprecate the term "Ubernetes" in favor of "Cluster Federation" and "Multi-AZ Clusters"
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Allow specifying base location for test etcd data
Allows controlling where etcd test data goes. Needed in some environments (like AWS/EBS) to allow putting etcd data on a higher performing volume than /tmp
Search and replace for references to moved examples
Reverted find and replace paths on auto gen docs
Reverting changes to changelog
Fix bugs in test-cmd.sh
Fixed path in examples README
ran update-all successfully
Updated verify-flags exceptions to include renamed files
- "--tests" is not a valid argument
- use --ginko-skip to exclude (not focus)
- add "--check_node_count=false" to test against local cluster
- always use "--" for long args (there was a mix of "-" and "--" and it was a bit confusing)
Automatic merge from submit-queue
Enable extensions/v1beta1/NetworkPolicy by default
Fixes https://github.com/kubernetes/kubernetes/issues/28401
For some reason this also triggered an update to the swagger spec (which apparently hadn't been done before but wasn't failing validation...)
This drives conversion generation from file tags like:
// +conversion-gen=k8s.io/my/internal/version
.. rather than hardcoded lists of packages.
The only net change in generated code can be explained as correct. Previously
it didn't know that conversion was available.
Automatic merge from submit-queue
Prep for not checking in generated, part 1/2
This PR is extracted from #25978 - it is just the deep-copy related parts. All the Makefile and conversion stuff is excluded.
@wojtek-t this is literally branched, a bunch of commits deleted, and a very small number of manual fixups applied. If you think this is easier to review (and if it passes CI) you can feel free to go over it again. I will follow this with a conversion-related PR to build on this.
Or if you prefer, just close this and let the mega-PR ride.
@lavalamp
This is the last piece of Clayton's #26179 to be implemented with file tags.
All diffs are accounted for. Followup will use this to streamline some
packages.
Also add some V(5) debugging - it was helpful in diagnosing various issues, it
may be helpful again.
This drives most of the logic of deep-copy generation from tags like:
// +deepcopy-gen=package
..rather than hardcoded lists of packages. This will make it possible to
subsequently generate code ONLY for packages that need it *right now*, rather
than all of them always.
Also remove pkgs that really do not need deep-copies (no symbols used
anywhere).
Automatic merge from submit-queue
Represent unversioned.Time correctly in swagger spec
unversioned.Time previously represented as "string" type with no format while the correct representation should also have "date-time" as format. fixes#2968
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delete the redundant word "a"
In file docs/reporting-security-issues.md, line #37, "If you believe you have discovered a vulnerability or a have a security incident to report", here the second "a" is redundant, should be deleted.
Automatic merge from submit-queue
"Mover" should be "Moreover"
In file docs/proposals/apiserver-watch.md, line #108, "Mover, this will not require any changes in other parts of the code.", here "Mover" should be "Moreover".
This commit includes a proposal and a Go file to re-define the container
runtime interface.
Note that this is an experimental interface and is expected to go through
multiple revisions once developers start implementing against it. As stated in
the proposal, there are also individual issues to carry discussions of
specific features.
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Remove comment about empty selectors in the service spec
As discussed, removing the comment about empty selectors in Service specs.
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TLS bootstrap API group (alpha)
This PR only covers the new types and related client/storage code- the vast majority of the line count is codegen. The implementation differs slightly from the current proposal document based on discussions in design thread (#20439). The controller logic and kubelet support mentioned in the proposal are forthcoming in separate requests.
I submit that #18762 ("Creating a new API group is really hard") is, if anything, understating it. I've tried to structure the commits to illustrate the process.
@mikedanese @erictune @smarterclayton @deads2k
```release-note-experimental
An alpha implementation of the the TLS bootstrap API described in docs/proposals/kubelet-tls-bootstrap.md.
```
[]()
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Dedent
Adding the dedent package and then applying it to the kubectl help commands. Also updating the documentation to reflect the use of dedent.
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to remove workflow proposal
@erictune @brendanburns
I think workflow proposal should be removed now. If you have a specific plan to remove it disregard this.
Automatic merge from submit-queue
Allow conformance tests to run on non-GCE providers
fixes https://github.com/kubernetes/kubernetes/issues/26869
Creates a skeleton provider which has all the required function stubs -- but will allow a previously set "skeleton" KUBERNETES_PROVIDER to not be overriden with "gce".
Automatic merge from submit-queue
Kubelet Volume Manager Wait For Attach Detach Controller and Backoff on Error
* Closes https://github.com/kubernetes/kubernetes/issues/27483
* Modified Attach/Detach controller to report `Node.Status.AttachedVolumes` on successful attach (unique volume name along with device path).
* Modified Kubelet Volume Manager wait for Attach/Detach controller to report success before proceeding with attach.
* Closes https://github.com/kubernetes/kubernetes/issues/27492
* Implemented an exponential backoff mechanism for for volume manager and attach/detach controller to prevent operations (attach/detach/mount/unmount/wait for controller attach/etc) from executing back to back unchecked.
* Closes https://github.com/kubernetes/kubernetes/issues/26679
* Modified volume `Attacher.WaitForAttach()` methods to uses the device path reported by the Attach/Detach controller in `Node.Status.AttachedVolumes` instead of calling out to cloud providers.
This commit adds a new volume manager in kubelet that synchronizes
volume mount/unmount (and attach/detach, if attach/detach controller
is not enabled).
This eliminates the race conditions between the pod creation loop
and the orphaned volumes loops. It also removes the unmount/detach
from the `syncPod()` path so volume clean up never blocks the
`syncPod` loop.
Also includes other improvements:
- Makefile rule to run tests against remote instance using existing host or image
- Makefile will reuse an instance created from an image if it was not torn down
- Runner starts gce instances in parallel with building source
- Runner uses instance ip instead of hostname so that it doesn't need to resolve
- Runner supports cleaning up files and processes on an instance without stopping / deleting it
- Runner runs tests using `ginkgo` binary to support running tests in parallel
Automatic merge from submit-queue
Add the criteria for including new APIs
@bgrant0607 @smarterclayton @davidopp @thockin @jbeda
As discussed in community meeting today.
Double slashes are not allowed in annotation keys. Moreover, using the 63
characters of the name component in an annotation key will shorted the space
for the container name.
This PR contains Kubelet changes to enable attach/detach controller control.
* It introduces a new "enable-controller-attach-detach" kubelet flag to
enable control by controller. Default enabled.
* It removes all references "SafeToDetach" annoation from controller.
* It adds the new VolumesInUse field to the Node Status API object.
* It modifies the controller to use VolumesInUse instead of SafeToDetach
annotation to gate detachment.
* There is a bug in node-problem-detector that causes VolumesInUse to
get reset every 30 seconds. Issue https://github.com/kubernetes/node-problem-detector/issues/9
opened to fix that.
Automatic merge from submit-queue
federation: Update the list of supported admission controls
Ref https://github.com/kubernetes/kubernetes/pull/26298#issuecomment-221697124
In 1.3, we are going to support only AlwaysAdmit and AlwaysDeny admission controls.
Updating the documentation accordingly.
@kubernetes/sig-cluster-federation
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Switch DNS addons from skydns to kubedns
Change GCI and trusty cluster-helper scripts to use kubedns instead of skydns.
Unified skydns templates using a simple underscore based template and
added transform sed scripts to transform into salt and sed yaml
templates
Moved all content out of cluster/addons/dns into build/kube-dns and
saltbase/salt/kube-dns
Automatic merge from submit-queue
Reduce volume controller sync period
fixes#24236 and most probably also fixes#25294.
Needs #25881! With the cache, binder is not affected by sync period. Without the cache, binding of 1000 PVCs takes more than 5 minutes (instead of ~70 seconds).
15 seconds were chosen by fair 2d10 roll :-)
Automatic merge from submit-queue
kube-controller-manager: Add configure-cloud-routes option
This allows kube-controller-manager to allocate CIDRs to nodes (with
allocate-node-cidrs=true), but will not try to configure them on the
cloud provider, even if the cloud provider supports Routes.
The default is configure-cloud-routes=true, and it will only try to
configure routes if allocate-node-cidrs is also configured, so the
default behaviour is unchanged.
This is useful because on AWS the cloud provider configures routes by
setting up VPC routing table entries, but there is a limit of 50
entries. So setting configure-cloud-routes on AWS would allow us to
continue to allocate node CIDRs as today, but replace the VPC
route-table mechanism with something not limited to 50 nodes.
We can't just turn off the cloud-provider entirely because it also
controls other things - node discovery, load balancer creation etc.
Fix#25602
Automatic merge from submit-queue
Expose GET and PATCH for status subresource
We can do this for other status subresource. I only updated node/status in this PR to unblock https://github.com/kubernetes/node-problem-detector/issues/9.
cc @Random-Liu @lavalamp
This allows kube-controller-manager to allocate CIDRs to nodes (with
allocate-node-cidrs=true), but will not try to configure them on the
cloud provider, even if the cloud provider supports Routes.
The default is configure-cloud-routes=true, and it will only try to
configure routes if allocate-node-cidrs is also configured, so the
default behaviour is unchanged.
This is useful because on AWS the cloud provider configures routes by
setting up VPC routing table entries, but there is a limit of 50
entries. So setting configure-cloud-routes on AWS would allow us to
continue to allocate node CIDRs as today, but replace the VPC
route-table mechanism with something not limited to 50 nodes.
We can't just turn off the cloud-provider entirely because it also
controls other things - node discovery, load balancer creation etc.
Fix#25602
Automatic merge from submit-queue
Attach Detach Controller Business Logic
This PR adds the meat of the attach/detach controller proposed in #20262.
The PR splits the in-memory cache into a desired and actual state of the world.
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Downward API implementation for resources limits and requests
This is an implementation of Downward API for resources limits and requests, and it works with environment variables and volume plugin.
This is based on proposal https://github.com/kubernetes/kubernetes/pull/24051. This implementation follows API with magic keys approach as discussed in the proposal.
@kubernetes/rh-cluster-infra
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Split controller cache into actual and desired state of world.
Controller will only operate on volumes scheduled to nodes that
have the "volumes.kubernetes.io/controller-managed-attach" annotation.
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Add a 'kubectl clusterinfo dump' option
Ref: #3500
@bgrant0607 @smarterclayton @jszczepkowski
Usage:
```
# Dump current cluster state to stdout
kubectl clusterinfo dump
# Dump current cluster state to /tmp
kubectl clusterinfo dump --output-directory=/tmp
# Dump all namespaces to stdout
kubectl clusterinfo dump --all-namespaces
# Dump a set of namespaces to /tmp
kubectl clusterinfo dump --namespaces default,kube-system --output-directory=/tmp
```
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remove ConfigMap example from GC proposal
We need more thoughts on the design. Remove it to avoid causing confusion.
@derekwaynecarr @lavalamp
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Proposal: persistent volume selector
Partially replaces #17056. Another proposal will follow dealing with dynamic provisioning on top of storage classes.
@kubernetes/sig-storage
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vSphere Volume Plugin Implementation
This PR implements vSphere Volume plugin support in Kubernetes (ref. issue #23932).
Automatic merge from submit-queue
Introduce node memory pressure condition to scheduler
Following the work done by @derekwaynecarr at https://github.com/kubernetes/kubernetes/pull/21274, introducing memory pressure predicate for scheduler.
Missing:
* write down unit-test
* test the implementation
At the moment this is a heads up for further discussion how the new node's memory pressure condition should be handled in the generic scheduler.
**Additional info**
* Based on [1], only best effort pods are subject to filtering.
* Based on [2], best effort pods are those pods "iff requests & limits are not specified for any resource across all containers".
[1] 542668cc79/docs/proposals/kubelet-eviction.md (scheduler)
[2] https://github.com/kubernetes/kubernetes/pull/14943
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Use protobufs by default to communicate with apiserver (still store JSONs in etcd)
@lavalamp @kubernetes/sig-api-machinery
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Cache Webhook Authentication responses
Add a simple LRU cache w/ 2 minute TTL to the webhook authenticator.
Kubectl is a little spammy, w/ >= 4 API requests per command. This also prevents a single unauthenticated user from being able to DOS the remote authenticator.
Automatic merge from submit-queue
Extend secrets volumes with path control
As per [1] this PR extends secrets mapped into volume with:
* key-to-path mapping the same way as is for configmap. E.g.
```
{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"name": "mypod",
"namespace": "default"
},
"spec": {
"containers": [{
"name": "mypod",
"image": "redis",
"volumeMounts": [{
"name": "foo",
"mountPath": "/etc/foo",
"readOnly": true
}]
}],
"volumes": [{
"name": "foo",
"secret": {
"secretName": "mysecret",
"items": [{
"key": "username",
"path": "my-username"
}]
}
}]
}
}
```
Here the ``spec.volumes[0].secret.items`` added changing original target ``/etc/foo/username`` to ``/etc/foo/my-username``.
* secondly, refactoring ``pkg/volumes/secrets/secrets.go`` volume plugin to use ``AtomicWritter`` to project a secret into file.
[1] https://github.com/kubernetes/kubernetes/blob/master/docs/design/configmap.md#changes-to-secret
Automatic merge from submit-queue
Updaing QoS policy to be at the pod level
Quality of Service will be derived from an entire Pod Spec, instead of being derived from resource specifications of individual resources per-container.
A Pod is `Guaranteed` iff all its containers have limits == requests for all the first-class resources (cpu, memory as of now).
A Pod is `BestEffort` iff requests & limits are not specified for any resource across all containers.
A Pod is `Burstable` otherwise.
Note: Existing pods might be more susceptible to OOM Kills on the node due to this PR! To protect pods from being OOM killed on the node, set `limits` for all resources across all containers in a pod.
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Update AWS under the hood doc with ELB SSL annotations
Document #23495. No e2e tests or release notes needed (the other PR is already in the release docs).
Automatic merge from submit-queue
add CIDR allocator for NodeController
This PR:
* use pkg/controller/framework to watch nodes and reduce lists when allocate CIDR for node
* decouple the cidr allocation logic from monitoring status logic
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Add 'kubectl set image'
```release-note
Add "kubectl set image" for easier updating container images (for pods or resources with pod templates).
```
**Usage:**
```
kubectl set image (-f FILENAME | TYPE NAME) CONTAINER_NAME_1=CONTAINER_IMAGE_1 ... CONTAINER_NAME_N=CONTAINER_IMAGE_N
```
**Example:**
```console
# Set a deployment's nginx container image to 'nginx:1.9.1', and its busybox container image to 'busybox'.
$ kubectl set image deployment/nginx busybox=busybox nginx=nginx:1.9.1
# Update all deployments' nginx container's image to 'nginx:1.9.1'
$ kubectl set image deployments nginx=nginx:1.9.1 --all
# Update image of all containers of daemonset abc to 'nginx:1.9.1'
$ kubectl set image daemonset abc *=nginx:1.9.1
# Print result (in yaml format) of updating nginx container image from local file, without hitting the server
$ kubectl set image -f path/to/file.yaml nginx=nginx:1.9.1 --local -o yaml
```
I abandoned the `--container=xxx --image=xxx` flags in the [deploy proposal](https://github.com/kubernetes/kubernetes/blob/master/docs/proposals/deploy.md#kubectl-set) since it's much easier to use with just KEY=VALUE (CONTAINER_NAME=CONTAINER_IMAGE) pairs.
Ref #21648
@kubernetes/kubectl @bgrant0607 @kubernetes/sig-config
[]()
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systemd node spec proposal
The following outlines changes that I want to make to the ```kubelet``` in order to better integrate with ```systemd``` systems, and to better isolate containers in their own ```cgroup``` based on the qos tier.
I think this is a precursor to getting more intelligent low compute resource eviction.
/cc @smarterclayton @ncdc @pmorie @dchen1107 @vishh @bgrant0607
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This patch adds the --exit-on-lock-contention flag, which must be used
in conjunction with the --lock-file flag. When provided, it causes the
kubelet to wait for inotify events for that lock file. When an 'open'
event is received, the kubelet will exit.
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Add init containers to pods
This implements #1589 as per proposal #23666
Incorporates feedback on #1589, creates parallel structure for InitContainers and Containers, adds validation for InitContainers that requires name uniqueness, and comments on a number of implications of init containers.
This is a complete alpha implementation.
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Automatically add node labels beta.kubernetes.io/{os,arch}
Proposal: #17981
As discussed in #22623:
> @davidopp: #9044 says cloud provider but can also cover platform stuff.
Adds a label `beta.kubernetes.io/platform` to `kubelet` that informs about the os/arch it's running on.
Makes it easy to specify `nodeSelectors` for different arches in multi-arch clusters.
```console
$ kubectl get no --show-labels
NAME STATUS AGE LABELS
127.0.0.1 Ready 1m beta.kubernetes.io/platform=linux-amd64,kubernetes.io/hostname=127.0.0.1
$ kubectl describe no
Name: 127.0.0.1
Labels: beta.kubernetes.io/platform=linux-amd64,kubernetes.io/hostname=127.0.0.1
CreationTimestamp: Thu, 31 Mar 2016 20:39:15 +0300
```
@davidopp @vishh @fgrzadkowski @thockin @wojtek-t @ixdy @bgrant0607 @dchen1107 @preillyme
Automatic merge from submit-queue
Add eviction-pressure-transitition-period flag to kubelet
This PR does the following:
* add the new flag to control how often a node will go out of memory pressure or disk pressure conditions see: https://github.com/kubernetes/kubernetes/pull/25282
* pass an `eviction.Config` into `kubelet` so we can group config
/cc @vishh
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WIP v0 NVIDIA GPU support
```release-note
* Alpha support for scheduling pods on machines with NVIDIA GPUs whose kubelets use the `--experimental-nvidia-gpus` flag, using the alpha.kubernetes.io/nvidia-gpu resource
```
Implements part of #24071 for #23587
I am not familiar with the scheduler enough to know what to do with the scores. Mostly punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and docs
cc @erictune @davidopp @dchen1107 @vishh @Hui-Zhi @gopinatht
Automatic merge from submit-queue
Webhook Token Authenticator
Add a webhook token authenticator plugin to allow a remote service to make authentication decisions.
Automatic merge from submit-queue
devel/ tree further minor edits
Address line wrap issue #1488. Also cleans up other minor editing issues in the docs/devel/* tree such as spelling errors, links, content tables...
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
Automatic merge from submit-queue
devel/ tree more minor edits
Address line wrap issue #1488. Also cleans up other minor editing issues in the docs/devel/* tree such as spelling errors, links, content tables...
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
Automatic merge from submit-queue
devel/ tree minor edits
Address line wrap issue #1488. Also cleans up other minor editing issues in the docs/devel/* tree such as spelling errors, links,...
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
Automatic merge from submit-queue
docs: Self-hosted Kubelet proposal
Provides a proposal for changes needed with Kubernetes to allow for a
self-hosted Kubelet bootstrap.
Implements part of #24071
I am not familiar with the scheduler enough to know what to do with the scores. Punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and user docs
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Clarify supported version skew between masters, nodes, and clients
Per discussion on #22897.
cc @bgrant0607 @roberthbailey
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Introduce events flag for describers
Printing events for a given object is not always needed. Thus, introducing --show-events=false to ``kubectl describe`` to skip events printing.
Fixes: #24239
Automatic merge from submit-queue
Update adding-an-APIGroup.md for #23110
Change the doc to point at the new conversion/deep-copy binaries instead of the old scripts.
Automatic merge from submit-queue
Reimplement 'pause' in C - smaller footprint all around
Statically links against musl. Size of amd64 binary is 3560 bytes.
I couldn't test the arm binary since I have no hardware to test it on, though I assume we want it to work on a raspberry pi.
This PR also adds the gcc5/musl cross compiling image used to build the binaries.
@thockin
Automatic merge from submit-queue
Add subPath to mount a child dir or file of a volumeMount
Allow users to specify a subPath in Container.volumeMounts so they can use a single volume for many mounts instead of creating many volumes. For instance, a user can now use a single PersistentVolume to store the Mysql database and the document root of an Apache server of a LAMP stack pod by mapping them to different subPaths in this single volume.
Also solves https://github.com/kubernetes/kubernetes/issues/20466.
Automatic merge from submit-queue
Make ThirdPartyResource a root scoped object
ThirdPartyResource (the registration of a third party type) belongs at the cluster scope. It results in resource handlers installed in every namespace, and the same name in two namespaces collides (namespace is ignored when determining group/kind).
ThirdPartyResourceData (an actual instance of that type) is still namespace-scoped.
This PR moves ThirdPartyResource to be a root scope object. Someone previously using ThirdPartyResource definitions in alpha should be able to move them from namespace to root scope like this:
setup (run on 1.2):
```
kubectl create ns ns1
echo '{"kind":"ThirdPartyResource","apiVersion":"extensions/v1beta1","metadata":{"name":"foo.example.com"},"versions":[{"name":"v8"}]}' | kubectl create -f - --namespace=ns1
echo '{"kind":"Foo","apiVersion":"example.com/v8","metadata":{"name":"MyFoo"},"testkey":"testvalue"}' | kubectl create -f - --namespace=ns1
```
export:
```
kubectl get thirdpartyresource --all-namespaces -o yaml > tprs.yaml
```
remove namespaced kind registrations (this shouldn't remove the data of that type, which is another possible issue):
```
kubectl delete -f tprs.yaml
```
... upgrade ...
re-register the custom types at the root scope:
```
kubectl create -f tprs.yaml
```
Additionally, pre-1.3 clients that expect to read/write ThirdPartyResource at a namespace scope will not be compatible with 1.3+ servers, and 1.3+ clients that expect to read/write ThirdPartyResource at a root scope will not be compatible with pre-1.3 servers.
Introduce DescriberSettings for Describer display options
Introduce --show-events flag and DescriberSettings in Describer methods
Introduce unit-tests
Regenerated kubectl describe docs
Add events flag tests to test-cmd.sh
Signed-off-by: dhodovsk@redhat.com
Signed-off-by: jchaloup@redhat.com
Automatic merge from submit-queue
API changes for Cascading deletion
This PR includes the necessary API changes to implement cascading deletion with finalizers as proposed is in #23656. Comments are welcome.
@lavalamp @derekwaynecarr @bgrant0607 @rata @hongchaodeng
The codec factory should support two distinct interfaces - negotiating
for a serializer with a client, vs reading or writing data to a storage
form (etcd, disk, etc). Make the EncodeForVersion and DecodeToVersion
methods only take Encoder and Decoder, and slight refactoring elsewhere.
In the storage factory, use a content type to control what serializer to
pick, and use the universal deserializer. This ensures that storage can
read JSON (which might be from older objects) while only writing
protobuf. Add exceptions for those resources that may not be able to
write to protobuf (specifically third party resources, but potentially
others in the future).
Automatic merge from submit-queue
update kubectl apply help info
Please refer #22342 for more detail. @bgrant0607 ptal. Also I have open a PR to update docs on `kuberntes.github.io`
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kubectl rolling-update support for same image
Fixes#23497.
Enables `kubectl rolling-update --image` to the same image, adding a `--image-pull-policy` flag to remove ambiguity. This allows rolling-update to behave as an "update and/or restart" (https://github.com/kubernetes/kubernetes/issues/23497#issuecomment-212349730), or as a forced update when the same tag can mean multiple versions (e.g. `:latest`). cc @janetkuo @nikhiljindal
Automatic merge from submit-queue
Kubelet pod eviction proposal
The following is a proposal for how the `kubelet` may pro-actively fail a pod in response to local compute resources being starved. The proposal focuses on memory as a first candidate, and defines a `greedy` strategy for reclaiming starved resources on the node since it seemed easiest to describe for operators versus other options and probably satisfies a broad set of use case environments.
Putting this out now for community feedback, but anticipate some more refinement around how we report eviction configuration back to users in the `Node API`.
/cc @bgrant0607 @smarterclayton @vishh @dchen1107 @kubernetes/rh-cluster-infra @kubernetes/goog-node
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Add proposal for kubelet TLS bootstrap
A proposal based on the discussion of issue #18112, to implement a process by which kubelets can obtain TLS certificates in a streamlined manner.
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more explicit requirements for pre-commit hook
I don't know if using the pre-commit hook is still a best-practice, but godep and etcd are requirements for it to succeed.
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Provide flags to use etcd3 backed storage
ref: #24405
What's in this PR?
- Add a new flag "storage-backend" to choose "etcd2" or "etcd3". By default (i.e. empty), it's "etcd2".
- Take out etcd config code into a standalone package and let it create etcd2 or etcd3 storage backend given user input.
Automatic merge from submit-queue
Promote Pod Hostname & Subdomain to fields (were annotations)
Deprecating the podHostName, subdomain and PodHostnames annotations and created corresponding new fields for them on PodSpec and Endpoints types.
Annotation doc: #22564
Annotation code: #20688
Automatic merge from submit-queue
Cleans up line wrap at 80 cols and some minor editing issues
Address line wrap issue #1488. Also cleans up other minor editing issues in the docs/design/* tree such as spelling errors.
Signed-off-by: mikebrow <brownwm@us.ibm.com>
Automatic merge from submit-queue
Update configmap design doc
1. Update ConfigMapSelector -> ConfigMapKeySelector
2. Update apiVersion to v1
3. Fix error validating data: expected type array, for field spec.containers[0].command, got string; if you choose to ignore these errors, turn validation off with --validate=false
Automatic merge from submit-queue
Add flag -t as shorthand for --tty
`-t` was deprecated in #12813 (Aug. 2015, about 6+ months ago).
Now remove `--template`'s shorthand `-t` and create a shorthand `-t` for `--tty` in `kubectl run`.
@kubernetes/kubectl
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Add kubelet flags for eviction threshold configuration
This PR just adds the flags for kubelet eviction and the associated generated code.
I am happy to tweak text, but we can also do that later at this point in the release.
Since this causes codegen, I wanted to stage this first.
/cc @vishh @kubernetes/sig-node
Automatic merge from submit-queue
kubectl: Allow []byte config fields to be set by the cli
Allows []byte config fields such as 'certificate-authority-data' to be set using `kubectl config set` commands.
Automatic merge from submit-queue
Incorrect attribute - docs - pod-security-context
Pod definition had incorrect spelling on attribute `securityContext`
Also fixed the flow of Motivation introduction paragraph.
Automatic merge from submit-queue
updates to vagrant.md
Addresses issue #24259; merges in edits from the now deleted version of vagrant.md from the kubernetes.github.io/docs/getting-started-guides directory see PR
https://github.com/kubernetes/kubernetes.github.io/pull/294
Signed-off-by: mikebrow <brownwm@us.ibm.com>
Automatic merge from submit-queue
Remove requirement that Endpoints IPs be IPv4
Signed-off-by: André Martins <aanm90@gmail.com>
Release Note: The `Endpoints` API object now allows IPv6 addresses to be stored. Other components of the system are not ready for IPv6 yet, and many cloud providers are not IPv6 compatible, but installations that use their own controller logic can now store v6 endpoints.
Automatic merge from submit-queue
Enable protobuf compilation by default
Enables protobuf compilation, build verification checks, and generates all initial code.
kubectl is now 47M on OSX, build time from clean on a 2014 MBP (4 core) on Go 1.6 is ~150s.
@wojtek-t
Automatic merge from submit-queue
Proposal for improving local cluster experience.
This proposal attempts to improve the existing single node, local cluster experience in Kubernetes.
It is **not** a proposal that helps with setting up a multi-node, production cluster.
cc @dlorenc @ethernetdan @runseb @mfburnett @bgrant0607 @pwittrock
Automatic merge from submit-queue
Clarify api-group docs by a tiny bit.
I realize this area is in flux and the doc is out of date, but it's strictly better with this update than without?
Automatic merge from submit-queue
Make etcd cache size configurable
Instead of the prior 50K limit, allow users to specify a more sensible size for their cluster.
I'm not sure what a sensible default is here. I'm still experimenting on my own clusters. 50 gives me a 270MB max footprint. 50K caused my apiserver to run out of memory as it exceeded >2GB. I believe that number is far too large for most people's use cases.
There are some other fundamental issues that I'm not addressing here:
- Old etcd items are cached and potentially never removed (it stores using modifiedIndex, and doesn't remove the old object when it gets updated)
- Cache isn't LRU, so there's no guarantee the cache remains hot. This makes its performance difficult to predict. More of an issue with a smaller cache size.
- 1.2 etcd entries seem to have a larger memory footprint (I never had an issue in 1.1, even though this cache existed there). I suspect that's due to image lists on the node status.
This is provided as a fix for #23323
Automatic merge from submit-queue
Flexvolume: Add support for multiple secrets
This PR adds support to pass multiple secrets for flexvolume plugins.
To allow multiple secrets, secrets are now passed as:
"kubernetes.io/secret/id-rsa":"value-2\r\n\r\n","kubernetes.io/secret/id-rsa.pub":"value-1\r\n"
Automatic merge from submit-queue
Additional go vet fixes
Mostly:
- pass lock by value
- bad syntax for struct tag value
- example functions not formatted properly
Automatic merge from submit-queue
Minor doc edits to development.md
Noted a few small clarity issues going through the development guide and while it mentioned local builds, it was missing instructions for building on a local go developer environment.
Signed-off-by: mikebrow <brownwm@us.ibm.com>
Automatic merge from submit-queue
Sync up all release note related docs with the latest process/procedures
@eparis we also need to get the munger in line with the latest. I think we've stopped making changes at this point. #23743 is coming up but is an enhancement to the base procedures here.
cc @bgrant0607
Automatic merge from submit-queue
Add some info about binary downloads
This should be merged before `v1.2`. Useful information.
WDYT?
@wojtek-t @fgrzadkowski @zmerlynn @mikedanese @brendandburns @thockin
Automatic merge from submit-queue
Up to golang 1.6
A second attempt to upgrade go version above `go1.4`
Merge ASAP after you've cut the `release-1.2` branch and feel ready.
`go1.6` should perform slightly better than `go1.5`, so this time it might work
@gmarek @wojtek-t @zmerlynn @mikedanese @brendandburns @ixdy @thockin
Automatic merge from submit-queue
Move typed clients into clientset folder
Move typed clients from `pkg/client/typed/` to `pkg/client/clientset_generated/${clientset_name}/typed`.
The first commit changes the client-gen, the last commit updates the doc, other commits are just moving things around.
@lavalamp @krousey
Automatic merge from submit-queue
minor edits to testing guide
Noted a few small issues going through the getting started testing guide.
Cheers, Mike
Signed-off-by: mikebrow <brownwm@us.ibm.com>
Sync the examples with the scripts usage so we don't need to update this
doc with every new branch.
Supporting updates to docs/devel/pull-requests.md#release-notes.
Automatic merge from submit-queue
Add support for 3rd party objects to kubectl
@deads2k @jlowdermilk
Instructions for playing around with this:
Run an apiserver with third party resources turned on (`--runtime-config=extensions/v1beta1=true,extensions/v1beta1/thirdpartyresources=true`)
Then you should be able to:
```
kubectl create -f rsrc.json
```
```json
{
"metadata": {
"name": "foo.company.com"
},
"apiVersion": "extensions/v1beta1",
"kind": "ThirdPartyResource",
"versions": [
{
"apiGroup": "group",
"name": "v1"
},
{
"apiGroup": "group",
"name": "v2"
}
]
}
```
Once that is done, you should be able to:
```
curl http://<server>/apis/company.com/v1/foos
```
```
curl -X POST -d @${HOME}/foo.json http://localhost:8080/apis/company.com/v1/namespaces/default/foos
```
```json
{
"kind": "Foo",
"apiVersion": "company.com/v1",
"metadata": {
"name": "baz"
},
"someField": "hello world",
"otherField": 1
}
```
After this PR, you can do:
```
kubectl create -f foo.json
```
```
kubectl get foos
```
etc.
Automatic merge from submit-queue
rkt: bump rkt version to 1.2.1
Upon bumping the rkt version, `--hostname` is supported. Also we now gets the configs from the rkt api service, so `stage1-image` is deprecated.
cc @yujuhong @Random-Liu
Automatic merge from submit-queue
allow kubectl cmds to process files recursively, when given a dir
This PR accomplishes two things:
1. It creates a `--recursive` flag for use with certain `kubectl` commands that _currently_ do not process files beyond their first level of children, as seen in the issue https://github.com/kubernetes/kubernetes/issues/19767
2. It enables the ability to use the `--recursive` flag in the `kubectl` commands that currently _only_ support processing a directory up to its first level of children.
reqs:
- the kubectl cmd must support the -f | --filename flag
- the kubectl cmd must support visiting a dir one level deep,
or using more than one resource
Mostly doc updates and cruft removal
- describe conformance test policy and howto in e2e-tests.md
- rm e2e test info from testing.md in the name of DRY
- rm cluster/test-conformance.sh; unusable in release tar, not e2e.go
- update e2e test link in write-a-getting-started-guide.md
This reflects the actual state of things at the moment.
There is quite a bit of assumed knowledge here in a rapidly changing
(test) environment.
referencing #22672.
Here are a list of changes along with an explanation of how they work:
1. Add a new string field called TargetSelector to the external version of
extensions Scale type (extensions/v1beta1.Scale). This is a serialized
version of either the map-based selector (in case of ReplicationControllers)
or the unversioned.LabelSelector struct (in case of Deployments and
ReplicaSets).
2. Change the selector field in the internal Scale type (extensions.Scale) to
unversioned.LabelSelector.
3. Add conversion functions to convert from two external selector fields to a
single internal selector field. The rules for conversion are as follows:
i. If the target resource that this scale targets supports LabelSelector
(Deployments and ReplicaSets), then serialize the LabelSelector and
store the string in the TargetSelector field in the external version
and leave the map-based Selector field as nil.
ii. If the target resource only supports a map-based selector
(ReplicationControllers), then still serialize that selector and
store the serialized string in the TargetSelector field. Also,
set the the Selector map field in the external Scale type.
iii. When converting from external to internal version, parse the
TargetSelector string into LabelSelector struct if the string isn't
empty. If it is empty, then check if the Selector map is set and just
assign that map to the MatchLabels component of the LabelSelector.
iv. When converting from internal to external version, serialize the
LabelSelector and store it in the TargetSelector field. If only
the MatchLabel component is set, then also copy that value to
the Selector map field in the external version.
4. HPA now just converts the LabelSelector field to a Selector interface
type to list the pods.
5. Scale Get and Update etcd methods for Deployments and ReplicaSets now
return extensions.Scale instead of autoscaling.Scale.
6. Consequently, SubresourceGroupVersion override and is "autoscaling"
enabled check is now removed from pkg/master/master.go
7. Other small changes to labels package, fuzzer and LabelSelector
helpers to piece this all together.
8. Add unit tests to HPA targeting Deployments and ReplicaSets.
9. Add an e2e test to HPA targeting ReplicaSets.
Also register replicationcontrollers/scale subresource. Along with
registering the resource, also specify the cross-group override for the
subresource since Scale belongs belongs to autoscaling/v1 but
ReplicationController belongs to api/v1.
- Add README.md for node e2e tests
- Add support for --cleanup=false to leave test files on remote hosts and temporary instances for debugging
- Add ubuntu trusty instances for docker 1.8 and docker 1.9 to jenkins pr builder
- Disable coreos-beta for jenkins ci since it is failing - need to investigate
Documented manualSelector field.
Documented that you do not need to provide a selector
or unique labels with batch/v1 Job.
Updated all Job examples to apiVersion: batch/v1
Updated all Job examples to use generated selectors.
bridge-nf-call-iptables appears to only be relevant when the containers are
attached to a Linux bridge, which is usually the case with default Kubernetes
setups, docker, and flannel. That ensures that the container traffic is
actually subject to the iptables rules since it traverses a Linux bridge
and bridged traffic is only subject to iptables when bridge-nf-call-iptables=1.
But with other networking solutions (like openshift-sdn) that don't use Linux
bridges, bridge-nf-call-iptables may not be not relevant, because iptables is
invoked at other points not involving a Linux bridge.
The decision to set bridge-nf-call-iptables should be influenced by networking
plugins, so push the responsiblity out to them. If no network plugin is
specified, fall back to the existing bridge-nf-call-iptables=1 behavior.
k8s-merge-robot
