Automatic merge from submit-queue
bazel: stamp multiple packages by using x_defs instead of linkstamp in go_binary rules
**What this PR does / why we need it**: Fixes regression introduced sometime in the last few months that prevented bazel-built clusters from identifying version properly.
It does so by updating the bazelbuild/rules_go and kubernetes/repo-infra dependencies to support using stamp values in `go_binary` `x_defs`, and then changing our `go_binary` rules to use `x_defs` instead of `linkstamp`.
This whole charade is necessary because we need to stamp version information in multiple packages.
This pretty much only affects the bazel build, so it should be low risk.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#45298
**Special notes for your reviewer**: depends on https://github.com/kubernetes/repo-infra/pull/18; should not be merged before it.
**Release note**:
```release-note
NONE
```
/assign @spxtr @mikedanese
Automatic merge from submit-queue (batch tested with PRs 46979, 47078, 47138, 46916)
Add a secretbox and AES-CBC path for encrypt at rest
Add a secretbox and AES-CBC encrypt at rest provider and alter the config, based on feedback from security review. AES-CBC is more well reviewed and generally fits better with common criteria and FIPS, secretbox is newer and faster than CBC.
```release-note
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.
```
Automatic merge from submit-queue (batch tested with PRs 47024, 47050, 47086, 47081, 47013)
apiextensions-apiserver: Fix decoding of DeleteOptions.
Fixes#47072 by making apiextensions-apiserver capable of decoding unversioned DeleteOptions, rather than only handling Unstructured objects (i.e. Custom Resources).
This also closes#46736 and #37554 since the added regression test works for TPR as well.
Automatic merge from submit-queue (batch tested with PRs 47024, 47050, 47086, 47081, 47013)
client-go: deprecate TPR example and add CRD example
/cc @nilebox
Part of https://github.com/kubernetes/kubernetes/issues/46702
Automatic merge from submit-queue (batch tested with PRs 46235, 44786, 46833, 46756, 46669)
implements StatefulSet update
**What this PR does / why we need it**:
1. Implements rolling update for StatefulSets
2. Implements controller history for StatefulSets.
3. Makes StatefulSet status reporting consistent with DaemonSet and ReplicaSet.
https://github.com/kubernetes/features/issues/188
**Special notes for your reviewer**:
**Release note**:
```release-note
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
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.
```
Automatic merge from submit-queue (batch tested with PRs 46235, 44786, 46833, 46756, 46669)
federation: Add admission controller for policy-based placement
@nikhiljindal
Here's the initial version of the scheduling policy admission controller. It's at the point where it would benefit from having another pair of eyes look at it. The main thing I'm unsure of is the serialization of Kube resources for the webhook/query call.
Release Note:
```
The federation-apiserver now supports a SchedulingPolicy admission controller that enables policy-based control over placement of federated resources.
```
Ref #39982
Automatic merge from submit-queue (batch tested with PRs 46967, 46992, 43338, 46717, 46672)
Add group alias names to API resources to allow discovery
**What this PR does / why we need it**:
Adds `GroupNames []string` to API resources, which represents the list of group aliases that every resource belongs to.
Partially fixes https://github.com/kubernetes/kubernetes/issues/41353
This moves the logic of "all" (which currently [translates](fbc94c0896/pkg/kubectl/cmd/util/shortcut_restmapper.go (L106)) to "pods,replicationcontrollers,services,...") to the server-side. Will allow clients like `kubectl` to discover group aliases instead of having it hardcoded and the API server to better handle consistency across multiple clients, version skew, etc; and will make "all" un-special and allow other groups to be created.
As a follow-up we'll patch `kubectl` to make groups aliases discoverable and the hardcoded list a fallback while we still have to support it.
Related to https://github.com/kubernetes/kubernetes/pull/42595#issuecomment-286839885.
**Release note**:
```release-note
Adds the `Categories []string` field to API resources, which represents the list of group aliases (e.g. "all") that every resource belongs to.
```
@kubernetes/sig-api-machinery-misc @deads2k @bgrant0607
Automatic merge from submit-queue (batch tested with PRs 46972, 42829, 46799, 46802, 46844)
promote tls-bootstrap to beta
last commit of this PR.
Towards https://github.com/kubernetes/kubernetes/issues/46999
```release-note
Promote kubelet tls bootstrap to beta. Add a non-experimental flag to use it and deprecate the old flag.
```
Automatic merge from submit-queue (batch tested with PRs 46550, 46663, 46816, 46820, 46460)
Add configuration for encryption providers
## Additions
Allows providing a configuration file (using flag `--experimental-encryption-provider-config`) to use the existing AEAD transformer (with multiple keys) by composing mutable transformer, prefix transformer (for parsing providerId), another prefix transformer (for parsing keyId), and AES-GCM transformers (one for each key). Multiple providers can be configured using the configuration file.
Example configuration:
```
kind: EncryptionConfig
apiVersion: v1
resources:
- resources:
- namespaces
providers:
- aes:
keys:
- name: key1
secret: c2vjcmv0iglzihnly3vyzq==
- name: key2
secret: dghpcybpcybwyxnzd29yza==
- identity: {}
```
Need for configuration discussed in:
#41939
[Encryption](3418b4e4c6/contributors/design-proposals/encryption.md)
**Pathway of a read/write request**:
1. MutableTransformer
2. PrefixTransformer reads the provider-id, and passes the request further if that matches.
3. PrefixTransformer reads the key-id, and passes the request further if that matches.
4. GCMTransformer tries decrypting and authenticating the cipher text in case of reads. Similarly for writes.
## Caveats
1. To keep the command line parameter parsing independent of the individual transformer's configuration, we need to convert the configuration to an `interface{}` and manually parse it in the transformer. Suggestions on better ways to do this are welcome.
2. Flags `--encryption-provider` and `--encrypt-resource` (both mentioned in [this document](3418b4e4c6/contributors/design-proposals/encryption.md) ) are not supported in this because they do not allow more than one provider, and the current format for the configuration file possibly supersedes their functionality.
3. Currently, it can be tested by adding `--experimental-encryption-provider-config=config.yml` to `hack/local-up-cluster.sh` on line 511, and placing the above configuration in `config.yml` in the root project directory.
Previous discussion on these changes:
https://github.com/sakshamsharma/kubernetes/pull/1
@jcbsmpsn @destijl @smarterclayton
## TODO
1. Investigate if we need to store keys on disk (per [encryption.md](3418b4e4c6/contributors/design-proposals/encryption.md (option-1-simple-list-of-keys-on-disk)))
2. Look at [alpha flag conventions](https://github.com/kubernetes/kubernetes/blob/master/pkg/features/kube_features.go)
3. Need to reserve `k8s:enc` prefix formally for encrypted data. Else find a better way to detect transformed data.
Automatic merge from submit-queue
Add initializer support to admission and uninitialized filtering to rest storage
Initializers are the opposite of finalizers - they allow API clients to react to object creation and populate fields prior to other clients seeing them.
High level description:
1. Add `metadata.initializers` field to all objects
2. By default, filter objects with > 0 initializers from LIST and WATCH to preserve legacy client behavior (known as partially-initialized objects)
3. Add an admission controller that populates .initializer values per type, and denies mutation of initializers except by certain privilege levels (you must have the `initialize` verb on a resource)
4. Allow partially-initialized objects to be viewed via LIST and WATCH for initializer types
5. When creating objects, the object is "held" by the server until the initializers list is empty
6. Allow some creators to bypass initialization (set initializers to `[]`), or to have the result returned immediately when the object is created.
The code here should be backwards compatible for all clients because they do not see partially initialized objects unless they GET the resource directly. The watch cache makes checking for partially initialized objects cheap. Some reflectors may need to change to ask for partially-initialized objects.
```release-note
Kubernetes resources, when the `Initializers` admission controller is enabled, can be initialized (defaulting or other additive functions) by other agents in the system prior to those resources being visible to other clients. An initialized resource is not visible to clients unless they request (for get, list, or watch) to see uninitialized resources with the `?includeUninitialized=true` query parameter. Once the initializers have completed the resource is then visible. Clients must have the the ability to perform the `initialize` action on a resource in order to modify it prior to initialization being completed.
```
Automatic merge from submit-queue (batch tested with PRs 46239, 46627, 46346, 46388, 46524)
Dynamic webhook admission control plugin
Unit tests pass.
Needs plumbing:
* [ ] service resolver (depends on @wfender PR)
* [x] client cert (depends on ????)
* [ ] hook source (depends on @caesarxuchao PR)
Also at least one thing will need to be renamed after Chao's PR merges.
```release-note
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.
```
Automatic merge from submit-queue (batch tested with PRs 46801, 45184, 45930, 46192, 45563)
Exclude dockerized verify patterns
**What this PR does / why we need it**:
Change some of the `make verify` logic to allow excluding based on a pattern. Add the `verify-*-dockerized.sh` pattern to the excluded list.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 46801, 45184, 45930, 46192, 45563)
Tweak client-gen to support metrics API
This PR adds support to client-gen for readonly APIs as well as for customizing the resource name used for a given type.
This is required to support the clients generated for `k8s.io/metrics/pkg/apis/metrics`.
cc @caesarxuchao
Currently based on #45180
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 46432, 46701, 46326, 40848, 46396)
Add a server side Get operation
Implement proposal kubernetes/community#363
```release-note
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`.
```
Add location transformer, config for transformers
Location transformer helps choose the most specific transformer for
read/write operations depending on the path of resource being accessed.
Configuration allows use of --experimental-encryption-provider-config
to set up encryption providers. Only AEAD is supported at the moment.
Add new files to BUILD, AEAD => k8s-aes-gcm
Use group resources to select encryption provider
Update tests for configuration parsing
Remove location transformer
Allow specifying providers per resource group in configuration
Add IdentityTransformer configuration option
Fix minor issues with initial AEAD implementation
Unified parsing of all configurations
Parse configuration using a union struct
Run configuration parsing in APIserver, refactor parsing
More gdoc, fix minor bugs
Add test coverage for combined transformers
Use table driven tests for encryptionconfig
Automatic merge from submit-queue
apiserver: add a webhook implementation of the audit backend
This builds off of #45315 and is intended to implement an interfaced defined in #45766.
TODO:
- [x] Rebase on top of API types PR.
- [x] Rebase on top of API types updates (#46065)
- [x] Rebase on top of feature flag (#46009)
- [x] Rebase on top of audit instrumentation.
- [x] Hook up API server flag or register plugin (depending on #45766)
Features issue https://github.com/kubernetes/features/issues/22
Design proposal https://github.com/kubernetes/community/blob/master/contributors/design-proposals/auditing.md
```release-notes
Webhook added to the API server which omits structured audit log events.
```
/cc @soltysh @timstclair @soltysh @deads2k
Automatic merge from submit-queue
Set Kubelet Disk Defaults for the 1.7 release
The `--low-diskspace-threshold-mb` flag has been depreciated since 1.6.
This PR sets the default to `0`, and sets defaults for disk eviction based on the values used for our [e2e tests](https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/services/kubelet.go#L145).
This also removes the custom defaults for vagrant, as the new defaults should work for it as well.
/assign @derekwaynecarr
cc @vishh
```release-note
By default, --low-diskspace-threshold-mb is not set, and --eviction-hard includes "nodefs.available<10%,nodefs.inodesFree<5%"
```
Automatic merge from submit-queue
Disable all alpha feature gates by default in local-up-cluster.sh
**What this PR does / why we need it**:
Disable all alpha feature gates by default in local-up-cluster.sh
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#46691
**Special notes for your reviewer**:
**Release note**:
```
None
```
Automatic merge from submit-queue
hack/verify-staging-imports.sh: simplify by negating package list
The forbidden list of repos got lengthy. The inverse is much shorter and easiert to maintain.
Automatic merge from submit-queue (batch tested with PRs 43505, 45168, 46439, 46677, 46623)
Add TPR to CRD migration helper.
This is a helper for migrating TPR data to CustomResource. It's rather hacky because it requires crossing apiserver boundaries, but doing it this way keeps the mess contained to the TPR code, which is scheduled for deletion anyway.
It's also not completely hands-free because making it resilient enough to be completely automated is too involved to be worth it for an alpha-to-beta migration, and would require investing significant effort to fix up soon-to-be-deleted TPR code. Instead, this feature will be documented as a best-effort helper whose results should be verified by hand.
The intended benefit of this over a totally manual process is that it should be possible to copy TPR data into a CRD without having to tear everything down in the middle. The process would look like this:
1. Upgrade to k8s 1.7. Nothing happens to your TPRs.
1. Create CRD with group/version and resource names that match the TPR. Still nothing happens to your TPRs, as the CRD is hidden by the overlapping TPR.
1. Delete the TPR. The TPR data is converted to CustomResource data, and the CRD begins serving at the same REST path.
Note that the old TPR data is left behind by this process, so watchers should not receive DELETE events. This also means the user can revert to the pre-migration state by recreating the TPR definition.
Ref. https://github.com/kubernetes/kubernetes/issues/45728
Automatic merge from submit-queue (batch tested with PRs 46686, 45049, 46323, 45708, 46487)
[Federation][kubefed]: Use StorageClassName for etcd pvc
This PR updates kubefed to use the StorageClassName field [added in 1.6](http://blog.kubernetes.io/2017/03/dynamic-provisioning-and-storage-classes-kubernetes.html
) for etcd's pvc to allow the user to specify which storage class they want to use. If no value is provided to ``kubefed init``, the field will not be set, and initialization of the pvc may fail on a cluster without a default storage class configured.
The alpha annotation that was previously used (``volume.alpha.kubernetes.io/storage-class``) was deprecated as of 1.4 according to the following blog post:
http://blog.kubernetes.io/2016/10/dynamic-provisioning-and-storage-in-kubernetes.html
**Release note**:
```
'kubefed init' has been updated to support specification of the storage class (via --etcd-pv-storage-class) for the Persistent Volume Claim (PVC) used for etcd storage. If --etcd-pv-storage-class is not specified, the default storage class configured for the cluster will be used.
```
cc: @kubernetes/sig-federation-pr-reviews
To properly register the types in the admission API group we need to
create an "install" package and wire it up. This is required by the
webhook admission controller being developed as part of
https://github.com/kubernetes/community/pull/132
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