Automatic merge from submit-queue (batch tested with PRs 46201, 45952, 45427, 46247, 46062)
[Federation][kubefed]: Add support for etcd image override
This PR adds support for overriding the default etcd image used by ``kubefed init`` by providing an argument to ``--etcd-image``. This is primarily intended to allow consumers like openshift to provide a different default, but as a nice side-effect supports code-free validation of non-default etcd images.
**Release note**:
```release-note
'kubefed init' now supports overriding the default etcd image name with the --etcd-image parameter.
```
cc: @kubernetes/sig-federation-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 46022, 46055, 45308, 46209, 43590)
More cli sanity verifications
Adds some more `kubectl` command sanity checks to improve consistency and avoid the need of code reviews for some of our CLI style and standards.
**Release note**:
```release-note
NONE
```
@kubernetes/sig-cli-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 38990, 45781, 46225, 44899, 43663)
migrate set generation to go_genrule
Depends on https://github.com/kubernetes/release/pull/238
Automatic merge from submit-queue
Add protobuf binary version of OpenAPI spec
Fixes#45833
Partially fixes#42841
```release-note
OpenAPI spec is now available in protobuf binary and gzip format (with ETag support)
```
Automatic merge from submit-queue (batch tested with PRs 46033, 46122, 46053, 46018, 45981)
Command tree and exported env in kubectl plugins
This is part of `kubectl` plugins V1:
- Adds support to several env vars passing context information to the plugin. Plugins can make use of them to connect to the REST API, access global flags, get the path of the plugin caller (so that `kubectl` can be invoked) and so on. Exported env vars include
- `KUBECTL_PLUGINS_DESCRIPTOR_*`: the plugin descriptor fields
- `KUBECTL_PLUGINS_GLOBAL_FLAG_*`: one for each global flag, useful to access namespace, context, etc
- ~`KUBECTL_PLUGINS_REST_CLIENT_CONFIG_*`: one for most fields in `rest.Config` so that a REST client can be built.~
- `KUBECTL_PLUGINS_CALLER`: path to `kubectl`
- `KUBECTL_PLUGINS_CURRENT_NAMESPACE`: namespace in use
- Adds support for plugins as child of other plugins so that a tree of commands can be built (e.g. `kubectl myplugin list`, `kubectl myplugin add`, etc)
**Release note**:
```release-note
Added support to a hierarchy of kubectl plugins (a tree of plugins as children of other plugins).
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.
```
@kubernetes/sig-cli-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 45996, 46121, 45707, 46011, 45564)
add "admission" API group
This commit is an initial pass at providing an admission API group.
The API group is required by the webhook admission controller being
developed as part of https://github.com/kubernetes/community/pull/132
and could be used more as that proposal comes to fruition.
**Note:** This PR was created by following the [Adding an API Group](https://github.com/kubernetes/community/blob/master/contributors/devel/adding-an-APIGroup.md) documentation.
cc @smarterclayton
Automatic merge from submit-queue (batch tested with PRs 45996, 46121, 45707, 46011, 45564)
Remove flag `experimental-cri` in e2e-node test
Signed-off-by: Crazykev <crazykev@zju.edu.cn>
**What this PR does / why we need it**:
This patch remove deprecated flag in node e2e test script, cause kubelet already remove this. Leave this will make kubelet start failed.
**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**: /cc @feiskyer
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Add cblecker to hack/ reviewers
**What this PR does / why we need it**:
I've done a number of reviews in this part of the code base, and would like to continue helping out and formally be assigned PRs that change things in hack/
**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
```
This commit is an initial pass at providing an admission API group.
The API group is required by the webhook admission controller being
developed as part of https://github.com/kubernetes/community/pull/132
and could be used more as that proposal comes to fruition.
Automatic merge from submit-queue
kube-proxy: add --write-config-to flag
Add --write-config-to flag to kube-proxy to write the default configuration
values to the specified file location.
@deads2k suggested I create my own scheme for this, so I followed the example he shared with me. The only bit currently still referring to `api.Scheme` is where we create the event broadcaster recorder. In order to use the custom private scheme, I either have to pass it in to `NewProxyServer()`, or I have to make `NewProxyServer()` a member of the `Options` struct. If the former, then I probably need to export `Options.scheme`. Thoughts?
cc @mikedanese @sttts @liggitt @deads2k @smarterclayton @timothysc @kubernetes/sig-network-pr-reviews @kubernetes/sig-api-machinery-pr-reviews
```release-note
Add --write-config-to flag to kube-proxy to allow users to write the default configuration settings to a file.
```
Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)
remove useless flags from hack/verify-flags/known-flags.txt
Flags in known-flags.txt is used to check misspelling from "-" to "_" in
workspace, so a flag with out "-" should not show up in this file.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)
NodeRestriction admission plugin
Adds an optional `NodeRestriction` admission plugin that limits identifiable kubelets to mutating their own Node object, and Pod objects bound to their node.
This is the admission portion of https://github.com/kubernetes/community/blob/master/contributors/design-proposals/kubelet-authorizer.md and kubernetes/features#279
```release-note
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.
```
Automatic merge from submit-queue
let client-gen understand vendor
This is extracted from #44784, where we move external api types to k8s.io/api. After the move, the types will locate at vendor/k8s.io/api/xxx. However, gengo index the parsed package using the import path, which is stripped of the vendor/ prefix, so we'll need to strip the vendor/ prefix as necessary in client-gen.
This PR doesn't produce any change to the generated clientset yet since all types are still in the kubernetes repo.
Automatic merge from submit-queue
More owners from SIG-CLI
Adds SIG-CLI as reviewers and approvers of `cmd/clicheck/` and adds me + @pwittrock as approvers in `hack/` (mostly for `test-cmd` and some `hack/verify*.sh` and `hack/update*.sh` scripts).
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Make real proxier in hollow-proxy optional (default=true)
Ref https://github.com/kubernetes/kubernetes/pull/45622
This allows using real proxier for hollow proxy, but we use the fake one by default.
cc @kubernetes/sig-scalability-misc @wojtek-t @gmarek
Automatic merge from submit-queue
Remove the deprecated --babysit-daemons kubelet flag
```release-note
Removes the deprecated kubelet flag --babysit-daemons
```
This flag has been deprecated for over a year (git blame says marked deprecated on March 1, 2016).
Relatively easy removal - nothing in the Kubelet relies on it anymore.
There was still some stuff in the provisioning scripts. It was easy to rip out, but in general we probably need to be more disciplined about updating the provisioning scripts at the same time that we initially mark things deprecated.
Automatic merge from submit-queue
Move all API related annotations into annotation_key_constants.go
Separate from #45869. See https://github.com/kubernetes/kubernetes/pull/45869#discussion_r116839411 for details.
This PR does nothing but move constants around :)
/assign @caesarxuchao
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Disabling service-dns controller for federation kubectl tests
**What this PR does / why we need it**:
DNS was unnecessary to do kubectl tests against federation, but it was required earlier as service-controller would not start without initializing dns-provider. Now since we have the capability to disable service-dns controller, we no longer need to initialize federation-controller-manger with DNS specific stuff. So removing it.
Ref: https://github.com/kubernetes/kubernetes/pull/43136#issuecomment-287242198
**Release note**:
```
NONE
```
/cc @nikhiljindal @marun
@kubernetes/sig-federation-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 45709, 41939)
Add an AEAD encrypting transformer for storing secrets encrypted at rest
Tweak the ValueTransformer interface slightly to support additional
context information (to allow authenticated data to be generated by the
store and passed to the transformer). Add a prefix transformer that
looks for known matching prefixes and uses them. Add an AES GCM
transformer that performs AEAD on the values coming in and out of the
store.
Implementation of https://docs.google.com/document/d/1lFhPLlvkCo3XFC2xFDPSn0jAGpqKcCCZaNsBAv8zFdE/edit# and https://github.com/kubernetes/kubernetes/issues/12742
Automatic merge from submit-queue (batch tested with PRs 45884, 45879, 45912, 45444, 45874)
Use patched version of Go 1.8.1 to eliminate performance regression
Ref https://github.com/kubernetes/kubernetes/issues/45216
Until this is solved in Go (it's still unclear whether there will be patch release with the fix or not), this is solving the problem on our side.
Automatic merge from submit-queue (batch tested with PRs 45247, 45810, 45034, 45898, 45899)
Apiregistration v1alpha1→v1beta1
Promoting apiregistration api from v1alpha1 to v1beta1.
API Registration is responsible for registering an API `Group`/`Version` with
another kubernetes like API server. The `APIService` holds information
about the other API server in `APIServiceSpec` type as well as general
`TypeMeta` and `ObjectMeta`. The `APIServiceSpec` type have the main
configuration needed to do the aggregation. Any request coming for
specified `Group`/`Version` will be directed to the service defined by
`ServiceReference` (on port 443) after validating the target using provided
`CABundle` or skipping validation if development flag `InsecureSkipTLSVerify`
is set. `Priority` is controlling the order of this API group in the overall
discovery document.
The return status is a set of conditions for this aggregation. Currently
there is only one condition named "Available", if true, it means the
api/server requests will be redirected to specified API server.
```release-note
API Registration is now in beta.
```
Automatic merge from submit-queue (batch tested with PRs 45374, 44537, 45739, 44474, 45888)
Allow kcm and scheduler to lock on ConfigMaps.
**What this PR does / why we need it**:
Plumbs through the ability to lock on ConfigMaps through the kcm and scheduler.
**Which issue this PR fixes**
Fixes: #44857
Addresses issues with: #45415
**Special notes for your reviewer**:
**Release note**:
```
Add leader-election-resource-lock support to kcm and scheduler to allow for locking on ConfigMaps as well as Endpoints(default)
```
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews @jamiehannaford @bsalamat @mikedanese
Automatic merge from submit-queue (batch tested with PRs 45860, 45119, 44525, 45625, 44403)
[Federation] Move annotations and related parsing code as common code
This PR moves some code, which was duplicate, around as common code.
Changes the names of structures used for annotations to common names.
s/FederatedReplicaSetPreferences/ReplicaAllocationPreferences/
s/ClusterReplicaSetPreferences/PerClusterPreferences/
This can be reused in job controller and hpa controller code.
**Special notes for your reviewer**:
@kubernetes/sig-federation-misc
**Release note**:
```NONE
```
Automatic merge from submit-queue (batch tested with PRs 45860, 45119, 44525, 45625, 44403)
Support running StatefulSetBasic e2e tests with local-up-cluster
**What this PR does / why we need it**:
Currently StatefulSet(s) fail when you use local-up-cluster without
setting a cloud provider. In this PR, we use set the
kubernetes.io/host-path provisioner as the default provisioner when
there CLOUD_PROVIDER is not specified. This enables e2e test(s)
(specifically StatefulSetBasic) to work.
**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
```
