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clarifying CLI output
**What this PR does / why we need it**:
backporting documentation changes made to generated CLI documentation
so that the source is correct for updates to the documentation and
kubernetes website. This is part of what is needed to resolve
https://github.com/kubernetes/kubernetes.github.io/issues/5618
and is updated based on review feedback while fixing that bug at
https://github.com/kubernetes/kubernetes.github.io/pull/5824
**Which issue this PR fixes**
needed for full resolution of https://github.com/kubernetes/kubernetes.github.io/issues/5618, but will not fix it in itself due to generated documentation being stored as a separate process
**Special notes for your reviewer**:
Feedback on these changes originated from edits in the k8s docs repository and feedback to regenerated markdown to resolve them.
```release-note
NONE
```
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removes k8s.io/kubernetes/pkg/api dependency from the webhook plugin.
**What this PR does / why we need it**: removes `k8s.io/kubernetes/pkg/api` dependency from `webhook` plugin. The runtime.scheme can be injected to the webhook from the plugin initializer.
**Release note**:
```
NONE
```
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Move initializer plugin to the generic apiserver
* Moves `k8s.io/kuberentes/plugin/pkg/admission/initialization` to `k8s.io/apiserver/pkg/admission/plugin/initialization`
* Moves `k8s.io/kubernetes/pkg/kubeapiserver/admission/configuration` to `k8s.io/apiserver/pkg/admission/configuration`
* The initializer plugin used to depend on `k8s.io/kubernetes` because it does a type assertion of `api.Pod`. It tries to skip mirror pod. I converted that code to use the generic accessor pattern.
Command line flag API remains the same. This allows ComponentConfig
structures (e.g. KubeletConfiguration) to express the map structure
behind feature gates in a natural way when written as JSON or YAML.
For example:
KubeletConfiguration Before:
```
apiVersion: kubeletconfig/v1alpha1
kind: KubeletConfiguration
featureGates: "DynamicKubeletConfig=true,Accelerators=true"
```
KubeletConfiguration After:
```
apiVersion: kubeletconfig/v1alpha1
kind: KubeletConfiguration
featureGates:
DynamicKubeletConfig: true
Accelerators: true
```
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apimachinery: remove ObjectCopier interface(s)
The big commit is a mechanical, transitive removal of the copier interfaces in all structs and function calls.
move k8s.io/kubernetes/plugin/pkg/admission/initialization to
k8s.io/apiserver/pkg/admission/plugin/initialization/initialization.go;
move k8s.io/kubernetes/pkg/kubeapiserver/admission/configuration to
k8s.io/apiserver/pkg/admission/configuration.
This is part of the move to external cloud providers. Please see
plan detail in issue 50986. This PR covers step #2:
v1.9 - set no cloud provider as the default in kubelet but still allow
opt in for auto-detect
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Fix kubeadm command related typos, punctuation and capitalization
**What this PR does / why we need it**:
This PR deals with a numerous fixes of small punctuation, capitalization and wording typos in the kubeadm/app/cmd namespace. It cleans the output shown to the user in stdout.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
/approve no-issue
**Special notes for your reviewer**:
I can easily amend, remove or squash certain changes, so if you think there is a need for that - please, let me know.
Lubomir I. Ivanov (VMWare)
completion.go:
- use single space instead of double space after full stop
config.go:
- add full stop after output messages
- bring a WARNING into a new sentence
init.go:
- add full stop after output messages
- change 'couldn't' to 'could not'
- capitalize 'Kubernetes'
- reformat a sentence near '[externalca]'
join.go:
- add full stop after output messages
reset.go:
- add full stop after output messages
- capitalize 'Docker'
reset_test.go:
- use semi-colon near 'file/dir'
- change 'dir' to 'directory'
- change 'temp' to 'temporary'
token.go:
- break sentence into two
version.go:
- capitalize output string
- single-quote the list of output options
- fix typo in comment near RunVersion()
Signed-off-by: Lubomir I. Ivanov <lubomirivanov@vmware.com>
Automatic merge from submit-queue (batch tested with PRs 53278, 53184). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add API version apps/v1, and bump DaemonSet to apps/v1
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: kubernetes/features#484
**Special notes for your reviewer**: This PR targets `master`, as a backup if #53223 (targeting features branch) falls through
@kubernetes/sig-apps-api-reviews
**Release note**:
```release-note
Add API version apps/v1, and bump DaemonSet to apps/v1
```
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Add group by default to kubeadm token create
Changes the default when creating tokens to include the group that is used during `kubeadm init`. The most likely use of this function is to create/recreate tokens to use with `kubeadm join` so let's make that a default.
fixes https://github.com/kubernetes/kubeadm/issues/483
```release-note
Change `kubeadm create token` to default to the group that almost everyone will want to use. The group is system:bootstrappers:kubeadm:default-node-token and is the group that kubeadm sets up, via an RBAC binding, for auto-approval (system:certificates.k8s.io:certificatesigningrequests:nodeclient).
```
This is a cherry pick candidate for 1.8.1.
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Fix wrong deprecated option info
Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>
**What this PR does / why we need it**:
`--cleanup-iptables` is replaced by `--cleanup` not `--cleanup-proxyrules`
**Release note**:
```
None
```
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cmd: cloud-controller-manager: remove golint_failures entry
**What this PR does / why we need it**:
`cmd/cloud-controller-manager/app` and `cmd/cloud-controller-manager/app/options` currently appear in `.golint_failures`. We can lint these packages.
`golint` emits the following two warnings
```
comment on exported type CloudControllerManagerServer should be of the form "CloudControllerManagerServer ..."
comment on exported const ControllerStartJitter should be of the form "ControllerStartJitter ..."
```
Fix the documentation comments and remove entries from `.golint_failures`
**Special notes for your reviewer**:
Don't know which sig to label this PR with?
**Release note**:
```release-note
NONE
```
/kind cleanup
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Add check for IPv6 '::' when calculating kube-proxy's node IP
kube-proxy currently checks for a bind address of 0.0.0.0 (IPv4 all-zeros)
when calculating kube-proxy's node IP, but it does not check for
an address of '::' (IPv6 all-zeros). For either of those all-zeros
addresses, the node IP should be determined based on the hostname,
rather than using the address directly.
Also added a helpful log message when the kube-proxy protocol is
determined to be IPv6.
fixes#52613
**What this PR does / why we need it**:
This PR adds a check for a bind address of IPv6 '::' (all zeros) when kube-proxy is calculating its node IP,
similar to what is done for a bind address of IPv4 0.0.0.0. For either of these all-zeros addresses,
kube-proxy should derive the node IP based on the hostname, rather than use the bind address
directly.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#52613
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Change default --cert-dir for kubelet to a non-transient location
The default kubelet `--cert-dir` location is `/var/run/kubernetes`, which is automatically erased on reboot on many platforms. As of 1.8.0, kubelet TLS bootstrapping and cert rotation now persist files in `--cert-dir`, this should default to a non-transient location. Default it to the `pki` subfolder of the default `--root-dir` Fixes#53288
Additionally, since `kubeadm` expects a running (albeit crashlooping) kubelet prior to running `kubeadm init` or `kubeadm join`, and was using the default `--root-dir` of `/var/lib/kubelet`, it should not expect that folder to be empty as a pre-init check. Fixes https://github.com/kubernetes/kubernetes/issues/53356
```release-note
kubelet: `--cert-dir` now defaults to `/var/lib/kubelet/pki`, in order to ensure bootstrapped and rotated certificates persist beyond a reboot.
```
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removes Authorizer and ExternalClientSet from kubeapiserver's admissi…
**What this PR does / why we need it**:
removes Authorizer and ExternalClientSet from kubeapiserver's admission initializer.
**Release note**:
```
NONE
```
Automatic merge from submit-queue (batch tested with PRs 51765, 53053, 52771, 52860, 53284). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add an option for turning on/off compaction from apiserver in etcd3 mode
…erver
**What this PR does / why we need it**:
This commit adds an option for controlling request of compaction to
etcd3 from apiserver. There is a situation that apiserver cannot fully
own its etcd cluster (e.g. sharing it with canal). In such a case,
apiserver should have limited access in terms of etcd's auth
functionality so it don't have a privilege to issue compaction
requests. It means that the compaction requests should be issued by
other component and apiserver's compaction requests are needless.
For such use cases, this commit adds a new flag
storagebackend.Config.DoCompaction. If the flag is true (default),
apiserver issues the compaction requests like current behaviour. If it
is false, apiserver doesn't issue the requests.
**Related issue (etcd)**
https://github.com/coreos/etcd/issues/8458
/cc @xiang90 @struz
**Release note:**
```release-note
Add --etcd-compaction-interval to apiserver for controlling request of compaction to etcd3 from apiserver.
```
`.golint_failures` currently has an entry for `cmd/kubectl/app`. We can lint this package and remove
the entry. There is only one `golint` warning; comment on exported function Run should be of the
form "Run ..."
Fix documentation comment and remove `cmd/kubectl/app` from `.golint_failures`.
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Kubeadm: Change the marshal code to use ApiMachinery code.
**What this PR does / why we need it**:
The PR change the k8s obj marshaling to use ApiMachinery code instead of plain yaml.Marshal which is known to have some side-effect.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixeskubernetes/kubeadm#453
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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bazel: make //cmd/kubectl:kubectl binary publicly visible
**What this PR does / why we need it**: making the `kubectl` binary visible to the release rules only seems unnecessarily restrictive (x-ref https://github.com/bazelbuild/bazel/issues/3744) - I think making this publicly visible should be fine.
**Release note**:
```release-note
NONE
```
/assign @monopole
cc @achew22
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fix conditional for warning while starting KCM without secret file
@liggitt @spiffxp @lavalamp
Fixes#53291
A small bug was introduced in this PR - https://github.com/kubernetes/kubernetes/pull/50288, where the warning message is printed when the file is specified, and it is not printed if it is left blank - exactly the opposite of the intended behavior.
This fixes that.
```
release-note-none
```
Automatic merge from submit-queue (batch tested with PRs 49705, 53229). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix kubeadm upgrade grammar.
**What this PR does / why we need it**:
I noticed an erroneous word in the output from the kubeadm upgrade docs. This error message currently reads:
"Note: Before you **do** can perform this upgrade, you have to update kubeadm to..."
**Release note**:
```release-note
NONE
```
CC @kubernetes/sig-cluster-lifecycle-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 53234, 53252, 53267, 53276, 53107). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
kubeadm: Let kubelets in the cluster rotate their certificates
**What this PR does / why we need it**:
As of 1.8.0 kubelet in kubeadm configuration ships with enabled feature
of node certificate autorotation, it makes sense to enable automatic
certificate rotation csr signing. It will help to avoid issues like
described in #53231 and #53237.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53237.
**Special notes for your reviewer**:
We need that patch to be applied both to master branch and cherry-pick into 1.8, so kubeadm in 1.8.1 release will create correct role bindings on upgrades between 1.7 -> 1.8 and initialization of new clusters with 1.8.x
cc @luxas @liggitt @pipejakob
**Release note**:
```release-note
kubeadm allows the kubelets in the cluster to automatically renew their client certificates
```
As of 1.8.0 kubelet in kubeadm configuration ships with enabled feature
of node certificate autorotation, it makes sense to enable automatic
certificate rotation csr signing. It will help to avoid issues like
described in #53231 and #53237.
Automatic merge from submit-queue (batch tested with PRs 44596, 52708, 53163, 53167, 52692). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Fix --kube-reserved storage key name and add UTs for node allocatable reservation
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: part of #52463
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @jingxu97
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Add version info to kube-scheduler, kube-proxy and kubelet logs.
**What this PR does / why we need it**:
#46047 add such info to apiserver and CM. This adds version info to other binaries.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: related to #46047
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Fix#18155
Make HPA tolerance configurable as a flag. This change allows us to use
different tolerance values in production/testing.
Signed-off-by: mattjmcnaughton <mattjmcnaughton@gmail.com>
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Update kubelet's 'pod-manifest-path' description
Improved grammer of flag `pod-manifest-path` of kubelet
**What this PR does / why we need it**:
It updates the flag description which had an extra `to`, so this commit removes it.
/approve no-issue
```release-note
NONE
```
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exposes a method on AdmissionOptions
**What this PR does / why we need it**:
exposes a method on AdmissionOptions that will set default admission plugin names when none were provided from the command line.
**Release note**:
```
NONE
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Add a label which prevents a node from being added to a cloud load balancer
There are a variety of reasons that you may not want a node in a cluster to participate in a cloud load balancer. For example workload isolation for security, or managing network throughput, or because the node is not in the appropriate virtual network (cluster's that span environments)
This PR adds a label so that you can select which nodes you want to participate.
Automatic merge from submit-queue (batch tested with PRs 52630, 53110, 53136, 53075). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Note that all importing cloud-providers not required implementing out-of-tree cloud-provider
**What this PR does / why we need it**:
[The documentation indicates](https://github.com/kubernetes/kubernetes.github.io/pull/5400/files#diff-9585dc0efb0450fd68728e7511754717R29) that authors of of out-of-tree cloud providers should
> Use [main.go in cloud-controller-manager](https://github.com/kubernetes/kubernetes/blob/master/cmd/cloud-controller-manager/controller-manager.go) from Kubernestes core as a template for your main.go
This PR adds a comment to indicate that when doing so they do not need to import all in-tree cloud-providers. This mistake had been made in the OCI, DO, and Rancher CCMs.
**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
```
/cc @luxas @wlan0 @andrewsykim @jhorwit2
/area cloudprovider
/sig cluster-lifecycle
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Allow to use version labels in kubeadm upgrade apply command.
**What this PR does / why we need it**:
kubeadm upgrade apply now is able to utilize all possible combinations
of version argument, including labels (latest, stable-1.8, ci/latest-1.9)
as well as specific builds (v1.8.0-rc.1, ci/v1.9.0-alpha.1.123_01234567889)
As side effect, specifying exact build to deploy from CI area is now also
possible in kubeadm init command.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixeskubernetes/kubeadm#451
**Special notes for your reviewer**:
cc @luxas
**Release note**:
```release-note
- kubeadm init can now deploy exact build from CI area by specifying ID with "ci/" prefix. Example: "ci/v1.9.0-alpha.1.123+01234567889"
- kubeadm upgrade apply supports all standard ways of specifying version via labels. Examples: stable-1.8, latest-1.8, ci/latest-1.9 and similar.
```
Automatic merge from submit-queue (batch tested with PRs 50685, 53050, 52899, 52913, 53067). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Detect major version mismatches between kubeadm and kubelet.
**What this PR does / why we need it**:
Kubeadm supports only one minor release back, thus for 1.9 it requires minimum kubelet from 1.8.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixeskubernetes/kubeadm#430
**Special notes for your reviewer**:
**Release note**:
```release-note
- kubeadm 1.9 will detect and fail init or join pre-flight checks if kubelet is lower than 1.8.0-alpha
```
kubeadm upgrade apply now is able to utilize all possible combinations
of version argument, including labels (latest, stable-1.8, ci/latest-1.9)
as well as specific builds (v1.8.0-rc.1, ci/v1.9.0-alpha.1.123_01234567889)
As side effect, specifying exact build to deploy from CI area is now also
possible in kubeadm init command.
Fixes: kubernetes/kubeadm#451
kube-proxy currently checks for a bind address of 0.0.0.0 (IPv4 all-zeros)
when calculating kube-proxy's node IP, but it does not check for
an address of '::' (IPv6 all-zeros). For either of those all-zeros
addresses, the node IP should be determined based on the hostname,
rather than using the address directly.
Also added a helpful log message when the kube-proxy protocol is
determined to be IPv6.
fixes#52613
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
kubelet: remove the --docker-exec-handler flag
Stop supporting the "nsenter" exec handler. Only the Docker native exec
handler is supported.
The flag was deprecated in Kubernetes 1.6 and is safe to remove
in Kubernetes 1.9 according to the deprecation policy.
**What this PR does / why we need it**:
**Which issue this PR fixes** : fixes#40229
**Special notes for your reviewer**:
N/A
**Release note**:
```release-note
Remove the --docker-exec-handler flag. Only native exec handler is supported.
```
Automatic merge from submit-queue (batch tested with PRs 52751, 52898, 52633, 52611, 52609). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Add default value for RouteReconciliationPeriod in cloud controller manager
**What this PR does / why we need it**:
Add default sync period value config for RouteReconciliationPeriod. For now the default value is 0, which means zero cooldown time.
The value is taken from kube-controller-manager:
b2b079b95a/cmd/kube-controller-manager/app/options/options.go (L73)
**Which issue this PR fixes**
**Special notes for your reviewer**:
**Release note**:
Automatic merge from submit-queue (batch tested with PRs 52880, 52855, 52761, 52885, 52929). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Remove cloud provider rackspace
**What this PR does / why we need it**:
For now, we have to implement functions in both `rackspace` and `openstack` packages if we want to add function for cinder, for example [resize for cinder](https://github.com/kubernetes/kubernetes/pull/51498). Since openstack has implemented all the functions rackspace has, and rackspace is considered deprecated for a long time, [rackspace deprecated](https://github.com/rackspace/gophercloud/issues/592) ,
after talking with @mikedanese and @jamiehannaford offline , i sent this PR to remove `rackspace` in favor of `openstack`
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#52854
**Special notes for your reviewer**:
**Release note**:
```release-note
The Rackspace cloud provider has been removed after a long deprecation period. It was deprecated because it duplicates a lot of the OpenStack logic and can no longer be maintained. Please use the OpenStack cloud provider instead.
```
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bazel: build/test almost everything
**What this PR does / why we need it**: Miscellaneous cleanups and bug fixes. The main motivating idea here was to make `bazel build //...` and `bazel test //...` mostly work. (There's a few reasons these still don't work, but we're a lot closer.)
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
/assign @BenTheElder @mikedanese @spxtr
Automatic merge from submit-queue (batch tested with PRs 50068, 52406, 52394, 48551, 52131). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
remove unless healthz.DefaultHealthz() in controller-manager
**What this PR does / why we need it**:
remove unless healthz.DefaultHealthz() in controller-manager
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#52405
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52485, 52443, 52597, 52450, 51971). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Some kubelet flags do not accept their default values
Correct the flags and add a round trip test that ensure these do not
break again in the future.
@deads2k as observed when we tried to turn flags into args.
Automatic merge from submit-queue (batch tested with PRs 52355, 52537, 52551, 52403, 50673). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Clear TODO: Adding UT for loading ipvs config
**What this PR does / why we need it**:
Clear TODO: Adding UT for loading ipvs config
**Which issue this PR fixes**:
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52445, 52380, 52516, 52531, 52538). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Remove warning about changes in default token TTLs
**What this PR does / why we need it**:
It was planned for 1.9 cleanup to remove that warning, as change was
done few release cycles ago and users should be already aware of it.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixeskubernetes/kubeadm#346
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52445, 52380, 52516, 52531, 52538). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
remove repeated import'k8s.io/client-go/kubernetes' in controllermana…
**What this PR does / why we need it**:
There are duplicate importing "k8s.io/client-go/kubernetes", we just need 'clientset'.
**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
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Add more test coverage for kubeadm uploadconfig especially with idemp…
**What this PR does / why we need it**:
This PR adds more test case for Kubeadm uploadconfig, particularly to address some feedback in #51482
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes #kubernetes/kubeadm#379
**Special notes for your reviewer**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 52240, 48145, 52220, 51698, 51777). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
add lease endpoint reconciler
**What this PR does / why we need it**: Adds OpenShift's LeaseEndpointReconciler to register kube-apiserver endpoints within the storage registry.
Adds a command-line argument `alpha-endpoint-reconciler-type` to the kube-apiserver.
Defaults to the old MasterCount reconciler.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixeskubernetes/community#939fixeskubernetes/kubernetes#22609
**Release note**:
```release-note
Adds a command-line argument to kube-apiserver called
--alpha-endpoint-reconciler-type=(master-count, lease, none) (default
"master-count"). The original reconciler is 'master-count'. The 'lease'
reconciler uses the storageapi and a TTL to keep alive an endpoint within the
`kube-apiserver-endpoint` storage namespace. The 'none' reconciler is a noop
reconciler that does not do anything. This is useful for self-hosted
environments.
```
/cc @lavalamp @smarterclayton @ncdc
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
Modify `apimachinery` imports using `staging`
**What this PR does / why we need it**:
Currently some of the imports of `apimachinery` use
`k8s.io/kubernetes/staging/src/k8s.io/apimachinery...`. Replace
these with `k8s.io/apimachinery`, as is in use throughout the rest
of the code base.
Signed-off-by: mattjmcnaughton <mattjmcnaughton@gmail.com>
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 50378, 51463, 50006, 51962, 51673). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
adding kube-controller-manager starting option tests
**What this PR does / why we need it**:
The unit test for kube-controller-manager is missing in `cmd/kube-controller-manager/app/options`. I have added a unit test for checking kube-controller-manager starting options, which is similar to the unit test in `cmd/kube-apiserver/app/options/options_test.go`. This PR https://github.com/kubernetes/kubernetes/pull/49092 can be seen as a reference.
**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**:
`NONE`
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
remove duplicated import
**What this PR does / why we need it**:
**Which issue this PR fixes** : fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
kubeadm: Use the release-1.8 branch by default
**What this PR does / why we need it**:
In line with https://github.com/kubernetes/kubeadm/blob/master/docs/release-cycle.md, the default branch for kubeadm to deploy should be bumped right before the `rc.1`.
This can even be manually merged by the someone from the release team.
Adding do-not-merge until we're ready for the release candidate.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes: https://github.com/kubernetes/kubeadm/issues/427
**Special notes for your reviewer**:
**Release note**:
```release-note
kubeadm: Use the release-1.8 branch by default
```
@kubernetes/sig-cluster-lifecycle-pr-reviews @kubernetes/kubernetes-release-managers
Stop supporting the "nsenter" exec handler. Only the Docker native exec
handler is supported.
The flag was deprecated in Kubernetes 1.6 and is safe to remove
in Kubernetes 1.9 according to the deprecation policy.
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>..
deprecate warning for persistent volume admission controller
**What this PR does / why we need it**:
deprecate warning for persistent volume admission controller
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
Fixes#52617
**Special notes for your reviewer**:
**Release note**:
```release-note
PersistentVolumeLabel admission controller is now deprecated.
```
Kubernetes Submit Queue