Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
cloud-ctrl-mgr: enable secure port 10258
This PR enables authn+authz (delegated to the kube-apiserver) and the secure port 10258 for the cloud-controller-manager. In addition, the insecure port is disabled.
This is the counterpart PR to https://github.com/kubernetes/kubernetes/pull/64149.
Moreover, it adds integration test coverage for the `--port` and `--secure-port` flags, plus the testserver infrastructure to tests flags in general inside integration tests.
```release-note
Enable secure serving on port 10258 to cloud-controller-manager (configurable via `--secure-port`). Delegated authentication and authorization have to be configured like for aggregated API servers.
```
Automatic merge from submit-queue (batch tested with PRs 64283, 67910, 67803, 68100). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
CSI Cluster Registry and Node Info CRDs
**What this PR does / why we need it**:
Introduces the new `CSIDriver` and `CSINodeInfo` API Object as proposed in https://github.com/kubernetes/community/pull/2514 and https://github.com/kubernetes/community/pull/2034
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/kubernetes/features/issues/594
**Special notes for your reviewer**:
Per the discussion in https://groups.google.com/d/msg/kubernetes-sig-storage-wg-csi/x5CchIP9qiI/D_TyOrn2CwAJ the API is being added to the staging directory of the `kubernetes/kubernetes` repo because the consumers will be attach/detach controller and possibly kubelet, but it will be installed as a CRD (because we want to move in the direction where the API server is Kubernetes agnostic, and all Kubernetes specific types are installed).
**Release note**:
```release-note
Introduce CSI Cluster Registration mechanism to ease CSI plugin discovery and allow CSI drivers to customize Kubernetes' interaction with them.
```
CC @jsafrane
Automatic merge from submit-queue (batch tested with PRs 64283, 67910, 67803, 68100). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Kubeadm Cert Renewal
**What this PR does / why we need it**:
adds explicit support for renewal of certificates via command
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixeskubernetes/kubeadm#206
**Special notes for your reviewer**:
The targeted documentation is at kubernetes/website#9712
**Release note**:
```release-note
Adds the commands `kubeadm alpha phases renew <cert-name>`
```
This is the old behaviour and we did not intent to change it due to enabled authn/z in general.
As the kube-apiserver this sets the "system:unsecured" user info.
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Change CPU sample sanitization in HPA.
**What this PR does / why we need it**:
Change CPU sample sanitization in HPA.
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
**Release notes:**
```release-note
Improve CPU sample sanitization in HPA by taking metric's freshness into account.
```
Automatic merge from submit-queue (batch tested with PRs 67756, 64149, 68076, 68131, 68120). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Update manifest and version for CoreDNS
**What this PR does / why we need it**:
Updates the manifest of CoreDNS and also bumps the version of CoreDNS to 1.2.2
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes https://github.com/kubernetes/kubernetes/issues/68020
**Special notes for your reviewer**:
**Release note**:
```release-note
CoreDNS is now v1.2.2 for Kubernetes 1.12
```
Automatic merge from submit-queue (batch tested with PRs 67756, 64149, 68076, 68131, 68120). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
kube-ctrl-mgr: enable secure port 10257
This PR enables authn+authz (delegated to the kube-apiserver) and the secure port 10257 for the kube-controller-manager. In addition, the insecure port is disabled.
Moreover, it adds integration test coverage for the `--port` and `--secure-port` flags, plus the testserver infrastructure to tests flags in general inside integration tests.
```release-note
Enable secure serving on port 10257 to kube-controller-manager (configurable via `--secure-port`). Delegated authentication and authorization have to be configured like for aggregated API servers.
```
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Add function comment to fix golint error in cmd/kube-scheduler/app.
**What this PR does / why we need it**:
Add function comment to fix golint error in cmd/kube-scheduler/app.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
NONE
**Special notes for your reviewer**:
NONE
**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 here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Refactor admission webhook client code to a apiserver/pkg/util package
As part of #67006 This refactoring enable us to share code between admission webhooks and CRD conversion webhooks.
@deads2k @lavalamp @sttts @kubernetes/sig-api-machinery-misc
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
This is the old behaviour and we did not intent to change it due to enabled authn/z in general.
As the kube-apiserver this sets the "system:unsecured" user info.
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: Drop arch suffixes
**What this PR does / why we need it**:
This change removes arch suffixes from control plane images (etcd, kube-apiserver, kube-scheduler, kube-proxy, etc.). These are not needed, as almost all control plane images have a fat manifest now. It also adds a missing unit test for `GetGenericImage`
We have arch suffixes only for kube-dns images now.
Sample output of `kubeadm config images pull` with this change:
```
$ ./_output/bin/kubeadm config images pull
[config/images] Pulled k8s.gcr.io/kube-apiserver:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-controller-manager:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-scheduler:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-proxy:v1.11.1
[config/images] Pulled k8s.gcr.io/pause:3.1
[config/images] Pulled k8s.gcr.io/etcd:3.2.18
[config/images] Pulled k8s.gcr.io/coredns:1.1.3
$ ./_output/bin/kubeadm config images pull --feature-gates=CoreDNS=false
[config/images] Pulled k8s.gcr.io/kube-apiserver:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-controller-manager:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-scheduler:v1.11.1
[config/images] Pulled k8s.gcr.io/kube-proxy:v1.11.1
[config/images] Pulled k8s.gcr.io/pause:3.1
[config/images] Pulled k8s.gcr.io/etcd:3.2.18
[config/images] Pulled k8s.gcr.io/k8s-dns-kube-dns-amd64:1.14.10
[config/images] Pulled k8s.gcr.io/k8s-dns-sidecar-amd64:1.14.10
[config/images] Pulled k8s.gcr.io/k8s-dns-dnsmasq-nanny-amd64:1.14.10
```
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Refs kubernetes/kubeadm#1030kubernetes/kubeadm#51
**Special notes for your reviewer**:
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews
/area kubeadm
/kind feature
/assign @luxas
/assign @timothysc
/assign @dims
/assign @neolit123
**Release note**:
```release-note
kubeadm: Control plane images (etcd, kube-apiserver, kube-proxy, etc.) don't use arch suffixes. Arch suffixes are kept for kube-dns only.
```
Automatic merge from submit-queue (batch tested with PRs 67694, 64973, 67902). 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>.
SCTP support implementation for Kubernetes
**What this PR does / why we need it**: This PR adds SCTP support to Kubernetes, including Service, Endpoint, and NetworkPolicy.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes#44485
**Special notes for your reviewer**:
**Release note**:
```release-note
SCTP is now supported as additional protocol (alpha) alongside TCP and UDP in Pod, Service, Endpoint, and NetworkPolicy.
```
This change removes arch suffixes from control plane images (etcd,
kube-apiserver, kube-scheduler, kube-proxy, etc.). These are not needed, as
almost all control plane images have a fat manifest now.
We have arch suffixes only for kube-dns images now.
Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>
Automatic merge from submit-queue (batch tested with PRs 64597, 67854, 67734, 67917, 67688). 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>.
Move kubeproxy ComponentConfig external types to `k8s.io/kube-proxy`
**What this PR does / why we need it**:
This PR implements most of kubernetes/community#2354 for the kube-proxy.
The PR:
- Moves k8s.io/kubernetes/pkg/proxy/apis/kubeproxyconfig as-is to k8s.io/kubernetes/pkg/proxy/apis/config as agreed
- Moves the external types to the new staging repo k8s.io/kube-proxy, in the k8s.io/kube-proxy/config/v1beta1 package.
- Makes k8s.io/kubernetes/pkg/proxy/apis/config/v1beta1 source the types from k8s.io/kube-proxy/config/v1beta1. The defaulting and conversion code is kept in this package as before.
- All references to these packages have been updated.
Ref #67233
**Special notes for your reviewer**:
**Release note**:
```release-note
kube-proxy v1beta1 external ComponentConfig types are now available in the `k8s.io/kube-proxy` repo
```
Automatic merge from submit-queue (batch tested with PRs 64597, 67854, 67734, 67917, 67688). 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 unused kubelet dependency
**What this PR does / why we need it**:
Cleanup unused `ExternalKubeClient`. I think it's a vestige of when the Kubelet still used the internal types.
**Release note**:
```release-note
NONE
```
/kind cleanup
/sig node
/assign @mtaufen
Automatic merge from submit-queue (batch tested with PRs 66085, 66052). 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>.
use pause image with fat-manifest
What this PR does / why we need it:
Pause manifest code is merged in #57723, so we should use new image in test.
Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #
Special notes for your reviewer:
Release note:
Automatic merge from submit-queue (batch tested with PRs 67323, 66717, 67038). 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 init kernel validator display message error
Signed-off-by: Yuanbin.Chen <cybing4@gmail.com>
**What this PR does / why we need it**:
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixeskubernetes/kubeadm#1051
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 67894, 64097). 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>.
HPA metrics specificity improvements
**What this PR does / why we need it**:
Improves available specificity for HPA metrics by adding metric selector fields for metrics of Pods and Objects.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Implements this KEP: https://github.com/kubernetes/community/pull/2055
**Special notes for your reviewer**:
Need to add/update tests?
**Release note**:
```release-note
Introduces autoscaling/v2beta2 and custom_metrics/v1beta2, which implement metric selectors for Object and Pods metrics, as well as allowing AverageValue targets on Objects, similar to External metrics.
```
/assign @DirectXMan12
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: chroot to new --rootfs arg
**What this PR does / why we need it**:
This change adds a new --rootfs=path option to kubeadm, and (if
provided) chroot()s to this path before performing file operations.
This makes it possible to run the kubeadm binary from a container, but
perform remaining file operations against the host filesystem using
something like:
```
docker run -v /:/rootfs --net=host --uts=host --pid=host \
kubeadm:latest init ...
```
(Assuming something like the included `examples/kubeadm/Dockerfile` which sets CMD to `kubeadm --rootfs=/rootfs` - Edit: Dockerfile has been removed from this PR, but you get the idea)
Fixeskubernetes/kubeadm#503
**Special notes for your reviewer**:
- I'm not sure where is best to put the Dockerfile, or hook it up to the build process. Advice sought.
- The kubeadm command line arg handling was less unified than I was expecting to find. I've implemented this arg for `init` and `join`. I can add it to all the others too, if we're happy with the approach. An alternative would be to add the arg in the parent `KubeadmCommand`, possibly with a `PersistantFlag` - then it would automatically exist for all kubeadm subcommands.
- It would be slightly preferable if we could order `--rootfs` _before_ the subcommand so we could apply the arg automatically with `ENTRYPOINT ["kubeadm", "--rootfs=/rootfs"]`. This would be the only such flag in `kubeadm` however, so I have not implemented it that way atm. (Another alternative would be an env var)
**Release note**:
```release-note
Adds a new EXPERIMENTAL `--rootfs` flag to kubeadm, which (if specified) causes kubeadm to chroot before performing any file operations. This is expected to be useful when setting up kubernetes on a different filesystem, such as invoking kubeadm from docker.
```
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 config add support for more than one APIEndpoint
**What this PR does / why we need it**:
This PR completes the changes in kubeadm for management of more than one control plane instances introducing the possibility to configure more than one APIEndpoints
**Which issue(s) this PR fixes** :
refs https://github.com/kubernetes/kubeadm/issues/911, refs https://github.com/kubernetes/kubeadm/issues/963
**Special notes for your reviewer**:
Depends on:
- [x] https://github.com/kubernetes/kubernetes/pull/67830
**Release note**:
```release-note
kubeadm: The kubeadm configuration now support definition of more than one control plane instances with their own APIEndpoint. The APIEndpoint for the "bootstrap" control plane instance should be defined using `InitConfiguration.APIEndpoint`, while the APIEndpoints for additional control plane instances should be added using `JoinConfiguration.APIEndpoint`.
```
/cc @kubernetes/sig-cluster-lifecycle-pr-reviews
/sig cluster-lifecycle
/area kubeadm
/kind api-change
/kind enhancement
/assign @luxas
/assign @timothysc
/cc @chuckha @rosti @neolit123 @liztio
