Automatic merge from submit-queue (batch tested with PRs 37680, 39968)

Update Owners for Scheduler

Update Owners file for scheduler component to spread the reviews around. 

/cc @davidopp  per previous sig-mtg.

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Report the Pod name and namespace when kubelet fails to sync the container

This helps debugging problems with SELinux (and other problems related to the Docker failed to run the container) as currently only the UUID of the Pod is reported:

```
Error syncing pod 670f607d-b5a8-11a4-b673-005056b7468b, skipping: failed to "StartContainer" for "deployment" with RunContainerError: "runContainer: Error response from daemon: Relabeling content in /usr is not allowed."
```

Here it would be useful to know what pod in which namespace is trying to mount the "/usr".

Automatic merge from submit-queue

Fixed pod anti-affinity bugs.

Broken by https://github.com/kubernetes/kubernetes/pull/39478/files#diff-fa4312d87a8e13262ade8a784ada4693R1036

/cc @timothysc @rrati

Automatic merge from submit-queue

Fixed typo.

Automatic merge from submit-queue

Added validation for API server's 'apiserver-count' flag.

Added validation for API server's 'apiserver-count' flag. The value of this flag should be a positive number, otherwise, will cause error while reconciling endpoints in MasterCountEndpointsReconciler. 

Fixed #38143

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fix typos

fix typos.

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Generate changes for staged repos (apimachinery, apiserver)

Restores OpenAPI types, deepcopy, and bazel for meta/v1 types.

Fixes #39912

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move name generation to generic api server storage helpers

Move name generation to the genericapiserver since only the server needs to know about it.

@kubernetes/sig-api-machinery-misc @sttts

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kubeadm: must lower-case token portion used in DNS label.

**What this PR does / why we need it**: In Kubernetes, DNS labels must be lower-case. `kubeadm` doesn't care when creating certain objects through the API. This PR fixes that erroneous behavior.

**Which issue this PR fixes**: fixes https://github.com/kubernetes/kubeadm/issues/104

**Special notes for your reviewer**: /cc @luxas @mikedanese @dgoodwin

Automatic merge from submit-queue (batch tested with PRs 39806, 39887, 39401)

refactor delete to remove cobra dependency

FYI. As part of CLI Q1 roadmap, we would like to reduce the dependency of Cobra from actual commands implementations. In this PR, I tried to refactor delete command to achieve this. @kubernetes/sig-cli-misc a quick review is quite welcome, and I am just working on more PRs.

Automatic merge from submit-queue (batch tested with PRs 39806, 39887, 39401)

export list of user resources

This patch exports the list of "userResources" found in
`pkg/kubectl/cmd/util/shortcut_resmapper.go` to allow its use in
external packages and clients.

Related downstream PR: https://github.com/openshift/origin/pull/12147

**Release note**:
```release-note
release-note-none
```

cc @deads2k

Allow openapi-gen tag to be removed from the directory.

Prevents client-go from being part of generation now that vendored
dependencies are considered in the chain.

Automatic merge from submit-queue

fixup some apimachinery packages

Moves the meta/v1/validation to apimachinery (since its logically shared) and moves the funny `apimachinery/pkg/genericapiserver/openapi/common` to `apimachinery/pkg/openapi`.

@kubernetes/sig-api-machinery-misc

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add patch RS to deployment controller

Found in http://gcsweb.k8s.io/gcs/kubernetes-jenkins/logs/ci-kubernetes-e2e-gci-gce/2841/artifacts/bootstrap-e2e-master/, `RBAC DENY: user "system:serviceaccount:kube-system:deployment-controller" groups [system:serviceaccounts system:serviceaccounts:kube-system system:authenticated] cannot "patch" on "replicasets.extensions/" in namespace "e2e-tests-deployment-3rj5g"
`

@kubernetes/sig-auth-misc

Refs kubernetes/kubeadm#104

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Give replicaset controller patch permission on pods

Needed for AdoptPod/ReleasePod

Fixes denials seen in autoscaling test log:
`RBAC DENY: user "system:serviceaccount:kube-system:replicaset-controller" groups [system:serviceaccounts system:serviceaccounts:kube-system system:authenticated] cannot "patch" on "pods./"`

Refs kubernetes/kubeadm#104

Automatic merge from submit-queue (batch tested with PRs 38592, 39949, 39946, 39882)

move api/errors to apimachinery

`pkg/api/errors` is a set of helpers around `meta/v1.Status` that help to create and interpret various apiserver errors.  Things like `.NewNotFound` and `IsNotFound` pairings.  This pull moves it into apimachinery for use by the clients and servers.

@smarterclayton @lavalamp First commit is the move plus minor fitting.  Second commit is straight replace and generation.

Automatic merge from submit-queue (batch tested with PRs 38592, 39949, 39946, 39882)

genericapiserver: cut off pkg/apis/extensions and pkg/storage dependencies

Move BuildDefaultStorageFactory to kubeapiserver.

Automatic merge from submit-queue (batch tested with PRs 38592, 39949, 39946, 39882)

Remove fluentd buffers if fluentd is stuck

Fluentd now stores its buffers on disk for the resiliency. However, if buffer is corrupted, fluentd will be restarting forever.

Following change will make fluentd liveness probe delete buffers if fluentd is stuck for more than X minutes (15 by default).

Automatic merge from submit-queue (batch tested with PRs 38592, 39949, 39946, 39882)

Add optional per-request context to restclient

**What this PR does / why we need it**: It adds per-request contexts to restclient's API, and uses them to add timeouts to all proxy calls in the e2e tests. An entire e2e shouldn't hang for hours on a single API call.

**Which issue this PR fixes**: #38305

**Special notes for your reviewer**:

This adds a feature to the low-level rest client request feature that is entirely optional. It doesn't affect any requests that don't use it. The api of the generated clients does not change, and they currently don't take advantage of this.

I intend to patch this in to 1.5 as a mostly test only change since it's not going to affect any controller, generated client, or user of the generated client.


cc @kubernetes/sig-api-machinery 
cc @saad-ali

Needed for AdoptPod/ReleasePod

Automatic merge from submit-queue (batch tested with PRs 39947, 39936, 39902, 39859, 39915)

Make api serialization test easier to follow

**What this PR does / why we need it**:

This PR makes the serialization test easier to understand and is informed by the recent experience of writing a new serialization test in SIG service catalog.

**Release note**:

```release-note
NONE
```