Slow down redis polling to ensure no flakiness in kubectl

Unify Streaming and normal Serializers

Automatic merge from submit-queue

Add Subresource & Name to webhook authorizer.

Pass through the Subresource and Name fields from the `authorization.Attributes` to the `SubjectAccessReviewSpec.ResourceAttributes`.

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Add Services to Load test

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Refactor image related functions to use docker engine-api

ref #23563 

Hopes can do some help, cc @Random-Liu 

If it's ok, will add more work here.

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rkt: Return `FinishedAt` for pod

This is implemented via touching a file on stop as a hook in the systemd
unit. The ctime of this file is then used to get the `finishedAt` time
in the future.
In addition, this changes the `startedAt` and `createdAt` to use the api
server's results rather than the annotations it previously used.

It's possible we might want to move this into the api in the future.

Fixes #23887


I did the following manual testing:
```
$ cat ./examples/output/exit-output.yml 
apiVersion: v1
kind: Pod
metadata:
  labels:
    name: exit
  name: exit-output
spec:
  restartPolicy: Never
  containers:
    - name: exit
      image: busybox
      command: ["sh", "-c", "echo Exiting in 60; sleep 60; echo goodbye"]
$ kubectl create -f ./examples/exit/exit-output.yaml
$ # wait
$ kubectl describe pod exit-output | grep State -A 4
    State:		Terminated
      Reason:		Completed
      Exit Code:	0
      Started:		Tue, 19 Apr 2016 13:23:13 -0700
      Finished:		Tue, 19 Apr 2016 13:24:13 -0700
$ kubectl logs exit-output
Exiting in 60
goodbye
```

I double checked as well that the file at `/var/lib/kubelet/pods/$id/finished-$id` existed and looked as expected.

This is related to https://github.com/coreos/rkt/issues/1789#issuecomment-207111814 and follows https://github.com/kubernetes/kubernetes/pull/24367 + https://github.com/coreos/rkt/issues/2445

cc @jonboulle @iaguis @yifan-gu @kubernetes/sig-node

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stop changing the root path of the root webservice

We shouldn't mutate the root path of the root webservice (see usage).  Just write the path we want.

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update controllers watching all pods to share an informer

This plumbs the shared pod informer through the various controllers to avoid duplicated watches.

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Add node e2e test for mirror pod.

This is a node e2e test for mirror pod.

After this get merged, I'll revisit the mirror pod manager PR. #18638

/cc @yujuhong 

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Create multiple RCs in NC - prerequisite for adding services

WIP because I need to make the logs readable again.

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let admission plugins indicate they want nothing

An admission plugin can return `nil, nil` for construction.  This is useful for dealing with cases where the `config` passed to you effectively means, "no work".  The calling code already handles this.

@derekwaynecarr 

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Add word boundary support for GNU sed in zsh completion

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Adding loadBalancer services to quota system

@derekwaynecarr follow up to #22154.

Refactor image remove

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Make resource gatherer work for Kubemark

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schedulercache: remove bind() from AssumePod

Due to #24197, we make bind() asynchronous and don't need it anymore.
Submit this PR to clean it up.

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Use mCPU as CPU usage unit, add version in PerfData, and fix memory usage bug.

Partially addressed #24436.

This PR:
1) Change the CPU usage unit to "mCPU"
2) Add version in PerfData, and perfdash will only support the newest version now.
3) Fix stupid mistake when calculating the memory usage average.

/cc @vishh 

Automatic merge from submit-queue

Enforce --max-pods in kubelet admission; previously was only enforced in scheduler

This is an ugly hack - I spent some time trying to understand what one NodeInfo has in common with the other one, but at some point decided that I just don't have time to do that.

Fixes #24262
Fixes #20263

cc @HaiyangDING @lavalamp

Automatic merge from submit-queue

Intial draft on SeedProvider docs

Alsa more documentation.  We need to reference the config section in the example docs.  There are multiple PRs open in those docs, so at this point I do not want to make a mess.

Let me know if there are docs standard template that will make this more pretty.

test.

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Removing KUBE_API_VERSIONS from our test scripts

We dont need to specify them.
Its an unnecessary extra change that people have to make while adding a group.

We also need this change for ubernetes.

cc @caesarxuchao @jianhuiz 

This is implemented via touching a file on stop as a hook in the systemd
unit. The ctime of this file is then used to get the `finishedAt` time
in the future.
In addition, this changes the `startedAt` and `createdAt` to use the api
server's results rather than the annotations it previously used.

It's possible we might want to move this into the api in the future.

Fixes #23887

Automatic merge from submit-queue

fix relative working dirctory of KUBE_ROOT

fix relative working dirctory of `KUBE_ROOT`, do not need to change to `KUBE_ROOT` in the first place
Signed-off-by: Crazykev <zcq8989@gmail.com>

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update gb-frontend image. New image includes the change in PR # 23381.

Update to use the gcr.io/google-samples/gb-frontend:v4 image. New image includes the change in https://github.com/kubernetes/kubernetes/pull/23381.

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Disable travis on master.

There's no need for it, and it's blocking merges. Until we've got the munger ignoring travis, this should patch the problem.

ref #24628

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WIP: Proposed new PR release note template.

Initial template proposal - needs work to coexist with labels:

## ATTENTION - Release Note ack required!

Use the below `release-note` block to explain your change.  Valid inputs include:

**"title"** - the release note is the title of the PR
**"none"** - No release note needed for this PR
_freeform text_ - Describe your change as a summarized release note

```release-note
...release-note block...
```

Second template proposal - replaces labels:

## ATTENTION - Release Note ack required!

Update the below named `release-note-needed` block to one of:

**\`\`\`release-note**
**\`\`\`release-note-action-required**
**\`\`\`release-note-none**

Then describe your change as a summarized release note within the block.

```release-note-needed
...release-note block...
`line` 2
```

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Fix a few typos in comments

Add tests to watch behavior in both protocols (http and websocket)
against all 3 media types. Adopt the
`application/vnd.kubernetes.protobuf;stream=watch` media type for the
content that comes back from a watch call so that it can be
distinguished from a Status result.

Automatic merge from submit-queue

Default conversion for byte slices is incorrect

Nil slices are getting allocated, which is incorrect and changes
behavior in some cases.

   []byte(nil) -> []byte(nil)

@wojtek-t

Automatic merge from submit-queue

Fix ConfigMapList.Items to not use omitempty

Fixes https://github.com/kubernetes/kubernetes/issues/24335