Resource Metrics API proposal

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Update Dockerfile

## Pull Request Guidelines

1. Please read our [contributor guidelines](https://github.com/kubernetes/kubernetes/blob/master/CONTRIBUTING.md).
1. See our [developer guide](https://github.com/kubernetes/kubernetes/blob/master/docs/devel/development.md).
1. Follow the instructions for [labeling and writing a release note for this PR](https://github.com/kubernetes/kubernetes/blob/master/docs/devel/pull-requests.md#release-notes) in the block below.

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* Use the release-note-* labels to set the release note state 
* Clear this block to use the PR title as the release note 
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Exposing 24008 is not required as glusterd listens on 24007 port.

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Add docs for podautoscaler package

Add missing docs for podautoscaler package in controllers.

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bump cni version again

Need to bump again. I made a mistake on the last build.

Update godep for ginkgo and gomega to fix file based exclusion.

GCE: Prefer preconfigured node tags for firewalls, if available

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remove inappropriate time.Sleep

Fixes #24815

@liggitt since you added this in #8494 :)

add NetworkStatus in NetworkPlugin interface for kubelet to consume

Mark two kubectl tests flaky.

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Fix verify codecgen

Fixes #25103.

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update kubectl apply help info

Please refer #22342 for more detail. @bgrant0607 ptal. Also I have open a PR to update docs on `kuberntes.github.io`

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Adding a proposal for server-side cascading deletion

@lavalamp @bgrant0607 
cc @kubernetes/sig-api-machinery @derekwaynecarr 

ref https://github.com/kubernetes/kubernetes/issues/12143 https://github.com/kubernetes/kubernetes/issues/19054 https://github.com/kubernetes/kubernetes/pull/17305 (initializer proposal)

Use --format='value()' instead of --fields with gcloud compute instances describe

* Make verify call update
* Make update's topological sort not confused about the "io" package

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Use proper codec in client

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Default KUBEMARK_TEST_ARGS

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Corrected cassandra example's indent.

No logic changed; just correct java code's indent.

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kubectl rolling-update support for same image

Fixes #23497.

Enables `kubectl rolling-update --image` to the same image, adding a `--image-pull-policy` flag to remove ambiguity. This allows rolling-update to behave as an "update and/or restart" (https://github.com/kubernetes/kubernetes/issues/23497#issuecomment-212349730), or as a forced update when the same tag can mean multiple versions (e.g. `:latest`). cc @janetkuo @nikhiljindal 

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Use tagged redis image for kubectl test, move json test file out of deprecated examples

Closes #24642

Changes the redis image to use the :e2e tagged version on gcr.io.

Since the examples/ subdir is deprecated in favor of the new kubernetes/kubernetes.github.io I just copied this file to test-manifests/kubectl like some other files.

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Add an entry to the salt config to allow Debian jessie on GCE.

```release-note
Add an entry to the salt config to allow Debian jessie on GCE.

As with the existing Wheezy image on GCE, docker is expected
to already be installed in the image.
```


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Redo Unstructured to have accessor methods

Add accessor methods that implement pkg/api/unversioned.ObjectKind,
pkg/api/meta.Object, pkg/api/meta.Type and pkg/api/meta.List.

Removed the convenience fields since writing to them was not reflected
in serialized JSON.

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bump cni binary

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etcd3/store: userUpdate error should be returned

Minor fix.
The userUpdate error should be returned.

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Update docs to describe new PR release-note block parsing.

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Kubelet pod eviction proposal

The following is a proposal for how the `kubelet` may pro-actively fail a pod in response to local compute resources being starved.  The proposal focuses on memory as a first candidate, and defines a `greedy` strategy for reclaiming starved resources on the node since it seemed easiest to describe for operators versus other options and probably satisfies a broad set of use case environments.

Putting this out now for community feedback, but anticipate some more refinement around how we report eviction configuration back to users in the `Node API`.

/cc @bgrant0607 @smarterclayton @vishh @dchen1107 @kubernetes/rh-cluster-infra @kubernetes/goog-node 

Protobuf generation should strip side-effect imports

As with the existing Wheezy image on GCE, docker is expected
to already be installed in the image.

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Move test-history code into the test-infra repository.

~~Waiting on https://github.com/kubernetes/test-infra/pull/3~~ ready to go