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Fix package name bug

Fix https://github.com/kubernetes/client-go/issues/4#issuecomment-250061886

The copy.sh used to accidentally rewrite package name. This PR fixes that. It also picked up other changes in the code base to the staging area.

@mqliang

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docs/networking: update IPv6 support section

Update the state of IPv6 support.  Docker now supports IPv6, but network plugins and internal data structures are the main pain points now.

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CRI: Add more docs abount pod sandbox config in CreateContainerRequest.

Makes it clear that the config will not change during the pod lifecycle.
The field is only for convenience.

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Make the restart test restart the nodes without a mig rolling update.

This is one approach to fix #33113. I switched from using a mig rolling-update to just pushing the reset button on the nodes and then waiting for their boot IDs to change.

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Store RequestInfo in Context instead of RequestInfoResolver dependency injection

**Depends on https://github.com/kubernetes/kubernetes/pull/33478**

The `RequestInfoResolver` is used in the proxy handler and in the authorization code. It is passed through half of the apiserver code base to be available at those locations. This PR uses the context instead, which is our natural dependency injection mechanism in the handlers.

`RequestInfo` and all tooling around is moved to `pkg/apiserver/request` temporarily to avoid dependency cycles. This is necessary as long as `pkg/apiserver` implements the proxy and other handlers. Those might move to `pkg/apiserver/handlers` probably later.

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Annouce beta garbage collectionin CHANGELOG

announce beta garbage collection in 1.4.0 CHANGELOG;
copy behavior change of DELETE operation to 1.4.0 CHANGELOG.

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kubeadm: add OWNERS file

I'm picking @luxas @errordeveloper and me as the initial code reviewers. Happy to add others

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Use abstract cache.NewListWatchFromClient to make the code clean

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Proposal: Dramatically Simplify Kubernetes Cluster Creation

repost of #30360
closes #30360

copy behavior change of DELETE to 1.4.0 changelog

fixup godep

fix godeps

Initial commit for proposal from https://docs.google.com/document/d/1BO6JB16L27XFN-pmnFP_otvKW2cFxE-ysehI4ZJnYBo/edit

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Simplify genericapiserver tests

- create empty GenericApiServier object outside helper
- set default Config values everywhere because they are set anyway

... in order to replace the manual RequestInfoResolver dependency injection
through out the code.

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promote contrib/mesos to incubator

Fixes https://github.com/kubernetes/kubernetes/issues/33283

`contrib/mesos` has moved to https://github.com/kubernetes-incubator/kube-mesos-framework.  Docs are updated here https://github.com/kubernetes/kubernetes.github.io/pull/1339

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Move SELinux proposal to docs/design

Moves the proposal into the docs/design directory, as should have happened long ago.

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Use protobufs by default in e2e test clients

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Fix TestCreateWithNonExistentOwner

Fix #30228
As https://github.com/kubernetes/kubernetes/issues/30228#issuecomment-248779567 described, the GC did delete the garbage, it's the test logic failed. 
The test used to rely on `gc.QueuesDrained()`, which could return before the GC finished processing. It seems to be the only possible reason of the test failure. Hence, this PR changed the test to poll for the deletion of garbage.

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cache: remove obsolete internal package name

pkg/controller/framework is not a thing since https://github.com/kubernetes/kubernetes/pull/32718

@mikedanese @wojtek-t

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Move orphaned Pod deletion logic to PodGC

cc @mwielgus @mikedanese @davidopp

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MinReadySeconds / AvailableReplicas for ReplicaSets

This PR adds minReadySeconds and availableReplicas for replica sets / replication controllers

Partially addresses https://github.com/kubernetes/kubernetes/issues/28381

cc: @mfojtik 

@bgrant0607 for the api changes, @janetkuo for controller changes

Disabled HA master e2e test.

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Update golang.org/x/sys/unix package

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

Kubernetes build is failing on ppc64le platform with following error:

```
[root@rhel72 kubernetes]# make all KUBE_BUILD_PPC64LE=y
can't load package: package .: no buildable Go source files in /root/ks_ws/src/k8s.io/kubernetes
can't load package: package .: no buildable Go source files in /root/ks_ws/src/k8s.io/kubernetes
+++ [0926 09:39:53] Generating bindata:
    /root/ks_ws/src/k8s.io/kubernetes/test/e2e/framework/gobindata_util.go
+++ [0926 09:39:55] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
+++ [0926 09:39:55] Building go targets for linux/ppc64le:
    cmd/libs/go2idl/deepcopy-gen
+++ [0926 09:40:04] Generating bindata:
    /root/ks_ws/src/k8s.io/kubernetes/test/e2e/framework/gobindata_util.go
+++ [0926 09:40:05] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
+++ [0926 09:40:05] Building go targets for linux/ppc64le:
    cmd/libs/go2idl/conversion-gen
E0926 09:40:11.770782   19065 conversion.go:594] Warning: could not generate autoConvert functions for k8s.io/kubernetes/pkg/apis/apps/v1alpha1.PetSetSpec <-> k8s.io/kubernetes/pkg/apis/apps.PetSetSpec
E0926 09:40:11.888241   19065 conversion.go:594] Warning: could not generate autoConvert functions for k8s.io/kubernetes/pkg/apis/extensions/v1beta1.HorizontalPodAutoscalerSpec <-> k8s.io/kubernetes/pkg/apis/autoscaling.HorizontalPodAutoscalerSpec
E0926 09:40:11.905974   19065 conversion.go:594] Warning: could not generate autoConvert functions for k8s.io/kubernetes/pkg/apis/extensions/v1beta1.JobSpec <-> k8s.io/kubernetes/pkg/apis/batch.JobSpec
E0926 09:40:11.941445   19065 conversion.go:594] Warning: could not generate autoConvert functions for k8s.io/kubernetes/pkg/apis/extensions/v1beta1.RollingUpdateDeployment <-> k8s.io/kubernetes/pkg/apis/extensions.RollingUpdateDeployment
E0926 09:40:11.947455   19065 conversion.go:594] Warning: could not generate autoConvert functions for k8s.io/kubernetes/pkg/apis/extensions/v1beta1.ScaleStatus <-> k8s.io/kubernetes/pkg/apis/extensions.ScaleStatus
+++ [0926 09:40:13] Generating bindata:
    /root/ks_ws/src/k8s.io/kubernetes/test/e2e/framework/gobindata_util.go
+++ [0926 09:40:14] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
+++ [0926 09:40:14] Building go targets for linux/ppc64le:
    cmd/libs/go2idl/openapi-gen
+++ [0926 09:40:25] Generating bindata:
    /root/ks_ws/src/k8s.io/kubernetes/test/e2e/framework/gobindata_util.go
+++ [0926 09:40:26] Building the toolchain targets:
    k8s.io/kubernetes/hack/cmd/teststale
+++ [0926 09:40:26] Building go targets for linux/ppc64le:
    cmd/kube-dns
    cmd/kube-proxy
    cmd/kube-apiserver
    cmd/kube-controller-manager
    cmd/kubelet
    cmd/kubemark
    cmd/hyperkube
    plugin/cmd/kube-scheduler
    cmd/kubectl
    cmd/gendocs
    cmd/genkubedocs
    cmd/genman
    cmd/genyaml
    cmd/mungedocs
    cmd/genswaggertypedocs
    cmd/linkcheck
    examples/k8petstore/web-server/src
    federation/cmd/genfeddocs
    vendor/github.com/onsi/ginkgo/ginkgo
    test/e2e/e2e.test
    vendor/github.com/onsi/ginkgo/ginkgo
    test/e2e_node/e2e_node.test
# k8s.io/kubernetes/vendor/github.com/fsnotify/fsnotify
vendor/github.com/fsnotify/fsnotify/inotify.go:39: undefined: unix.InotifyInit
vendor/github.com/fsnotify/fsnotify/inotify_poller.go:48: undefined: unix.Pipe2
make: *** [all] Error 1
[root@rhel72 kubernetes]# 
```

Above error already addressed part of https://github.com/golang/go/issues/15393. Current `golang.org/x/sys/unix` is very old so updating the package to the latest version.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:
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```release-note
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fix kubectl drain help to be consistent with documentation

fix kubectl drain usage to be consistent with documentation at https://github.com/kubernetes/kubernetes.github.io/blob/master/docs/user-guide/kubectl/kubectl_drain.md

It would be ideal if both could be sourced from a single file though

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Update federation controllers to use release 1.5 clientset

This PR is based on #32243, we won't merge it until next week, to make cherry-picks easier.

Disabled HA master e2e test.

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Allow building experimenta etcd images

Ref #20504

Once this PR is in, I would like to build and push: "etcd:3.0.10-experimental" image to:
- start testing it
- to make it possible to build a different "3.0.10" image in the future (we will most probably built in some loging into it.

@lavalamp - FYI