Reduce LOC in security context tests

Adding vSphere volume validation in api

Fix transient flannel etcd

Remove docker-multinode

do not return error if TearDownPod is called twice

GCI: Fix yaml search path

nodecontroller: Fix log message on successful update

Automatic merge from submit-queue

federation: replacing string credentials field by secretRef

Fixes https://github.com/kubernetes/kubernetes/issues/25761

Replaced the string Credentials field in ClusterSpec by secretRef as discussed in https://github.com/kubernetes/kubernetes/issues/25761.
Also updated the clusterController to use this new secretRef field while creating a client to talk to a k8s cluster.

cc @lavalamp @kubernetes/sig-cluster-federation 

Automatic merge from submit-queue

Fix DATA RACE in unit tests: reconciler_test.go

Fixes https://github.com/kubernetes/kubernetes/issues/26377

Automatic merge from submit-queue

Speed up test, by not running with custom etcd prefix

Ref #25940

Since we don't test upgrades or stuff like that in unit tests & integration tests, it doesn't make much sense to test different etcd prefixes.

@ixdy 

Automatic merge from submit-queue

Support for cluster autoscaler in GCE Trusty and GCI images

Fixes: #26346
Ref: #26197

cc: @fgrzadkowski  @vulpecula @piosz @jszczepkowski 

Automatic merge from submit-queue

Increase etcd test server up timeout and disallow returning nil server 

Fixes #25047

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Automatic merge from submit-queue

Retry concurrency exceptions in e2e/kubectl.go.  Fixes #26138





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Automatic merge from submit-queue

Prevent use of ":latest" or untagged gcr.io images 

Ref #20836
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update docs; fix build

federation: Adding a tool to generate docs for federation apiserver and controller manager

Automatic merge from submit-queue

federation: Adding deep copy funcs for v1 objects in federation apiserver

Trying to fix https://github.com/kubernetes/kubernetes/issues/26111

Automatic merge from submit-queue

Create pkg/storage/OWNERS

Fixes #26118

Automatic merge from submit-queue

remove deprecated generated typed clients

The typed clients had been moved to pkg/client/clientset_generated/xxx/typed. We kept these files for backward compatibility. But it seems release 1.3 is the appropriate time to get rid of them.

@kubernetes/sig-api-machinery @lavalamp 

Temporarily disable node-problem-detector to unblock #26351

Bump Node Image to  container-v1-3-v20160517

e2e: fix the expectation of always running kube-system pods

Kubenet host-port support through iptables

Add metrics support for a GCE PD, EC2 EBS & Azure File volumes

Bump cAdvisor (and dependencies) godeps version

volume controller: Speed up binding by not sorting volumes

Fix builds on selinux systems

make admission plugins configurable based on external criteria

Add orphaning finalizer logic to GC

Set Dashboard UI version to v1.1.0-beta1

Log output of lifecycle hooks on failure