Moving the cloudprovider interface to staging.

kubeadm: do not panic if etcd local alpha phase is called when an external etcd config is used

kubeadm: Allow mixing Init and Join Configurations

fix  golint in staging/src/k8s.io/apiserver/pkg/admission/plugin/ include namespace/lifecycle,webhook/mutating,webhook/validating

Code-gen: Remove lowercasing for project imports

Remove unnecessary concatenation of strings

Populate ClientCA in delegating auth setup

[aws] allow true/false in lb annotations

This change allows mixing InitConfiguration/ClusterConfiguration with
JoinConfiguration in a single YAML file, by performing the following changes:

- Replace the explicit error in `DetectUnsupportedVersion` with a warning.
- Modify `NodeConfigFileAndDefaultsToInternalConfig` to use only
  `JoinConfiguration`.
Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>

Enable configure-helper.sh to support two scenarios for etcd level encryption: decryption and adding encryption to existing clusters.

If etcd local alpha phase is called manually while the kubeadm configuration
points to an external etcd cluster kubeadm panics.

Load Balancing is not distributing connections to different endpoints

kubectl: Drop backOff from DrainOptions

Add CreateOptions and UpdateOptions to apiserver rest parameter installation

Add validation for percentage-of-nodes-to-score of the scheduler config

Fix descriptor lock release logic for block volume unmapDevice

Promote kubelet NodeConformance tests to Conformance

Updated approvers for winkernel proxy

kubectl run test: remove legacyscheme dependency and cleanups

Kubeadm add v1beta1 config

Individual implementations are not yet being moved.
Fixed all dependencies which call the interface.
Fixed golint exceptions to reflect the move.
Added project info as per @dims and
https://github.com/kubernetes/kubernetes-template-project.
Added dims to the security contacts.
Fixed minor issues.
Added missing template files.
Copied ControllerClientBuilder interface to cp.
This allows us to break the only dependency on K8s/K8s.
Added TODO to ControllerClientBuilder.
Fixed GoDeps.
Factored in feedback from JustinSB.

Make staging repo creation instructions clearer

kubectl fake test factory: replace legacyscheme with kubectl scheme

kubectl set tests: remove testapi core dependency

Remove etcd2 storage backend

E2E: handling extra files

kubectl: Drop typer from DrainOptions

 kubectl helpers test: remove core dependencies

Update options of master/node-os-distro

kubernetes/kubernetes#67768 accidentally removed population of the the ClientCA
in the delegating auth setup code.  This restores it.

Storage: printf cleanups

Update OWNERS files for GCE-related components

Add `log-level` mount option support for glusterfs plugin