Automatic merge from submit-queue (batch tested with PRs 43000, 44500, 44457, 44553, 44267)

add kubectl config view test code

**What this PR does / why we need it**:
kubectl config view test code

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

**Special notes for your reviewer**:
think you very much :)

**Release note**:

```release-note
```

Automatic merge from submit-queue (batch tested with PRs 43000, 44500, 44457, 44553, 44267)

EventTypeWarning replaces EventTypeNormal when failed

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


it is similar to #44083 and #44378
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
```

Automatic merge from submit-queue (batch tested with PRs 43000, 44500, 44457, 44553, 44267)

Updates e2e_node test to allow both kubenet and cni to be specified f…

…or the network plugin.

This adds a simple CNI configuration which is added to the node during test setup.
This also modifies the default flags in services/kubelet.go to specify the "cni-bin-dir"
and the "cni-conf-dir" and removes the "network-plugin-dir" flag.  This leaves the default
network plugin to kubenet.



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

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

**Special notes for your reviewer**:

**Release note**:

```release-note
```

Automatic merge from submit-queue (batch tested with PRs 43000, 44500, 44457, 44553, 44267)

Add Kubernetes 1.6 support to Juju charms

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

This adds Kubernetes 1.6 support to Juju charms.

This includes some large architectural changes in order to support multiple versions of Kubernetes with a single release of the charms. There are a few bug fixes in here as well, for issues that we discovered during testing.

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

**Special notes for your reviewer**:

Thanks to @marcoceppi, @ktsakalozos, @jacekn, @mbruzek, @tvansteenburgh for their work in this feature branch as well!

**Release note**:

```release-note
Add Kubernetes 1.6 support to Juju charms
Add metric collection to charms for autoscaling
Update kubernetes-e2e charm to fail when test suite fails
Update Juju charms to use snaps
Add registry action to the kubernetes-worker charm
Add support for kube-proxy cluster-cidr option to kubernetes-worker charm
Fix kubernetes-master charm starting services before TLS certs are saved
Fix kubernetes-worker charm failures in LXD
Fix stop hook failure on kubernetes-worker charm
Fix handling of juju kubernetes-worker.restart-needed state
Fix nagios checks in charms
```

Automatic merge from submit-queue

go-to-protobuf: actually skip - packages

If a package is prefixed with -, we are not supposed to be generating
protobuf for it. Make that actually happen :-)

cc @smarterclayton @sttts @deads2k @liggitt @kubernetes/sig-api-machinery-pr-reviews

If a package is prefixed with -, we are not supposed to be generating
protobuf for it. Make that actually happen :-)

Automatic merge from submit-queue

Allow configurable etcd options

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

Allows users to set the `--listen-client-urls` and `--advertise-client-urls` flags on etcd binaries for clusters set up with kubeadm.

**Which issue this PR fixes**:

As far as I can tell right now, other nodes in a cluster set up with kubeadm cannot communicate with the etcd static pod running on the master. This is needed in order to set up calico/canal SDN which needs access to a publicly addressable IPv4 _before_ the overlay network and inter-cluster subnet is created.

Addresses https://github.com/kubernetes/features/issues/138 and https://github.com/kubernetes/features/issues/11.

**Release note**:
```release-note
Users can now specify listen and advertise URLs for etcd in a kubeadm cluster 
```

Automatic merge from submit-queue

Fixed `kubectl cluster-info dump` to support multi-container pod.

Fixed `kubectl cluster-info dump` to support multi-container pod.

**Release note**:
```
Improve `kubectl cluster-info dump` to support multi-container pod information dump.
```

Fixed #44069

Automatic merge from submit-queue

clean auditStringSlice in audit

Automatic merge from submit-queue (batch tested with PRs 41849, 42033)

fix TODO: find and add active pods for dswp

loops through the list of active pods and ensures that each one exists in the desired state of the world cache

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

[Federation] Print out status updates while `kubefed init` is running

This is not an ideal final state–it does not address the appearance of hanging during long-running commands, for example–but it provides some level of information when the operations are successful.

See #41725.

**Release note**:

```release-note
Prints out status updates when running `kubefed init`
```

Automatic merge from submit-queue

use healthz api in WaitForAPI

finish TODO

Automatic merge from submit-queue

Used ObjectReference for events.

fixes #42701 

```release-note
None
```

Automatic merge from submit-queue

Refine NeedsHealthCheck logic for ESIPP

This PR is separated from #41162 (will continue breaking it into small PRs). Fixes #42888.

It moves healthcheck util functions to the right place and refines NeedsHealthCheck logic.

/assign @thockin @freehan 

**Release note**:

```release-note
NONE
```

loops through the list of active pods and ensures that each one exists in the desired state of the world cache

Automatic merge from submit-queue (batch tested with PRs 44469, 44566, 44467, 44526)

[Federation]Fix panic: index out of range

When the number of clusterStatusNew's Conditions is different from
the number of clusterStatusOld's Conditions, clustercontroller
will panic. We should check it before comparing.

Automatic merge from submit-queue (batch tested with PRs 44469, 44566, 44467, 44526)

Kubelet:rkt Fix the hostPath Volume creation

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

This PR fix the `hostPath` volume when the path exist and it's not a directory.
At the moment, the creation of a `hostPath` volume for an existing file leads to this error:

> kubelet[1984]: E0413 07:53:16.480922    1984 pod_workers.go:184] Error syncing pod 38359a57-1fb1-11e7-a484-76870fe7db83, skipping: failed to SyncPod: mkdir /usr/share/coreos/lsb-release: not a directory

**Special notes for your reviewer**:

You can have a look to the difference with this [gist](https://gist.github.com/JulienBalestra/28ae15efc8a1393d350300880c07ff4f)

Automatic merge from submit-queue (batch tested with PRs 44469, 44566, 44467, 44526)

WaitForCacheSync before running attachdetach controller

@gnufied you wrote the test and @ncdc the TODO comment. Let's just run the pv and pvc informers, we do not care about them in this test. But we want to be able to stop the pod Informer at will, hence not just using informers.Start, is my understanding.
```release-note
NONE
```

Automatic merge from submit-queue

comment spelling correction in custommetrics

**What this PR does / why we need it**: fix spelling in a comment

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

**Special notes for your reviewer**:

**Release note**:

```release-note
```

Automatic merge from submit-queue

noticed typo in known-flags.txt

**What this PR does / why we need it**: looks like this was a typo that wasn't cleaned up

**Release note**:
```release-note
NONE
```

Automatic merge from submit-queue

'synchoronizing' word error

Automatic merge from submit-queue

add test for service controller sync and remove unused function

Automatic merge from submit-queue (batch tested with PRs 40055, 42085, 44509, 44568, 43956)

improve error handling in e2e helpers

**What this PR does / why we need it**:
Changes most of the volume related helper funcs to return error rather than calling `Expect`. This is a better programming practice, is consistent with Go and Kubernetes, and allows helper funcs that create multiple resources to perform cleanup.

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 40055, 42085, 44509, 44568, 43956)

revert BUILD changes at the end of DRY_RUN=n copy.sh

Fixes https://github.com/kubernetes/kubernetes/issues/44567

cc @caesarxuchao @ixdy @spxtr

Automatic merge from submit-queue (batch tested with PRs 40055, 42085, 44509, 44568, 43956)

Change the default CLUSTER_IP_RANGE used by e2e

The existing choice intersects with the range reserved for auto
subnets and cannot be used with some GCP features.

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 40055, 42085, 44509, 44568, 43956)

Fix gofmt errors

**What this PR does / why we need it**:
There were some gofmt errors on master. Ran the following to fix:
```
hack/verify-gofmt.sh | grep ^diff | awk '{ print $2 }' | xargs gofmt -w -s
```

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: none

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

error word

dummyController Struct comment "disonnected " is error word
WaitForCacheSync method comment "contoller" is error word

Automatic merge from submit-queue (batch tested with PRs 44569, 44398)

Move v1/refs and v1/resource

This PR moves pkg/api/v1/ref.go and pkg/api/v1/resource_helper.go to their own sub packages, it's very similar to 44299 and 44302.

The PR is mostly mechanical, except that 
* i moved some utility function from resource.go to pkg/api/v1/pod and pkg/api/v1/node, as they are more appropriate
* i updated the staging/copy.sh to copy the new subpackages, so that helper functions are copied. We can get rid of this copy after client-go stops copying API types.

Automatic merge from submit-queue

Don't check runtime condition for rktnetes

rktnetes is not a CRI implementation, and does not provide runtime
conditions. This change fixes the issue where rkt will never be
considered running from kubelet's point of view.

Automatic merge from submit-queue (batch tested with PRs 44519, 43194, 44513)

Use regexp instead of substring to do search and replace.

enisoc pointed out how ToLower can change (lengthen even!) the length of
a string given arbitrary input.

Follow-up to #44421 for #44419

Automatic merge from submit-queue (batch tested with PRs 44519, 43194, 44513)

[Federation] Add type-agnostic e2e crud test

This PR proposes an e2e test that reuses the type-agnostic crudtester already used for integration testing to validate crud against a deployed cluster. It is intended to to eventually replace the existing e2e tests for simple types like secrets, but for now will run in addition to the existing testing to gain confidence in the coverage it provides.

The deletion corner cases - when orphanDependents is nil or true - do not involve operations in the member clusters and are already well-tested in integration testing and so are not reimplemented here.

Where it can be applied, this approach of abstracting a test from its execution environment - making the test 'retargetable' - can reduce the cost of test development since the bulk of the work can be iterated on as an integration test.  It can also serve as a check on assumptions made in the integration test about how a deployed environment will behave.

cc: @kubernetes/sig-federation-pr-reviews @kubernetes/sig-testing-misc @smarterclayton @derekwaynecarr

Automatic merge from submit-queue

Remove deprecatedPublicIPs field

move pkg/api/v1/ref.go and pkg/api/v1/resource.go to subpackages. move some functions in resource.go to pkg/api/v1/node and pkg/api/v1/pod

rktnetes is not a CRI implementation, and does not provide runtime
conditions. This change fixes the issue where rkt will never be
considered running from kubelet's point of view.