- split out port forwarding into its own package

Allow multiple port forwarding ports
- Make it easy to determine which port is tied to which channel
- odd channels are for data
- even channels are for errors

- allow comma separated ports to specify multiple ports

Add  portfowardtester 1.2 to whitelist

Automatic merge from submit-queue

error strings should not end with punctuation

**What this PR does / why we need it**:
Delete the end punctuation of error strings
**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**:
https://github.com/golang/go/wiki/CodeReviewComments#error-strings
**Release note**:

```release-note
```
Signed-off-by: yupeng <yu.peng36@zte.com.cn>

Automatic merge from submit-queue

remove unneeded storage options

Cleanup of some storage serialization options that only kube and federation api server (and maybe not even that one) need.

You may have called it a snip, but this moves the options out of generic entirely.

Automatic merge from submit-queue (batch tested with PRs 40529, 40630)

propagate explicit nulls in apply

Rebase of https://github.com/kubernetes/kubernetes/pull/35496 on top of https://github.com/kubernetes/kubernetes/pull/40260

The client-side propagation of the raw value is no longer needed, since the client is preserving the original object in unstructured form (explicit nulls are preserved).

Kept tests and CreateThreeWayMergePatch changes from https://github.com/kubernetes/kubernetes/pull/35496

```release-note
kubectl apply now supports explicitly clearing values not present in the config by setting them to null
```

- [x] Clean up orphaned objects in test-cmd to preserve pre- and post- conditions
- [x] improve CreateThreeWayMergePatch test to not filter based on string comparison to test name

Automatic merge from submit-queue (batch tested with PRs 40529, 40630)

test/e2e_node: tie together expected string and exec

This commit ties together busybox-sh invocation and test expectation
to avoid subtle mismatches between exec command and output string.

Automatic merge from submit-queue (batch tested with PRs 40645, 40541, 40769)

[Federation] Marked the tests that don't need registered clusters so.

Somewhat related to issue #40766. 

cc @kubernetes/sig-federation-pr-reviews

Automatic merge from submit-queue (batch tested with PRs 40645, 40541, 40769)

Fix sorting printer when sorting by a missing field

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

When calling `kubectl get` with the `--sort-by` flag, the command will error out if the field used for sorting is not present in at least one of the objects returned in the list, *even if it is a field valid in the object's model*. 

For example, taking a list of `ReplicationController` where one of them has `status: { replicas: 0 }` (so nothing in `status.availableReplicas`, even that being a valid object in the model and present in every other object of the list) :

```
$ oc get rc --sort-by=status.availableReplicas
error: availableReplicas is not found
```

This PR now traverses the entire list of objects to be sorted and, if at least one has the field provided in `--sort-by`, we sort correctly and consider the field empty in every other object where the field is not present. If none of the objects has the field, we error out (that will catch really invalid fields, and valid ones but not present in any object in the list, which is acceptable). No swagger validation here.

**Release note**:
```release-note
Fixed an issue where 'kubectl get --sort-by=' would return an error when the specified field were not present in at least one of the returned objects, even that being a valid field in the object model.
```

Automatic merge from submit-queue

Add initial french translations for kubectl

Add initial French translations, mostly as an example of how to add a new language.

@fabianofranz @kubernetes/sig-cli-pr-reviews

Automatic merge from submit-queue (batch tested with PRs 40638, 40742, 40710, 40718, 40763)

Reduce log noise when aws cloud cannot find public-ip4 metadata

**What this PR does / why we need it**:
The PR removes excessive log spam produced by the aws cloud provider for normal operating conditions.

**Which issue this PR fixes** 
fixes https://github.com/kubernetes/kubernetes/issues/23155

**Special notes for your reviewer**:

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

Automatic merge from submit-queue (batch tested with PRs 40638, 40742, 40710, 40718, 40763)

Fix formatting issue of secret volume describer

Fixing a `kubectl describe` bug

**Before**:

```yaml
...
Volumes:
  default-token-z7g96:
    Type:       Secret (a volume populated by a Secret)
    SecretName:     Optional:   %v

%!(EXTRA string=default-token-z7g96, bool=false)QoS Class:      BestEffort
...
```

**After**:

```yaml
...
Volumes:
  default-token-z7g96:
    Type:       Secret (a volume populated by a Secret)
    SecretName: default-token-z7g96
    Optional:   false
QoS Class:      BestEffort
...
```

Automatic merge from submit-queue (batch tested with PRs 40638, 40742, 40710, 40718, 40763)

move client/record

An attempt at moving client/record to client-go.  It's proving very stubborn and needs a lot manual intervention and near as I can tell, no one actually gets any benefit from the sink and source complexity it adds.

@sttts @caesarchaoxu

Automatic merge from submit-queue (batch tested with PRs 40638, 40742, 40710, 40718, 40763)

move pkg/storage to apiserver

Mechanical move of `pkg/storage` (not sub packages) to `k8s.io/apiserver`.

@sttts

Automatic merge from submit-queue

kuberuntime: remove the kubernetesManagedLabel label

The CRI shim should be responsible for returning only those
containers/sandboxes created through CRI. Remove this label in kubelet.

Automatic merge from submit-queue (batch tested with PRs 40111, 40368, 40342, 40274, 39443)

refactor hostport logic

Refactor hostport logic to avoid using api.Pod object directly.

Automatic merge from submit-queue (batch tested with PRs 40111, 40368, 40342, 40274, 39443)

Libvirt-coreos - Add execute permissions to kubernetes/bin

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

The master node was failing to start for me due to the permission errors on the kubernetes server binaries.

**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
NONE
```

Automatic merge from submit-queue (batch tested with PRs 40111, 40368, 40342, 40274, 39443)

Eliminate "Unknown service type: ExternalName"

When creating an ExternalName service, rest.go still generate the warning message "Unknown service type: ExternalName". This should be eliminated as this type of service is supported now.

Automatic merge from submit-queue (batch tested with PRs 40111, 40368, 40342, 40274, 39443)

Change OPENSTACK_IMAGE_NAME to be more specific

There may already be other images in the cloud named CentOS7,
but since we are fetching a very specific version (1604) we should
go ahead and make the image name very specific as well.



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

Some clouds already have `Centos7` as an image that is available, however it may not be the *specific* version that openstack-heat looks for and downloads from CentOS.

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

**Special notes for your reviewer**:

**Release note**:

```release-note 
OpenStack-Heat will now look for an image named "CentOS-7-x86_64-GenericCloud-1604". To restore the previous behavior set OPENSTACK_IMAGE_NAME="CentOS7"
```

Automatic merge from submit-queue

Add printer#EnsurePrintHeaders method

This patch adds a new `EnsurePrintHeaders` method to the
HumanReadablePrinter `ResourcePrinter`, which allows headers to be
printed in cases where multiple lists of the same resource are printed
consecutively, but are separated by non-printer related information.

Related downstream PR: https://github.com/openshift/origin/pull/12528

**Release note**:
```release-note
release-note-none
```

cc @fabianofranz @AdoHe

Automatic merge from submit-queue

Fix issue template to read more clearly

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

This PR fixes the github issue template. Currently the wording is very awkward.

Automatic merge from submit-queue

Preventing nil pointer reference in client_config

When a user tries to set the `extensions` map in the kube config, loading of the client config causes nil pointer exception because the `Context`, `Cluster`, `AuthInfo` objects are created without initializing the extensions map. This PR attempts to fix that.

Automatic merge from submit-queue

Update 1.6.0-alpha.1 changelog

clean up some auth-related changelogs

Automatic merge from submit-queue

Fix kubectl->kubefed typo

**What this PR does / why we need it**: The kubefed CLI too had a typo in it's example text.

**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**:

Automatic merge from submit-queue (batch tested with PRs 40527, 40738, 39366, 40609, 40748)

Bump nginx ingress version to 0.9.0-beta.1

Automatic merge from submit-queue (batch tested with PRs 40527, 40738, 39366, 40609, 40748)

Removed Flaky tag from PV e2e, added [Volume] to disruptive PV e2e

**What this PR does / why we need it**:
Removes `[Flaky]` from PV e2e testing.  Flakes were due to interference from an external test disrupting a cluster node.  The test has been [removed](https://github.com/rmmh/kubernetes/commit/9f36c032de8c45beb02412d5abf870943023f6c4) and the flakes have [cleared](https://k8s-testgrid.appspot.com/google-gce#gce-flaky).

Secondly, added `[Volume]` tag to PV disruptive tests.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #39119

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

Automatic merge from submit-queue (batch tested with PRs 40527, 40738, 39366, 40609, 40748)

Log rectification

Log error, modify

Automatic merge from submit-queue (batch tested with PRs 40527, 40738, 39366, 40609, 40748)

move portforward to client-go

Second to last one.  I had to split some tests like we did for apimachinery, but they still run in kubernetes.

@sttts

Automatic merge from submit-queue (batch tested with PRs 40527, 40738, 39366, 40609, 40748)

pkg/kubelet/dockertools/docker_manager.go: removing unused stuff

This PR removes unused constants and variables. I checked that neither kubernetes nor openshift code aren't using them.

Automatic merge from submit-queue

add myself to build and test approvers

Automatic merge from submit-queue

Add flag to node e2e test specifying location of ssh privkey

**What this PR does / why we need it**: in CI, the ssh private key is not always located at `$HOME/.ssh`, so it's helpful to be able to override it.

@krzyzacy here's my resurrected change. I'm not sure why I neglected to follow-through on it originally.

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

add deads2k to some cmd packages

Selectively adding myself to cmd packages for commands that I've authored or significantly touched.

Automatic merge from submit-queue

test/images/mount-tester: ensure exec binary is o+rx

The `mount-tester` image is currently used as a base layer for other
test images (like `mounttest-user`) which perform uid/gid changes.
However, the binary built in here just follows local umask, and currently is
```
-rwxr-x--- 1 root root 2052704 May 19  2016 mt
```

This commit adds an explicit chmod on the binary to make sure uid/gid
tests can still run it as "others".