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Replace package "golang.org/x/net/context" with "context"

**What this PR does / why we need it**:
Replace package "golang.org/x/net/context" with "context"

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #60560

**Special notes for your reviewer**:
As of Go 1.7 this package(golang.org/x/net/context) is available in the standard library under the name context. see (https://godoc.org/golang.org/x/net/context)

It is almost machinery replace. 

**Release note**:

```release-note
NONE
```

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Add @x13n to fluentd-gcp OWNERS

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

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
/assign @crassirostris 
/assign @piosz

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Update IPVS doc

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

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #59505

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Add jingax10 as both reviewer and approver in cluster/gce.

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

Want to become both reviewer and owner for cluster/gce.

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

N/A

**Special notes for your reviewer**:

**Release note**:

```release-note

"NONE"
```

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fix validation for dev gcloud

```release-note
NONE
```

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Make audit output version configurable.

This is a re-make of https://github.com/kubernetes/kubernetes/pull/51786, taken over form @soltysh 

Copying from the previous PR:

This is followup to https://github.com/kubernetes/kubernetes/pull/51719 to start the discussion how we want to solve the problem of users picking which version is being served them.

We need to have an option for log and webhook, separately. Probably, for webhook backend with multiple destinations we'd like to send different version to each.

This approach adds two flags (only the second commit matters), one for log and another for webhook (unfortunately global one). I've looked into kubeconfig types and although there are options to specify group and version they are meant for removal. @liggitt had some thoughts maybe he could share the ideas and we can pick it up here.

@ericchiang @CaoShuFeng @sttts opinions, thoughts are more than welcome

```release-note
Add apiserver configuration option to choose audit output version.
```

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Capture pod startup phases as metrics

Learning from https://github.com/kubernetes/kubernetes/issues/60589, we should also start collecting and graphing sub-parts of pod-startup latency.

/sig scalability
/kind feature
/priority important-soon
/cc @wojtek-t 

```release-note
NONE
```

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Bump image for ingress downgrade test

**What this PR does / why we need it**:
Bumps the image to the latest released version. This should also fix the failing test.

/assign @bowei 

**Release note**:

```release-note
None
```

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Fix "Garbage collector should support cascading deletion of custom resources" flake

**What this PR does / why we need it**:
These webhook configuration objects were intended to have no effect on admission requests, and are just used to ensure that webhook configuration objects can always be deleted.

However, I think they are causing an entirely separate test to flake (Garbage collector should support cascading deletion of custom resources) because of the interaction between these two webhooks, which are run on all admission requests, and #61355 (Unable to create/update CRD when mutating webhook configured) when the two tests are run at around the same time.

This PR will make the effects of the webhook e2e test on other tests easier to reason about.

The flakiness is being caused by a legitimate failure of the underlying code (That CRDs currently don't work with webhooks), but not a failure which either of "Garbage collector should support cascading deletion of custom resources" or "AdmissionWebhooks Should not be able to prevent deleting validating-webhook-configurations or mutating-webhook-configurations" is supposed to reliably catch.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #59997

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

/sig api-machinery
/kind flake

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remove unused htpasswd

This file is not used anywhere.
Further more, this is an error in this file:
```
$ flake8 third_party/htpasswd/htpasswd.py --select=F
third_party/htpasswd/htpasswd.py:46:13: F821 undefined name 'time'
```
**Release note**:
```release-note
NONE
```

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`--force` only takes effect when `--grace-period=0`

`kubectl delete` should warn when `force` is specified without `--grace-period=0`

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #61374 


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

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Increase API watch test timeout to avoid flakes.

**What this PR does / why we need it**:
This test has been [flaking repeatedly](https://storage.googleapis.com/k8s-gubernator/triage/index.html?pr=1#82a58388c2f346567b72), probably because 10 seconds it too short of a deadline. One minute should be more generous.

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

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Use inner volume name instead of outer volume name for subpath directory

**What this PR does / why we need it**:
Fixes volume reconstruction for PVCs with subpath

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #61372

**Special notes for your reviewer**:


**Release note**:

```release-note
ACTION REQUIRED: In-place node upgrades to this release from versions 1.7.14, 1.8.9, and 1.9.4 are not supported if using subpath volumes with PVCs.  Such pods should be drained from the node first.
```

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Fixing kubemci conformance tests

Ref https://github.com/GoogleCloudPlatform/k8s-multicluster-ingress/issues/131

Changes:
* Add a static ip annotation while running the tests for kubemci. kubemci requires the IP to be preallocated.
* Add a default backend service. I have added it in the spec directly, so the change will be for ingress controller as well which should be fine. kubemci requires users to specify a default backend service that they need to ensure exists in all clusters.
* Disabled update SSL cert test for kubemci since it does not support that.
* Minor logging fixes.


Verified by running the tests locally that they now pass.

```
$ KUBECONFIG=~/.kube/config KUBE_MASTER_IP="<IP>" go run hack/e2e.go -- --test --test_args="--ginkgo.focus=kubemci"

• [SLOW TEST:629.179 seconds]
Loadbalancing: L7
/usr/local/google/home/nikhiljindal/code/src/github.com/kubernetes/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/e2e/network/framework.go:22
  GCE [Slow] [Feature:kubemci]
  /usr/local/google/home/nikhiljindal/code/src/github.com/kubernetes/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/e2e/network/ingress.go:604
    should conform to Ingress spec
    /usr/local/google/home/nikhiljindal/code/src/github.com/kubernetes/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/e2e/network/ingress.go:637
------------------------------
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSMar 19 19:45:59.242: INFO: Running AfterSuite actions on all node
Mar 19 19:45:59.242: INFO: Running AfterSuite actions on node 1

Ran 1 of 820 Specs in 631.245 seconds
SUCCESS! -- 1 Passed | 0 Failed | 0 Pending | 819 Skipped PASS

Ginkgo ran 1 suite in 10m32.602848558s
Test Suite Passed
```

cc @G-Harmon @MrHohn 


```release-note
NONE
```

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Make `test-cmd` work with OS-X tooling

OS-X thips with the BSD versions of `date` and `grep`. Those don't have
certain features the script relies on:
- BSD date does not support nanoseconds (`%N`)
- BSD grep does not support perl RegEx (`-P`)

As we use `bash` specifically in the hashbang anyway it is probably fine
to rely on the `$RANDOM` bashism here.

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

Currently `make test-cmd` doesn't work on OSX. This PR makes `make test-cmd` work on OSX.

**Release note**:
```release-note
`make test-cmd` now works on OSX.
```

cc: @apelisse

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remove kube-apiserver `--storage-version` flag

#`--storage-version` has been deprecated more than a year ago, should remove it.

**Release note**:

```release-note
Remove kube-apiserver `--storage-version` flag, use `--storage-versions` instead.
```

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	fix a error in return value

**What this PR does / why we need it**:
This patch fix a small bug in function GetClusterRole() which returns with wrong error info.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Simplify authenticator configuration initialization

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

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Change pods memory boundary.

Node e2e tests are running in parallel. There might be many pods running during summary api test. `20mb` is a bit too low.

@dashpole 
/cc @kubernetes/sig-node-pr-reviews 
Signed-off-by: Lantao Liu <lantaol@google.com>



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

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

**Special notes for your reviewer**:

**Release note**:

```release-note
none
```

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Add COPYING file name as valid license file

**What this PR does / why we need it**:
Some valuable libraries such as https://github.com/google/shlex which could be integrated into Kubernetes use COPYING for their License file name. This would be helpful in getting pull requests such as https://github.com/kubernetes/kubernetes/pull/59700 merged.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Bump Heapster to v1.5.2

**What this PR does / why we need it**:
Bump Heapster to v1.5.2

**Release note**:
```release-note
Bump Heapster to v1.5.2
```

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Use apps/v1 ReplicaSet in controller and tests.

This updates the RS/RC controller and RS integration/e2e tests to use apps/v1 ReplicaSet, as part of #55714.

It does *not* update the Deployment controller, nor its integration/e2e tests, to use apps/v1 ReplicaSet. That will be done in a separate PR (#61419) because Deployment has many more tendrils embedded throughout the system.

```release-note
Conformance: ReplicaSet must be supported in the `apps/v1` version.
```

/assign @janetkuo

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Added e2e test for local volume provisioner discovery of new mountpoints while running.

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

This PR adds an e2e test for the local volume provisioner leveraging of the MountPropogation feature (https://github.com/kubernetes/kubernetes/pull/46444) to discover newly created mountpoints. The MountPropogation feature is now in beta (https://github.com/kubernetes/kubernetes/blob/master/pkg/features/kube_features.go#L146).

**Which issue(s) this PR fixes**:
Fixes https://github.com/kubernetes/kubernetes/issues/58416

**Special notes for your reviewer**:

```
KUBE_FEATURE_GATES="BlockVolume=true" NUM_NODES=1 go run hack/e2e.go -- --up

go run hack/e2e.go -- --test --test_args='--ginkgo.focus=PersistentVolumes-local.*Local.*volume.*provisioner'
```

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

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prevent conformance test failure in DIND scenario

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

in the "ci-kubernetes-local-e2e" job, we are running local-up-cluster.sh
using DIND. We see failure for "HostPath should give a volume the
correct mode [Conformance]" test. The failure looks as follows:

linux mounts: path /tmp is mounted on / but it is not a shared or slave
mount


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

**Special notes for your reviewer**:
https://github.com/kubernetes/kubernetes/issues/61058#issuecomment-372764783

**Release note**:

```release-note
NONE
```

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Use charm env in actions to get have charmhelpers available

**What this PR does / why we need it**: Due to changes in the base layer the actions in the Juju charms do not have access to charmhelpers in the default environment. This PR fixes this issue.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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fix for openstack member cleanup for multiple port cases

**What this PR does / why we need it**:
Fixing an openstack lb issue.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes: #60976

**Special notes for your reviewer**:
The problem with the code was that if multiple ports were exposed then that created multiple members for each listener, and the deletion process iterated over each listener with an array of every member resulting listener - member mismatch, which caused not found exception from lbaasv2.

**Release note**:

```release-note

```

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pkg/printers: Support base64 decode in kubectl get go-template

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

Adds a `base64decode` function to templates in `kubectl` so that it's possible to extract secret data in plaintext instead of base64 without requiring a separate executable to do the decode.

Sample usage:

```sh
kubectl get secret SECRET -o go-template='{{ .data.KEY | base64decode }}'
```

**Which issue(s) this PR fixes**:
Fixes kubernetes/kubernetes#45293.

**Special notes for your reviewer**:

**Release note**:
```release-note
You can now use the `base64decode` function in kubectl go templates to decode base64-encoded data, for example `kubectl get secret SECRET -o go-template='{{ .data.KEY | base64decode }}'`.
```

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Remove 'system' prefix from Metadata Agent rbac configuration

**What this PR does / why we need it**:
Remove 'system' prefix from Metadata Agent rbac configuration.

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

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remove unused tls-ca-file flag

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

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

**Special notes for your reviewer**:

**Release note**:

```release-note
Remove `--tls-ca-file` flag.
```

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fix waitLoadbalancerDeleted timeout always

**What this PR does / why we need it**: waitLoadbalancerDeleted function goes always to timeout because not working check

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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vendor: Update github.com/evanphx/json-patch

Updates github.com/evanphx/json-patch dependency
to fix handling tests against empty objects/arrays.

Includes fix from evanphx/json-patch#50

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Add HPA test for FailedGetExternalMetric

**What this PR does / why we need it**:
Add a HPA test for missing external metrics.

**Release note**:

```
NONE
```

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Update Cluster Autoscaler version to 1.2.0-beta1

Update Cluster Autoscaler version to 1.2.0-beta1

```release-note:
NONE
```

Merge pull request #61352 from dims/stabilize-openstack-test-when-running-against-real-openstack-cloud

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Stabilize openstack_test when running against real cloud

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

in TestReadConfig, we are setting some env vars for testing if
we read them back properly. However this interferes with running
the unit test harness against a real openstack cloud where we
source the OS_* environment variables. Adding code here to save
and reset variables.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 60373, 61098, 61352, 61359, 61362). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Use mktemp instead of static temporary file path in scripts.

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

Using static file names in `/tmp` is considered to be a security anti-pattern, even if the modern Linux distributions make it difficult for the attacker to use symbolic link attacks against the `/tmp` directory. We should consider changing to the pattern of safely creating a temporary directory which only the user can access and placing the temporary files there. This assumes that `mktemp` command is installed -- it should be a safe assumption since the command is already widely used in the kubernetes scripts.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 60373, 61098, 61352, 61359, 61362). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Bump cfssl to be compatible with Go 1.10

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

add unit test for function FeatureGateSetFromMap and FeatureGateString

**What this PR does / why we need it**:
add unit test for function FeatureGateSetFromMap and FeatureGateString
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```