Automatic merge from submit-queue (batch tested with PRs 49107, 47177, 49234, 49224, 49227)

Move util/exec to vendor

Move util/exec to vendor.
Update import paths.
Update godep

Part of #48209

Associate PR against `k8s.io/utils` repo: https://github.com/kubernetes/utils/pull/5

```release-note
NONE
```

/assign @apelisse

Automatic merge from submit-queue (batch tested with PRs 49107, 47177, 49234, 49224, 49227)

Added logging to AWS api calls. #46969

Additionally logging of when AWS API calls start and end to help diagnose problems with kubelet on cloud provider nodes not reporting node status periodically.  There's some inconsistency in logging around this PR we should discuss.

IMO, the API logging should be at a higher level than most other types of logging as you would probably only want it in limited instances.  For most cases that is easy enough to do, but there are some calls which have some logging around them already, namely in the instance groups.  My preference would be to keep the existing logging as it and just add the new API logs around the API call.

Automatic merge from submit-queue (batch tested with PRs 49107, 47177, 49234, 49224, 49227)

Make sure the previous symlink file is deleted before trying to create a new one

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

It deletes possibly existing symlinks to container log files.

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

fixes #49105

**Special notes for your reviewer**:

**Release note**:

```release-note
```

Automatic merge from submit-queue

Fix findmnt parsing in containerized kubelet

NsEnterMounter should not stop parsing findmnt output on the first space but on the last one, just in case the mount point name itself contains a space.

Fixes #49106

```release-note
Fixed unmounting of vSphere volumes when kubelet runs in a container.
```

@kubernetes/sig-storage-pr-reviews

Automatic merge from submit-queue

Remove old log-dump.sh script

Ref https://github.com/kubernetes/kubernetes/issues/48513

Since we moved to new kubetest image which no longer needs the old one - https://github.com/kubernetes/test-infra/pull/3585

/cc @wojtek-t @fejta

Automatic merge from submit-queue

Fix bug with sed in log-dump script

/cc @wojtek-t

Automatic merge from submit-queue

fix the typo of Kubernetes Worker

**What this PR does / why we need it**:
fix the typo of Kubernetes Worker that Kubernetes spell error
**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

update-codecgen.sh: support staging dirs in tsort logic

Fixes #48984.

Automatic merge from submit-queue (batch tested with PRs 49276, 49235)

Don't fail fast if LoadBalancer section is missing

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

We should allow scenarios where cinder can be used even if the
operator does not want to use the openstack load balancer. So
let's warn in the beginning if subnet-id is missing but fail only
if they try to use the load balancer

**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

[trival] fix typo

reopen https://github.com/kubernetes/kubernetes/pull/47300

**Release note**:

```
NONE
```

Automatic merge from submit-queue (batch tested with PRs 49114, 48810)

Unify fuzzers and roundtrip tests

- reorganize apimachinery/pkg/api/testing package to avoid circular imports
- make fuzzers modular per apigroup
- add roundtrip test for meta types
- add roundtrip test for a couple of staging apigroups

Follow-up:

- split `pkg/api` tests by apigroup

Automatic merge from submit-queue (batch tested with PRs 49114, 48810)

Move generators to staging/src/k8s.io/kube-gen

Reason number one for people trying the impossible of vendoring kube: reuse of the generators.

Automatic merge from submit-queue

Fix master disk size variable usage

Automatic merge from submit-queue

Fix too extensive logging in Stackdriver Logging e2e tests

Since logging pod now includes a cache, printing it out makes build-log unusable.

We should allow scenarios where cinder can be used even if the
operator does not want to use the openstack load balancer. So
let's warn in the beginning if subnet-id is missing but fail only
if they try to use the load balancer

Automatic merge from submit-queue (batch tested with PRs 49212, 49203, 49255)

Update wordpress to 4.8.0

**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 49212, 49203, 49255)

If the init fails for whatever reason, plugin is nil and cannot be used.

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

Addressing
```
=== RUN   TestCanSupport
E0719 13:48:19.829849    2289 driver-call.go:232] init command failed, status: Successx, reason:
--- FAIL: TestCanSupport (0.00s)
	flexvolume_test.go:180: Can't find the plugin by name
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x11fc5b5]
```

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

N/A

**Special notes for your reviewer**:

N/A

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

Bump rescheduler version to v0.3.1

**What this PR does / why we need it**:
Bump Rescheduler version to v0.3.1 to log to STDERR.

**Which issue this PR fixes**
Fixes https://github.com/kubernetes/contrib/issues/2518

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

Automatic merge from submit-queue

Tolerate Flavor information for computing instance type

**What this PR does / why we need it**:
Current devstack seems to return "id", and an upcoming change using
nova's microversion will be returning "original_name":
https://blueprints.launchpad.net/nova/+spec/instance-flavor-api

So let's just inspect what is present and use that to figure out
the instance type.

**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

Fix on-premises term in error string and comments for aws provider

**What this PR does / why we need it**: fix for correct terminology of "on-premises" over "on-premise"

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

**Special notes for your reviewer**: Updated error string while doing a scrub for the incorrect term in the docs (kubernetes/kubernetes.github.io#4413).

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

fix naming for testgrid to pick up cmd test junit

Fixes #47613

The file name for testgrid to pick up should match regex `'junit(_[^_]+)?(_\d+-\d+)?(_\d+)?.xml'`
Name before is `junit-test-cmd.xml`
Name after is `junit_test-cmd.xml`

```release-note
NONE
```

/assign @krzyzacy

Automatic merge from submit-queue (batch tested with PRs 49083, 45540, 46862)

Respect KUBE_BUILD_PLATFORMS set by user

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

Currently the only(?) toggle available for custom arch builds is
KUBE_FASTBUILD. We should allow the user to specify a list
of arch(es) in the environment variable KUBE_BUILD_PLATFORMS.

Example:
KUBE_BUILD_PLATFORMS="linux/amd64 linux/arm64" hack/build-cross.sh

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

Fixes #20365

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 49083, 45540, 46862)

Add extra logging to azure API get calls

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

This PR adds extra logging for external calls to the Azure API, specifically get calls.

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

This will help troubleshoot problems arising from the usage of this cloudprovider. For example, it looks like #43516 is caused by a call to the cloudprovider taking too much time.

Automatic merge from submit-queue (batch tested with PRs 49083, 45540, 46862)

update golang version to go1.8
Signed-off-by: sakeven <jc5930@sina.cn>



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

There are some code breaking the compatibility with golang 1.6. Now kubernetes only support golang 1.8.
We need to update golang version check script.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #49082

**Special notes for your reviewer**:

**Release note**:

```
NONE
```

Automatic merge from submit-queue (batch tested with PRs 49218, 48253, 48967, 48460, 49230)

use informers for quota evaluation of core resources where possible

Not all quota evaluators are using shared informers.  This updates them all to have the option of doing it.

Fixes https://github.com/kubernetes/kubernetes/issues/49233

```
resource quota uses shared informers for core types
```

Automatic merge from submit-queue (batch tested with PRs 49218, 48253, 48967, 48460, 49230)

Fix the Azure file to work within different cloud environments

**What this PR does / why we need it**:
Fix the Azure file plugin to work within different cloud environments.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #46081

cc @rootfs @brendandburns