Commit Graph

66211 Commits

Author SHA1 Message Date
Kubernetes Submit Queue
15c22b580a
Merge pull request #64340 from jiayingz/ds_decode_fix
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>.

Fix DsFromManifest() after we switch from extensions/v1beta1 to apps/v1

in cluster/addons/device-plugins/nvidia-gpu/daemonset.yaml.



**What this PR does / why we need it**:
Fixes broken node e2e jobs caused by https://github.com/kubernetes/kubernetes/pull/64296.

**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

```
2018-05-25 21:00:08 -07:00
Jordan Liggitt
2d28e0d6a3
bump(github.com/evanphx/json-patch): 94e38aa1586e8a6c8a75770bddf5ff84c48a106b 2018-05-25 22:29:07 -04:00
Lantao Liu
7c17ee25ec Remove unused limit writer.
Signed-off-by: Lantao Liu <lantaol@google.com>
2018-05-25 16:55:08 -07:00
Zihong Zheng
19d7006d6b [gce provider] Update auto-generated codes 2018-05-25 16:43:28 -07:00
Zihong Zheng
332a3e8467 [gce provider] Add more wrapper for securiti policy 2018-05-25 16:43:28 -07:00
Vishnu kannan
9475292cd8 Adding a shutdown script that would enable handling preemptible VM terminations gracefully in GCP environment
Signed-off-by: Vishnu kannan <vishnuk@google.com>
2018-05-25 16:20:24 -07:00
Nick Sardo
c05e89d0e5 Fix nodeport repair for ESIPP services 2018-05-25 16:09:16 -07:00
Jiaying Zhang
6e0badc0d1 Fix DsFromManifest() after we switch from extensions/v1beta1 to apps/v1
in cluster/addons/device-plugins/nvidia-gpu/daemonset.yaml.
2018-05-25 16:05:35 -07:00
Ashley Gau
cf393d7a7b remove gce_address_fakes.go from BUILD file 2018-05-25 15:24:17 -07:00
liz
ffeca16101
Remove some unnecessarily gendered pronouns in comments 2018-05-25 17:48:17 -04:00
Ashley Gau
a96c5f2884 mocks must return true in order to trigger err 2018-05-25 14:33:33 -07:00
Ashley Gau
069062365a use fakeGCECloud instead of gce address fakes 2018-05-25 14:19:00 -07:00
Maciej Szulik
2a76535018
Remove initializer test
Initializers are alpha, broken and a subject for removal. They don't
work well with finalizers and the previous hack present in deployment
and replicaset reapers was just hiding this problem.
2018-05-25 22:18:10 +02:00
Maciej Szulik
b8b4c7c81b
Handle DaemonSet removal the old way 2018-05-25 22:18:10 +02:00
Maciej Szulik
383872615d
Remove kubectl reapers 2018-05-25 22:18:05 +02:00
Hemant Kumar
354cfcf618 Remove feature tags from e2e test for resize 2018-05-25 15:32:44 -04:00
Hemant Kumar
23a73283b3 Fix breaking volume resize e2e tests 2018-05-25 15:32:44 -04:00
Hemant Kumar
0dd6e75567 Move volume resizing to beta
Update bootstrap policies
2018-05-25 15:32:38 -04:00
Kubernetes Submit Queue
8306b0b1a4
Merge pull request #64296 from mindprince/nvidia-gpu-device-plugin-update-strategy
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>.

Update nvidia-gpu-device-plugin to apps/v1 and use RollingUpdate updateStrategy.

Even though RollingUpdate is the default updateStrategy, we need to
specify it explicitly here because otherwise updating from
extensions/v1beta1 to apps/v1 doesn't change the updateStrategy.

Related to #57125 and #63634

```release-note
NONE
```

/assign @vishh @jiayingz 
/cc @janetkuo
2018-05-25 11:33:15 -07:00
Chuck Ha
2f2de31d3d
Prepulls images by default
kubeadm now pulls container images before the init step if it cannot find them on the system

* This commit also cleans up a dependency cycle

Closes #825
2018-05-25 14:26:29 -04:00
Ed Bartosh
25436cdc6a fix parsing 'crictl pods -q' output
Output of crictl pods -q is a list of running pod ids, one id per line.
Current code splits this output incorrectly which makes next command
'crictl stopp' fail if there is more than one pod running.

Should be fixed by using strings.Fields instead of strings.Split.
2018-05-25 21:00:24 +03:00
andrewsykim
4c3fa4f9ba disable PersistentVolumeLabel admission controller by default 2018-05-25 12:37:56 -04:00
Ed Bartosh
d38afb1367 remove CrictlChecker from preflight checks
CrictlChecker uses InPathCheck to check if crictl presents
in the PATH. The same check is done in CRICheck function.

CrictlChecker is also called unconditionally, producing messages
that can confuse users. CRICheck is called only when needed, i.e.
when user specifies CRI socket.
2018-05-25 19:25:29 +03:00
Yecheng Fu
28b6f34107 Should use hostProcMountinfoPath constant in nsenter_mount.go. 2018-05-26 00:09:25 +08:00
Kubernetes Submit Queue
880dbd339b
Merge pull request #64231 from twilfong/patch-1
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>.

Update function hasClusterTag to fix issue #64230

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

Fixes issue #64230, by changing function hasClusterTag, in aws/tags.go, to ensure that, when called with a list of tags containing a tag with a key which matches clusterTagKey, function will return true even if a tag with key TagNameKubernetesClusterLegacy also exists in the list with a value other than the ClusterID.

**Which issue(s) this PR fixes**:
Fixes #64230

**Special notes for your reviewer**:
Notes are in issue

**Release note**:
```release-note
NONE
```
2018-05-25 09:01:00 -07:00
Kubernetes Submit Queue
a176a8b1b7
Merge pull request #64134 from wgliang/master.remove-from-factory2
Automatic merge from submit-queue (batch tested with PRs 63232, 64257, 64183, 64266, 64134). 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>.

Move SuggestedPodTemplateResources from factory to set_resources

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

Move SuggestedPodTemplateResources from factory to set_resources

**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 #64106

**Special notes for your reviewer**:

/cc @juanvallejo
**Release note**:

```release-note
NONE
```
2018-05-25 08:24:25 -07:00
Kubernetes Submit Queue
b8db949560
Merge pull request #64266 from shyamjvs/measure-max-scheduler-throughput-metric
Automatic merge from submit-queue (batch tested with PRs 63232, 64257, 64183, 64266, 64134). 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>.

Measure scheduler throughput in density test

This is a step towards exposing scheduler-related metrics on [perf-dash](http://perf-dash.k8s.io/).
This particular PR adds scheduler throughput computation and makes the results available in our test artifacts.
So if you do some experiments, you'll have some historical baseline data to compare against.

xref https://github.com/kubernetes/kubernetes/issues/63493

fyi - @wojtek-t @davidopp @bsalamat @misterikkit 
cc @kubernetes/sig-scheduling-misc @kubernetes/sig-scalability-misc 

```release-note
NONE
```
2018-05-25 08:24:22 -07:00
Kubernetes Submit Queue
f33aed89d1
Merge pull request #64183 from WanLinghao/ctl_set_subject_fix
Automatic merge from submit-queue (batch tested with PRs 63232, 64257, 64183, 64266, 64134). 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>.

fix kubectl set subject --all option invalid bug

**What this PR does / why we need it**:
Fix the kubectl set subject --all option invalid bug and add test cases for 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 #64182

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2018-05-25 08:24:19 -07:00
Kubernetes Submit Queue
5e214cd7ea
Merge pull request #64257 from wojtek-t/trigger_for_secrets_storage
Automatic merge from submit-queue (batch tested with PRs 63232, 64257, 64183, 64266, 64134). 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>.

Trigger function for secrets
2018-05-25 08:24:11 -07:00
Kubernetes Submit Queue
a8cf18c0ae
Merge pull request #63232 from lichuqiang/provision_plumbing
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>.

Volume topology aware dynamic provisioning: basic plumbing

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

Split PR https://github.com/kubernetes/kubernetes/pull/63193 for better review
part 1: basic scheduler and controller plumbing

Next: https://github.com/kubernetes/kubernetes/pull/63233

**Which issue(s) this PR fixes** 
Feature: https://github.com/kubernetes/features/issues/561
Design: https://github.com/kubernetes/community/issues/2168

**Special notes for your reviewer**:
/sig storage
/sig scheduling
/assign @msau42 @jsafrane @saad-ali @bsalamat


**Release note**:

```release-note
Basic plumbing for volume topology aware dynamic provisioning
```
2018-05-25 07:58:53 -07:00
Daniel Gonzalez
7b5f3a1dc5 Ensure that only IPs are used as node addresses in OpenStack LBs 2018-05-25 16:34:31 +02:00
Kubernetes Submit Queue
c0f91a8a1e
Merge pull request #63414 from roycaihw/fix-delete-query
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 conversion to properly parse query parameter propagationPolicy

**What this PR does / why we need it**:
This delete request query parameter has been broken for a year. I'm not sure if we want to deprecate the non-standard DeleteOptions body on delete request eventually. 

**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 #43329

**Special notes for your reviewer**:

**Release note**:

```release-note
API server properly parses propagationPolicy as a query parameter sent with a delete request
```

/sig api-machinery
2018-05-25 06:59:05 -07:00
Jordan Liggitt
2a9d491fb8
Revert "Change default min-startup-pods value"
This reverts commit de0bf05f46.
2018-05-25 09:05:38 -04:00
Shyam Jeedigunta
f363f549c0 Measure scheduler throughput in density test 2018-05-25 14:49:11 +02:00
Kubernetes Submit Queue
8b442973ac
Merge pull request #64302 from krmayankk/refactor-rbd
Automatic merge from submit-queue (batch tested with PRs 64204, 64302). 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>.

simplify logic and remove else blocks

```release-note
NONE
```
2018-05-25 05:47:07 -07:00
Jan Safranek
5a099d70c9 Move Ceph server secret creation to common code. 2018-05-25 14:02:59 +02:00
Kubernetes Submit Queue
deb632e727
Merge pull request #64204 from sttts/sttts-unify-NewNoxuInstance
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>.

apiextensions: unify mono- and multi-versioned test helpers

The mono-versioned helpers are a special case of the multi-versioned ones.

Fixes part of https://github.com/kubernetes/kubernetes/issues/64136.
2018-05-25 04:49:37 -07:00
Kubernetes Submit Queue
28f171bd66
Merge pull request #63893 from jennybuckley/expose-openapi-to-registry3
Automatic merge from submit-queue (batch tested with PRs 64175, 63893). 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>.

Expose openapi schema to handlers

**What this PR does / why we need it**:
Build an openapi spec for each api resource handler. This spec will be able to be consumed by server-side apply and server-side openapi validation.
The reason for putting it into master is so we can work on implementing server side validation against the openapi spec as well as server side apply, and it will make merging the server side apply feature branch a smaller, less risky PR

/sig api-machinery
/kind feature
cc @liggitt @lavalamp @seans3 @mbohlool @apelisse 

**Release note**:
```release-note
NONE
```
2018-05-25 03:50:14 -07:00
Kubernetes Submit Queue
8395b7c12e
Merge pull request #64175 from mtaufen/test-name-cleanup
Automatic merge from submit-queue (batch tested with PRs 64175, 63893). 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 colon separators to improve readability of test names

```release-note
NONE
```
2018-05-25 03:50:09 -07:00
xuzhonghu
cc210a4505 fix toleration validation invalid error 2018-05-25 18:03:22 +08:00
Lantao Liu
d4714f5c37 Update feature warning for log rotation flags.
Signed-off-by: Lantao Liu <lantaol@google.com>
2018-05-25 02:16:01 -07:00
Kubernetes Submit Queue
89b73711fe
Merge pull request #64049 from aveshagarwal/master-scheduler-flake
Automatic merge from submit-queue (batch tested with PRs 61963, 64279, 64130, 64125, 64049). 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>.

Fix TestSchedulerWithVolumeBinding to avoid setting predicate ordering.

It is causing data race condition as predicate ordering is changing global
variable `predicatesOrdering`. Infact this test does not require any special
predicate order and should work on default predicate ordering as far as
VolumeScheduling feature is enabled.

See these logs:

```
==================
==================
WARNING: DATA RACE
Read at 0x00c420894180 by goroutine 156:
  k8s.io/kubernetes/pkg/scheduler/core.podFitsOnNode()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/core/generic_scheduler.go:503 +0xbb
  k8s.io/kubernetes/pkg/scheduler/core.(*genericScheduler).findNodesThatFit.func1()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/core/generic_scheduler.go:353 +0x2f0
  k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.Parallelize.func1()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue/parallelizer.go:47 +0xa3

Previous write at 0x00c420894180 by goroutine 186:
  k8s.io/kubernetes/pkg/scheduler.TestSchedulerWithVolumeBinding()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/scheduler_test.go:663 +0x71
  testing.tRunner()
      /usr/lib/golang/src/testing/testing.go:777 +0x16d

Goroutine 156 (running) created at:
  k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.Parallelize()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue/parallelizer.go:43 +0x139
  k8s.io/kubernetes/pkg/scheduler/core.(*genericScheduler).findNodesThatFit()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/core/generic_scheduler.go:378 +0xe8a
  k8s.io/kubernetes/pkg/scheduler/core.(*genericScheduler).Schedule()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/core/generic_scheduler.go:131 +0x385
  k8s.io/kubernetes/pkg/scheduler.(*Scheduler).schedule()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/scheduler.go:192 +0xcd
  k8s.io/kubernetes/pkg/scheduler.(*Scheduler).scheduleOne()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/scheduler.go:447 +0x598
  k8s.io/kubernetes/pkg/scheduler.(*Scheduler).(k8s.io/kubernetes/pkg/scheduler.scheduleOne)-fm()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/pkg/scheduler/scheduler.go:182 +0x41
  k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil.func1()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:133 +0x61
  k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.JitterUntil()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:134 +0xcd
  k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait.Until()
      /home/avagarwa/upstream-code/gocode/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/wait/wait.go:88 +0x5a

Goroutine 186 (running) created at:
  testing.(*T).Run()
      /usr/lib/golang/src/testing/testing.go:824 +0x564
  testing.runTests.func1()
      /usr/lib/golang/src/testing/testing.go:1063 +0xa4
  testing.tRunner()
      /usr/lib/golang/src/testing/testing.go:777 +0x16d
  testing.runTests()
      /usr/lib/golang/src/testing/testing.go:1061 +0x4e1
  testing.(*M).Run()
      /usr/lib/golang/src/testing/testing.go:978 +0x2cd
  main.main()
      _testmain.go:52 +0x22a
==================
--- FAIL: TestSchedulerWithVolumeBinding (18.04s)
	testing.go:730: race detected during execution of test
FAIL
```

It is pretty easy to reproduce this race by following these steps:

```
cd pkg/scheduler
go test -c -race
stress -p 100 ./scheduler.test
```

Predicate ordering to this unit test was added here: https://github.com/kubernetes/kubernetes/pull/57168
Since the whole scheduler instance uses just one ordering at time, not sure what is the advantage. 

@kubernetes/sig-scheduling-bugs @bsalamat @k82cn @frobware @smarterclayton @sjenning 

```release-note
None
```
2018-05-25 01:09:29 -07:00
Kubernetes Submit Queue
690e42b734
Merge pull request #64125 from yujuhong/add-node-e2e-tags
Automatic merge from submit-queue (batch tested with PRs 61963, 64279, 64130, 64125, 64049). 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 node-exclusive tags to tests in test/e2e_node

Original issue: #59001
Depends on: #64128

Add node-exclusive tags based on the [proposal](https://docs.google.com/document/d/1BdNVUGtYO6NDx10x_fueRh_DLT-SVdlPC_SsXjYCHOE/edit#)

Follow-up PRs will:
 - Tag the tests in `test/e2e/common`
 - Change the test job configurations to use the new tests
 - Remove the unused, non-node-exclusive tags in `test/e2e_node`

**Release note**:

```release-note
NONE
```
2018-05-25 01:09:24 -07:00
Kubernetes Submit Queue
2470e31bdc
Merge pull request #64130 from yujuhong/add-tags-common-e2e
Automatic merge from submit-queue (batch tested with PRs 61963, 64279, 64130, 64125, 64049). 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 Node-exclusive tags to tests in test/e2e/common

Original issue: #59001

Add node-exclusive tags based on the [proposal](https://docs.google.com/document/d/1BdNVUGtYO6NDx10x_fueRh_DLT-SVdlPC_SsXjYCHOE/edit#)

Previous PR: #64125
Depends on: #64128

Follow-up PRs will:
 - Change the test job configurations to use the new tests
 - Remove the unused, non-node-exclusive tags in `test/e2e_node`

**Release note**:

```release-note
NONE
```
2018-05-25 01:09:20 -07:00
Kubernetes Submit Queue
e9327e50b4
Merge pull request #64279 from wangzhen127/dns-seccomp
Automatic merge from submit-queue (batch tested with PRs 61963, 64279, 64130, 64125, 64049). 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 default seccomp profile for DNS addons.

**What this PR does / why we need it**:
This PR sets the default seccomp profile of DNS addons to 'docker/default'. This PR is a followup of #62662. We are using 'docker/default' instead of 'runtime/default' in addons in order to handle node version skew. When seccomp profile is applied automatically by default later, we can remove those annotations.

This is PR is part of #39845.

**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
```
2018-05-25 01:09:16 -07:00
Kubernetes Submit Queue
f091073b0f
Merge pull request #61963 from roycaihw/optional-saddress-ccidr
Automatic merge from submit-queue (batch tested with PRs 61963, 64279, 64130, 64125, 64049). 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>.

Make serverAddressByClientCIDRs in discovery API optional

**What this PR does / why we need it**:
See https://github.com/kubernetes/kubernetes/issues/61868

**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 #61868

**Special notes for your reviewer**:
WIP: I'm having trouble updating swagger-spec using our update scripts. Thinking about removing swagger-spec from our code base as it has long passed deprecation. Sending this PR now to see the test results. 

**Release note**:

```release-note
Property `serverAddressByClientCIDRs` in `metav1.APIGroup` (discovery API) now become optional instead of required
```

/sig api-machinery
2018-05-25 01:09:12 -07:00
Mayank Kumar
83818ee0c8 simplify else 2018-05-25 00:38:54 -07:00
Silvery Fu
096dda3768 Rename and add unit test for ImageSizes 2018-05-24 23:29:23 -07:00
Guoliang Wang
f2cb23ad6a HandleError include the type of the error object 2018-05-25 14:02:37 +08:00
Kubernetes Submit Queue
d7c40cf69e
Merge pull request #64275 from mtaufen/dkcfg-beta
Automatic merge from submit-queue (batch tested with PRs 63417, 64249, 64242, 64128, 64275). 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>.

graduate DynamicKubeletConfig feature to beta

Everything in the https://github.com/kubernetes/features/issues/281 beta target except a few documentation-related items is complete. Docs should be done very soon, so I'm sending this PR to graduate to beta before freeze.

```release-note
The dynamic Kubelet config feature is now beta, and the DynamicKubeletConfig feature gate is on by default. In order to use dynamic Kubelet config, ensure that the Kubelet's --dynamic-config-dir option is set. 
```

/cc @luxas
2018-05-24 20:49:22 -07:00