Commit Graph

29256 Commits

Author SHA1 Message Date
Hemant Kumar
b33aaa0df4 Remove mutation from pvc validation 2017-12-14 16:54:32 -05:00
Kubernetes Submit Queue
2d57d9b1ea Merge pull request #56146 from jiulongzaitian/style_code
Automatic merge from submit-queue (batch tested with PRs 57172, 55382, 56147, 56146, 56158). 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>.

delete useless params containerized

Signed-off-by: zhangjie <zhangjie0619@yeah.net>



**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
     delete useless params containerized
```
2017-12-14 12:38:19 -08:00
Kubernetes Submit Queue
bf5f96d64a Merge pull request #56147 from andyzhangx/mountoptions-azuredisk
Automatic merge from submit-queue (batch tested with PRs 57172, 55382, 56147, 56146, 56158). 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 mount options support for azure disk

**What this PR does / why we need it**:
add mount options support for azure disk

example azure class with mount options:
```
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: hdd
provisioner: kubernetes.io/azure-disk
mountOptions:
  - barrier=1
  - acl
parameters:
  skuname: Standard_LRS
  kind: Managed
  fstype: ext3
```

**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 #56131

**Special notes for your reviewer**:

**Release note**:

```
add mount options support for azure disk
```
/sig azure
/assign @rootfs
2017-12-14 12:38:15 -08:00
Kubernetes Submit Queue
578f3db8d5 Merge pull request #55382 from vikaschoudhary16/checkpoint
Automatic merge from submit-queue (batch tested with PRs 57172, 55382, 56147, 56146, 56158). 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 file store utility for device plugin checkpointing

Partially address issue #54088
cc @sjenning @jeremyeder @jiayingz @vishh 

/sig node
2017-12-14 12:38:13 -08:00
David Zhu
e3f8f64c17 refactored mount, attach, resize operation's so that all failures generate events and event generation is more consistent.
refactored operation generator and operation executor to use more general generated functions for operations, completions, and events.
2017-12-14 11:09:12 -08:00
Eric Chiang
8dc4c4089b pkg/controller/bootstrap: update jose package 2017-12-14 09:37:55 -08:00
Kubernetes Submit Queue
fceabcdb09 Merge pull request #57178 from chrislovecnm/aws-owners
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>.

Adding myself as a reviewer to aws cloud provider

/assign @justinsb 
/release-note-none
/approve no-issue
2017-12-14 08:30:37 -08:00
Kubernetes Submit Queue
7908e96539 Merge pull request #56191 from ConnorDoyle/cpu-manager-panic-state-init-error
Automatic merge from submit-queue (batch tested with PRs 54410, 56184, 56199, 56191, 56231). 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>.

CPU Manager panics on state initialization error.

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

- CPU Manager panics on state initialization error.
- Update unit tests accordingly.
- Minor related cleanup in `state_file.go`.

**Special notes for your reviewer**:

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

/kind bug
/sig node
/priority important-soon
Blocks #52031
/assign @balajismaniam 
cc @flyingcougar
2017-12-14 05:33:17 -08:00
Kubernetes Submit Queue
d51e67af0b Merge pull request #56199 from langyenan/gce
Automatic merge from submit-queue (batch tested with PRs 54410, 56184, 56199, 56191, 56231). 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>.

Delete unused code in gce/ensureInternalBackendService

existingIGLinks is not used after initialization,  because instance groups are compared in backendSvcEqual()

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

/area cloudprovider
/area platform/gce
/sig gcp
2017-12-14 05:33:14 -08:00
Kubernetes Submit Queue
e9a9da8aa3 Merge pull request #54410 from intelsdi-x/cpu-reconcile-state
Automatic merge from submit-queue (batch tested with PRs 54410, 56184, 56199, 56191, 56231). 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>.

Cpu manager reconcile loop - restore state

**What this PR does / why we need it**:
Cpu manager reconcile loop can add orphaned containers to `State` calling `policy.AddContainer()`
Previous PR: #54409 
e2e tests PR: #53378

Blocked by #56191
2017-12-14 05:33:08 -08:00
Kubernetes Submit Queue
f2ff2da235 Merge pull request #55992 from zhangxiaoyu-zidif/fix-binary-check-nfs
Automatic merge from submit-queue (batch tested with PRs 55925, 55999, 55944, 55992, 56196). 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 binary check for nfs.go

**What this PR does / why we need it**:
err check can't show that the binary does not exist.
If the binary does not exist, the err still be nil ever. 
we should add print check to show if the binary exist.

**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 https://github.com/kubernetes/kubernetes/issues/56479

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-12-14 04:32:20 -08:00
Kubernetes Submit Queue
df053ae34a Merge pull request #55944 from edisonxiang/probeimprovecinder
Automatic merge from submit-queue (batch tested with PRs 55925, 55999, 55944, 55992, 56196). 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>.

probeAttachedVolume improvement in Cinder

What this PR does / why we need it:

During OpenStack Cinder volume attachment, kubelet creates too many udev "change" events.
If volume attachement takes long, then udev event queue gets full,therefore
udev does not answer requests from docker, and makes Kubernetes node unhealthy.

This patch will extend the udevadm trigger period,
and use the udevadm settle to ensure that any device nodes
have been created successfully before proceeding.

Fixes #55007

Release note:

```release-note
None
```

/cc @dims @kabakaev
2017-12-14 04:32:16 -08:00
Kubernetes Submit Queue
4292b17c71 Merge pull request #55925 from tengqm/fix-feature-comment
Automatic merge from submit-queue (batch tested with PRs 55925, 55999, 55944, 55992, 56196). 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 version indication for ServiceNodeExclusion

**What this PR does / why we need it**:
The `ServiceNodeExclusion` feature gate didn't make it into v1.8.
This PR fixes the comment to avoid confusion for future maintenance.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-12-14 04:32:09 -08:00
Kubernetes Submit Queue
2a70dc8746 Merge pull request #55376 from yuexiao-wang/add-validate
Automatic merge from submit-queue (batch tested with PRs 55900, 55995, 55913, 55467, 55376). 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>.

Improve unit test coverage of scale

**What this PR does / why we need it**:
1. Add unit test of ReplicaSet and StatefulSet to improve coverage of scale
2. Fix variable "fake" collideds with imported package name
3. Use Error with no value format and fix typo error messages

**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
```
2017-12-14 00:45:25 -08:00
Kubernetes Submit Queue
8e161212f6 Merge pull request #55913 from wackxu/refauto
Automatic merge from submit-queue (batch tested with PRs 55900, 55995, 55913, 55467, 55376). 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 structured generator for kubectl autoscale

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

Use structured generator for kubectl autoscale

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
part of  # https://github.com/kubernetes/kubectl/issues/138

**Special notes for your reviewer**:
/assign @mengqiy 

**Release note**:

```release-note
Use structured generator for kubectl autoscale 
```
2017-12-14 00:45:18 -08:00
Kubernetes Submit Queue
baf93c060e Merge pull request #55995 from supereagle/extensions-client-with-version
Automatic merge from submit-queue (batch tested with PRs 55900, 55995, 55913, 55467, 55376). 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 extensions client with explicit version

**What this PR does / why we need it**:
Extensions client without explicit version has been deprecated, change them to the one with explicit version.

**Which issue(s) this PR fixes**:
Fixes partially #55993

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-12-14 00:45:15 -08:00
Kubernetes Submit Queue
69b9007667 Merge pull request #55866 from zhangxiaoyu-zidif/make-k8s-support-ceph-fuse
Automatic merge from submit-queue (batch tested with PRs 55954, 56037, 55866, 55984, 54994). 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 k8s support cephfs fuse mount

**What this PR does / why we need it**:
make  k8s support cephfs fuse.

**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 https://github.com/kubernetes/kubernetes/issues/46636, https://github.com/kubernetes/kubernetes/issues/44486

**Special notes for your reviewer**:

**Release note**:

```release-note
K8s supports cephfs fuse mount.
```
2017-12-13 23:25:56 -08:00
Kubernetes Submit Queue
be4f638ce7 Merge pull request #56037 from m1093782566/cleanup-deadcode
Automatic merge from submit-queue (batch tested with PRs 55954, 56037, 55866, 55984, 54994). 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>.

remove dead code

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

remove dead code in IPVS kube-proxy

**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 @thockin
2017-12-13 23:25:52 -08:00
Kubernetes Submit Queue
876259435a Merge pull request #55991 from supereagle/core-client-with-version
Automatic merge from submit-queue (batch tested with PRs 54604, 55781, 55806, 55935, 55991). 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 core client with explicit version

**What this PR does / why we need it**:
Core client without explicit version has been deprecated, change them to the one with explicit version.

**Which issue(s) this PR fixes**:
Fixes partially #55993

**Special notes for your reviewer**:
/cc @kubernetes/sig-api-machinery-pr-reviews
/cc @caesarxuchao @k82cn @sttts @kevin-wangzefeng 

**Release note**:
```release-note
NONE
```
2017-12-13 22:26:01 -08:00
Kubernetes Submit Queue
126cb5eab9 Merge pull request #55935 from mindprince/remove-incorrect-dead-code
Automatic merge from submit-queue (batch tested with PRs 54604, 55781, 55806, 55935, 55991). 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>.

Remove incorrect dead code.

TolerationToleratesTaint was incorrect: if the toleration.Key is empty and
taint is non-empty, it should not return false. It was also not used anywhere.

The correct implementations are in staging/src/k8s.io/api/core/v1/toleration.go
and pkg/apis/core/v1/helper/helpers.go

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

/sig scheduling
/sig api-machinery
/kind bug
2017-12-13 22:25:58 -08:00
Kubernetes Submit Queue
ec693a6c5f Merge pull request #55806 from php-coder/cleanup_internal_effective_sc
Automatic merge from submit-queue (batch tested with PRs 54604, 55781, 55806, 55935, 55991). 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>.

InternalDetermineEffectiveSecurityContext: remove unused function

**What this PR does / why we need it**:
This PR removes unused `InternalDetermineEffectiveSecurityContext` and `internalSecurityContextFromPodSecurityContext` functions.

We stopped using it in the following commit: https://github.com/kubernetes/kubernetes/pull/52849/files#diff-291b8dd7d08cc034975ddb3925dbb08fL205

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

PTAL @liggitt 
CC @simo5
2017-12-13 22:25:55 -08:00
Kubernetes Submit Queue
20608b8918 Merge pull request #55781 from hzxuzhonghu/tmp-1
Automatic merge from submit-queue (batch tested with PRs 54604, 55781, 55806, 55935, 55991). 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>.

remove unused code in pkg/apimachinery

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

remove unused code in pkg/apimachinery

**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
```
2017-12-13 22:25:53 -08:00
Kubernetes Submit Queue
6145ea1e4f Merge pull request #54604 from stewart-yu/issues#10
Automatic merge from submit-queue (batch tested with PRs 54604, 55781, 55806, 55935, 55991). 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 pkg/apis/core/toleration.go

**What this PR does / why we need it**:
improve coverage for function

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes [https://github.com/kubernetes/kubernetes/issues/56753](https://github.com/kubernetes/kubernetes/issues/56753)

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-12-13 22:25:50 -08:00
chrislovecnm
20a465ee4a Adding myself as a reviewer to aws credentialprovider 2017-12-13 22:53:49 -07:00
chrislovecnm
4a16f16af4 Adding myself as a reviewer to aws cloud provider 2017-12-13 22:42:07 -07:00
Kubernetes Submit Queue
d5e3a792eb Merge pull request #55145 from huangjiuyuan/fix-manager-typo
Automatic merge from submit-queue (batch tested with PRs 52259, 53951, 54385, 54805, 55145). 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 a typo in NewManager function

**What this PR does / why we need it**:
Fix a typo in NewManager function

**Special notes for your reviewer**:

**Release note**:

`None`
2017-12-13 21:26:05 -08:00
Kubernetes Submit Queue
c06e7d46b5 Merge pull request #54385 from HardikDR/patch-2
Automatic merge from submit-queue (batch tested with PRs 52259, 53951, 54385, 54805, 55145). 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>.

Bugfix: Update AddNodeHandler error logs

**What this PR does / why we need it**: Its simple error log fix. Hope its not too small to be a separate PR.
2017-12-13 21:25:59 -08:00
Kubernetes Submit Queue
a0d4132344 Merge pull request #52259 from saad-ali/fixGCEDiskAlphaAPI
Automatic merge from submit-queue (batch tested with PRs 52259, 53951, 54385, 54805, 55145). 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>.

Change `GCEDiskAlphaAPI` to `DiskAlphaAPI` in comments

Fixes https://github.com/kubernetes/kubernetes/issues/52258
2017-12-13 21:25:53 -08:00
Jordan Liggitt
d073c10dbc Refactor flex pv to allow secret namespace 2017-12-13 23:32:16 -05:00
Kubernetes Submit Queue
65a7ecf147 Merge pull request #57045 from ConnorDoyle/add-connor-containermanager-owners
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 ConnorDoyle as approver in /pkg/kubelet/cm.

**What this PR does / why we need it**:
- Add github user `ConnorDoyle` (me) to the approvers list for `pkg/kubelet/cm`.

**Special notes for your reviewer**:
I would like to help with the review load in this package. I believe I have demonstrated good stewardship of sub-packages in this part of the code base.

```release-note
NONE
```

/sig node
/kind cleanup
/assign @derekwaynecarr
2017-12-13 19:32:53 -08:00
Kubernetes Submit Queue
9a03e7e17d Merge pull request #56325 from m1093782566/ipvs-readme
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 IPVS README

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

People complained that they feel confused about how to use IPVS-based kube-proxy correctly, probably we may need to provide them a better README.

**Which issue(s) this PR fixes**: 

xref: #56319

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
2017-12-13 19:32:11 -08:00
Kubernetes Submit Queue
bdd4820fed Merge pull request #56578 from shift/feature/docs-typo
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>.

Fixed typo in IPVS documentation

**What this PR does / why we need it**:
Fixed documentation typo

**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
Fixed documentation typo in IPVS README.
```
2017-12-13 19:32:01 -08:00
Tim Pepper
bd4e89cf5d kubectl: point info url to user guide overview
The kubectl command output suggests a user find more information at the
github source repo, eg:

	$ kubectl --help
	kubectl controls the Kubernetes cluster manager.

	Find more information at https://github.com/kubernetes/kubernetes.

But there is curated user documentation available at, eg:

	https://kubernetes.io/docs/reference/kubectl/overview/

which upon referencing yields a much better experience for a user than the
top of the source repo.

Fixes #56511

Signed-off-by: Tim Pepper <tpepper@vmware.com>
2017-12-13 17:01:50 -08:00
Manuel de Brito Fontes
bea2d8d1aa Fix NLB icmp permission duplication 2017-12-13 20:31:09 -03:00
Yongkun Anfernee Gui
cb6df34bef Test probe for redirect endpoint
Make sure #18233 works
2017-12-13 14:15:24 -08:00
David Eads
2f7793df7d allow convert to default on a per object basis 2017-12-13 08:48:14 -05:00
David Eads
7dc7693e86 make quota reusable 2017-12-13 08:39:55 -05:00
David Eads
3d65f4cbd3 expose special storage locations for downstream consumption 2017-12-13 08:23:25 -05:00
linyouchong
9c3b2a00ac fix incorrect log 2017-12-13 18:36:58 +08:00
Nikhita Raghunath
5da7b11a31 add benchmark for ConfigCompatibleWithStandardLibrary 2017-12-13 16:05:20 +05:30
Zhenguo Niu
7cccb94edb Kubectl: Move no-headers flag get out of for loop 2017-12-13 17:43:16 +08:00
Pengfei Ni
97fab90cd5 Fix unit tests 2017-12-13 14:21:57 +08:00
Pengfei Ni
86111df41d Add load balancer implementation of vmSet 2017-12-13 14:20:41 +08:00
Pengfei Ni
af5b079ef7 Initialize vmSet based on vmType setting and call vmSet interface instead of azureClient 2017-12-13 14:19:47 +08:00
Pengfei Ni
906abde733 Add availability sets implementation of VMSet interface 2017-12-13 14:17:37 +08:00
Pengfei Ni
7944bc3117 Add scale set implementation of VMSet interface 2017-12-13 14:16:01 +08:00
Pengfei Ni
806e4f5afa Add a general VMSet interface for both scale sets and availability sets 2017-12-13 14:11:55 +08:00
Pengfei Ni
f1e4181315 Enhance proxy mode validation 2017-12-13 13:29:21 +08:00
Kubernetes Submit Queue
38e3351312 Merge pull request #56818 from jiayingz/init-container-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>.

Re-uses device plugin resources allocated to init containers.

Implements option 2 mentioned in
https://github.com/kubernetes/kubernetes/issues/56022#issuecomment-348286184



**What this PR does / why we need it**:
This PR implements the option 2 solution discussed in https://github.com/kubernetes/kubernetes/issues/56022#issuecomment-348286184.
This is one of short-term fix we are considering for a 1.9 patch release. The alternative is to disallow requesting device plugin resources in init containers,
as PR https://github.com/kubernetes/kubernetes/pull/56659 is taking.
The long-term fix we want to implement for 1.10 is still open to discussion.

**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 https://github.com/kubernetes/kubernetes/issues/56022

**Special notes for your reviewer**:

**Release note**:

```release-note

```
2017-12-12 17:25:56 -08:00
Kubernetes Submit Queue
d052476c30 Merge pull request #57075 from chakri-nelluri/flex-ga
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>.

Mark Flexvolume as GA

Flex volume became GA from release 1.8 onwards. This PR fixes the comments to reflect it.

Fixes #56920 

**Special notes for your reviewer**:

**Release note**:
```release-note
Flexvolume feature has graduated to GA.
```
2017-12-12 14:52:01 -08:00