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util/goroutinemap code cleanup
**What this PR does / why we need it**:
/kind cleanup
code cleanup
**Release note**:
```release-note
NONE
```
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backoff runtime errors in kubelet sync loop
The runtime health check can race with PLEG's first relist, and this
often results in an unnecessary 5 second wait during Kubelet bootstrap.
This change aims to improve the performance.
```release-note
NONE
```
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Feature gate for regional PDs
**What this PR does / why we need it**: Adding beta feature gate around regional PD support.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*: Partially addresses #59988
**Special notes for your reviewer**: This feature has already been in alpha for two releases, but at the time it was not gated with a Kubernetes feature gate. Instead it was controlled by a GCE-specific alpha gate. However, there are additional changes with GCE PD StorageClass parameters that we'd like to gate as well, and this is out of scope of GCE alpha gates.
/cc @saad-ali @lavalamp
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Update kubectl describe to print out PV node affinity
**What this PR does / why we need it**:
Print out PV NodeAffinity in kubectl describe.
Sample output:
```
Name: example-local-pv
Labels: foo1=bar1
foo2=bar2
Annotations: <none>
Finalizers: []
StorageClass: local-storage
Status: Available
Claim:
Reclaim Policy: Delete
Access Modes: RWO
Capacity: 5Gi
Node Affinity:
Required Terms:
Term 0: kubernetes.io/hostname in [my-node]
foo1 in [bar1, bar2]
Term 1: foo2 exists
Message:
Source:
Type: LocalVolume (a persistent volume backed by local storage on a node)
Path: /mnt/disks/ssd1
Events: <none>
```
No NodeAffinity is set:
```
Name: nfs
Labels: <none>
Annotations: <none>
Finalizers: []
StorageClass:
Status: Available
Claim:
Reclaim Policy: Retain
Access Modes: RWX
Capacity: 1Mi
Node Affinity: <none>
Message:
Source:
Type: NFS (an NFS mount that lasts the lifetime of a pod)
Server: 10.244.1.4
Path: /exports
ReadOnly: false
Events: <none>
```
**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#60119
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Fix StatefulSet set-based selector bug
**What this PR does / why we need it**:
ControllerRevisions were using selectors as the labels, in case of set-based selectors, the helper function to convert selectors to labels would break. This PR uses pod labels for ControllerRevision labels instead of selectors.
**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#59266
**Special notes for your reviewer**:
I'm trying to learn Kubernetes codebase and would be happy to make changes if anything is off.
**Release note**:
```release-note
Fix StatefulSet to work with set-based selectors.
```
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Make nodeport ip configurable
**What this PR does / why we need it**:
By default, kube-proxy accepts everything from NodePort without any filter. It can be a problem for nodes which has both public and private NICs, and people only want to provide a service in private network and avoid exposing any internal service on the public IPs.
This PR makes nodeport ip configurable.
**Which issue(s) this PR fixes**:
Closes: #21070
**Special notes for your reviewer**:
Design proposal see: https://github.com/kubernetes/community/pull/1547
Issue in feature repo: https://github.com/kubernetes/features/issues/539
**Release note**:
```release-note
Make NodePort IP addresses configurable
```
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CSI MountDevice/UnmountDevice Implementation
Fixes#60114
**What this PR does / why we need it**:
This PR Implements MountDevice and UnmountDevice for the CSI Plugin, the functions will call through to NodeStageVolume/NodeUnstageVolume for CSI plugins.
/sig storage
```release-note
Implements MountDevice and UnmountDevice for the CSI Plugin, the functions will call through to NodeStageVolume/NodeUnstageVolume for CSI plugins.
```
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don't use storage cache during apiserver unit test
General apiserver unit tests don't need to test the caching storage. It also leaks a bunch a goroutines which does bad things with race detection on and caused timeouts when upgrading etcd.
@kubernetes/sig-api-machinery-bugs
@sttts you can try pulling this in.
@liggitt doesn't affect "normal" runtime, which is why we only see it during tests. See relax.
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kubelet: fix bug where character device is not recognized
**What this PR does / why we need it**:
Fixes a bug where character devices are not recognized by the kubelet because we return `FileTypeBlockDev` instead of `FileTypeCharDev`.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Related issue: https://github.com/kubernetes/kubernetes/issues/5607
**Special notes for your reviewer**:
Kubelet event for bug: https://github.com/kubernetes/kubernetes/issues/5607#issuecomment-366366340
```
Warning FailedMount MountVolume.SetUp failed for volume "dev-fuse" : hostPath type check failed: /dev/fuse is not a character device
```
Commit where bug was introduced: 57ead4898b
**Release note**:
```release-note
Fixes a bug where character devices are not recongized by the kubelet
```
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Add support for external metrics in kubectl
**What this PR does / why we need it**:
Add support for metrics coming from external sources when describing or printing horizontal pod autoscaler objects. API change: #60096
@MaciekPytel @DirectXMan12
**Release note**:
```
NONE
```
Since the runtime may try to create mount points within
the sandbox, it will fail if the mount point is within
a read-only API data volume, like a secret or configMap
volume.
Create any needed mount points during volume setup.
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Support rbd-nbd for mounting operations on Ceph rbd volumes
**What this PR does / why we need it**:
This PR improves Ceph RBD support by allowing the pkg/volume/rbd to use the rbd-nbd client. This client is based on the common and broadly adopted (librados) librbd library, and it is being actively developed and maintained as part of the ceph upstream code base, unlike krbd.
**Which issue(s) this PR fixes**:
Fixes https://github.com/kubernetes/kubernetes/issues/32266
**Special notes for your reviewer**:
rbd-nbd will be used for Ceph rbd volumes if rbd fails.
Some inspiration was pulled from these PRs #38936 & #55866.
**Test Description**: Tested against a k8s cluster with centos/7 as the host os. rbd-nbd installed from package rbd-nbd-10.2.3.rpm.
Tested:
1. Fall-through to current rbd map/unmap when no rbd-nbd tools are found.
2. Map/Unmap through rbd-nbd.
3. Detecting image already mapped to a nbd device and skipping additional mapping.
4. Detecting image already mapped to a rbd device and skipping additional mapping through nbd.
5. Unmap in hosts having mixed rbd and nbd devices (caused by fall-throughs for some images).
6. Map failure in rbd-nbd due to missing image.
7. Map failure in rbd-nbd due to unreachable mon.
8. Fall-through to current rbd map when rbd-nbd map fails for any reason.
**Release note**:
```release-note
K8s supports rbd-nbd for Ceph rbd volume mounts.
```
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code-gen: output golint compliant 'Generated by' comment
New PR instead of reopening #58115 because /reopen did not work.
This won't be ready to merge until the upstream https://github.com/kubernetes/gengo/pull/94 merges. Once that merges, the second commit will be changed to godep-save.sh and update-staging-godeps.sh, and the last commit will be changed to update-all.sh
The failing test is due to the upstream changes not being merged yet
```devel-release-note
Go code generated by the code generators will now have a comment which allows them to be easily identified by golint
```
Fixes#56489
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Avoid explicit mention of glusterfs in error strings.
Signed-off-by: Humble Chirammal <hchiramm@redhat.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
```
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update aws plugin for block support
Update aws plugin to support block and volumeMode.
cc @jsafrane @mtanino @msau42
```release-note
AWS EBS volume plugin got block volume support
```
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kubectl: flag value bindings for common utils
**What this PR does / why we need it**:
/kind cleanup
/sig cli
xxxOptions did not get bound as default value for some flags.
This PR cleans those flag bindings in common utils library.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
xref #60366
**Special notes for your reviewer**:
/assign @deads2k
**Release note**:
```release-note
None
```
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flag value bindings for kubectl label/patch/taint/top commands
**What this PR does / why we need it**:
/kind cleanup
/sig cli
xxxOptions did not get bound as default value for some flags.
This PR cleans those flag bindings for `kubectl label/patch/taint/top` commands.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
xref #60366
**Special notes for your reviewer**:
/assign @deads2k
**Release note**:
```release-note
None
```
- Describe* calls should return aws.Error so caller can handle individual
errors. aws.Error already has enough context ("InvalidVolume.NotFound: The
volume 'vol-0a06cc096e989c5a2' does not exist")
- Deletion of already deleted volume should succeed.
Automatic merge from submit-queue (batch tested with PRs 60011, 59256, 59293, 60328, 60367). 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 `storageclass` into `storage` package under `plugin/pkg/admission`
We have two directories `storage` and `storageclass` under package `plugin/pkg/admission` and one subdir `storageobjectinuseprotection` of `storage` now.
- 1. Move `storageclass` into `storage` being `storage`'s sub-package since storageclass is one of the storage objects
- 2. fix golint failures
**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 CPU/Memory pod stats for CRI stats.
For https://github.com/kubernetes/features/issues/286.
Add CPU and memory stats for pod.
@kubernetes/sig-node-pr-reviews
/cc @dashpole @yujuhong @abhi @yguo0905
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
Summary API will include pod CPU and Memory stats for CRI container runtime.
```
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Use `Int32Ptr` function from utils instead of self-written versions
**What this PR does / why we need it**:
Replaces instances of newInt{,32} with `Int32Ptr` function from `k8s.io/kubernetes/pkg/util/pointer`
**Which issue(s) this PR fixes**:
Fixes#59971
**Release note**:
```release-note
NONE
```
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Require boilerplate on Bazel Skylark source files
**What this PR does / why we need it**: `.bzl` files are also source code, so they should probably have the boilerplate text too.
**Release note**:
```release-note
NONE
```
