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Deprecation notice of the storage-versions flag
This PR deprecates the `--storage-versions` flag of kube-apiserver. The flag allows user to change the API version the content in etcd will be serialized to.
The flag provides unnecessary flexibility, with the side-effect of making kube-apiserver upgrades/downgrades hard to reason about. Specifically, Kubernetes follows the 4-step API version deprecation [policy](https://kubernetes.io/docs/reference/using-api/deprecation-policy/), which makes upgrades/downgrades across minor versions safe as long as all the data in etcd is encoded to the default storage versions. However, if users can specify their own storage versions, then the safety of each upgrade/downgrade needs to be analyzed case-by-case.
```release-note
Action required: The --storage-versions flag of kube-apiserver is deprecated. Please omit this flag to ensure the default storage versions are used. Otherwise the cluster is not safe to upgrade to a version newer than 1.12. This flag will be removed in 1.13.
```
/assign @deads2k @liggitt @lavalamp @enj
/sig api-machinery
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Fix volume scheduling issue with pod affinity and anti-affinity
**What this PR does / why we need it**:
The previous design of the volume scheduler had volume assume + bind done before pod assume + bind. This causes issues when trying to evaluate future pods with pod affinity/anti-affinity because the pod has not been assumed while the volumes have been decided.
This PR changes the design so that volume and pod are assumed first, followed by volume and pod binding. Volume binding waits (asynchronously) for the operations to complete or error. This eliminates the subsequent passes through the scheduler to wait for volume binding to complete (although pod events or resyncs may still cause the pod to run through scheduling while binding is still in progress). This design also aligns better with the scheduler framework design, so will make it easier to migrate in the future.
Many changes had to be made in the volume scheduler to handle this new design, mostly around:
* How we cache pending binding operations. Now, any delayed binding PVC that is not fully bound must have a cached binding operation. This also means bind API updates may be repeated.
* Waiting for the bind operation to fully complete, and detecting failure conditions to abort the bind and retry scheduling.
**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#65131
**Special notes for your reviewer**:
**Release note**:
```release-note
Fixes issue where pod scheduling may fail when using local PVs and pod affinity and anti-affinity without the default StatefulSet OrderedReady pod management policy
```
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Kubelet: only apply default hard evictions of nodefs.inodesFree on Linux
**What this PR does / why we need it**:
Kubelet sets default hard evictions of `nodefs.inodesFree ` for all platforms today. This will cause errors on Windows and a lot `no observation found for eviction signal nodefs.inodesFree` errors will be logs for kubelet.
```
kubelet.err.log:4961:W0711 22:21:12.378789 2872 helpers.go:808] eviction manager: no observation found for eviction signal nodefs.inodesFree
kubelet.err.log:4967:W0711 22:21:30.411371 2872 helpers.go:808] eviction manager: no observation found for eviction signal nodefs.inodesFree
kubelet.err.log:4974:W0711 22:21:48.446456 2872 helpers.go:808] eviction manager: no observation found for eviction signal nodefs.inodesFree
kubelet.err.log:4978:W0711 22:22:06.482441 2872 helpers.go:808] eviction manager: no observation found for eviction signal nodefs.inodesFree
```
This PR updates the default hard eviction value and only apply nodefs.inodesFree on Linux.
**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#66088
**Special notes for your reviewer**:
**Release note**:
```release-note
Kubelet only applies default hard evictions of nodefs.inodesFree on Linux
```
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Add kubelet stats for windows system container "pods"
**What this PR does / why we need it**:
This PR adds kubelet stats for windows system container "pods". Without this, kubelet will always logs error:
```
kubelet.err.log:4832:E0711 22:12:49.241358 2872 helpers.go:735] eviction manager: failed to construct signal: "allocatableMemory.available" error: system container "pods" not found
```
**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#66087
**Special notes for your reviewer**:
/sig windows
/sig node
**Release note**:
```release-note
Add kubelet stats for windows system container "pods"
```
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CSI Cluster Registry and Node Info CRDs Improvements
**What this PR does / why we need it**:
https://github.com/kubernetes/kubernetes/pull/67803 merged before I could address @lavalamp's feedback. This PR addresses his feedback
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Follow up on PR https://github.com/kubernetes/kubernetes/pull/67803
**Special notes for your reviewer**:
**Release note**:
```release-note
```
/assign @lavalamp
/assign @thockin
CC @jsafrane @vladimirvivien @verult @gnufied @childsb
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TTL for cleaning up Jobs after they finish
**What this PR does / why we need it**: https://github.com/kubernetes/features/issues/592
**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#64470
For https://github.com/kubernetes/features/issues/592
**Special notes for your reviewer**: @kubernetes/sig-apps-pr-reviews
**Release note**:
```release-note
Add a TTL machenism to clean up Jobs after they finish.
```
* FindPodVolumes
* Prebound PVCs are treated like unbound immediate PVCs and will error
* Always check for fully bound PVCs and cache bindings for not fully
bound PVCs
* BindPodVolumes
* Retry API updates for not fully bound PVCs even if the assume cache
already marked it
* Wait for PVCs to be fully bound after making the API updates
* Error when detecting binding/provisioning failure conditions
1. If TTLAfterFinished feature is enabled, the value should be non-negative.
2. If TTLAfterFinished feature is disabled, the field value should not
be kept.
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Added support to get clusters in gce cloud provider.
**What this PR does / why we need it**:
Implemented the call to get all cluster objects in a zone for a project.
Also added code to allow the container api to be set in the gce.conf
file.
**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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Not split nodes when searching for nodes but doing it all at once
**What this PR does / why we need it**:
Not split nodes when searching for nodes but doing it all at once.
**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**:
@bsalamat
This is a follow up PR of #66733.
https://github.com/kubernetes/kubernetes/pull/66733#discussion_r205932531
**Release note**:
```release-note
Not split nodes when searching for nodes but doing it all at once.
```
Automatic merge from submit-queue (batch tested with PRs 63011, 68089, 67944, 68132). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Start deprecating all generators in run except for run-pod/v1
**What this PR does / why we need it**:
This was discussed during SIG-CLI meetings over several past months. The direction is that we want to move away from `kubectl run` because it's over bloated and complicated for both users and developers. We want to mimic `docker run` with `kubectl run` so that it *only* creates a pod, and if you're interested in other resources `kubectl create` is the intended replacement.
This PR starts with deprecating all of the generator except for the pod one.
/assign @juanvallejo
/sig cli
/milestone v1.12
**Release note**:
```release-note
Deprecate kubectl run generators, except for run-pod/v1
```
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Support both directory and block device for local volume plugin FileSystem VolumeMode
Support both directory and block device for local volume plugin FileSystem VolumeMode
xref: [local storage dynamic provisioning design #1914](https://github.com/kubernetes/community/pull/1914)
**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
Support both directory and block device for local volume plugin FileSystem VolumeMode
```
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Move kube-controller-manager ComponentConfig external types to `k8s.io/kube-controller-manager`
**What this PR does / why we need it**:
As the title describe:
split `kube-controller-manager` component api into their own packages:
- external component api located in `k8s.io/kube-controller-manager/config/v1alpha/types.go`;
- internal component api located in `pkg/controller/apis/config/types.go`
**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 #
ref: [kubernetes/community#2354](https://github.com/kubernetes/community/pull/2354)
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue (batch tested with PRs 65074, 67469). If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.
Add CSI volume attributes for kubectl describe pv
**What this PR does / why we need it**:
/king feature
kubectl describe pv doesn't show the volume attributes.
**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#65021
**Special notes for your reviewer**:
/cc @saad-ali
**Release note**:
```release-note
Add CSI volume attributes for kubectl describe pv.
```
