Automatic merge from submit-queue (batch tested with PRs 65566, 67959, 68029, 68017, 67263). 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.
Move kubelet ComponentConfig external types to `k8s.io/kubelet`
**What this PR does / why we need it**:
This PR implements most of kubernetes/community#2354 for the kubelet.
The PR:
- Moves `k8s.io/kubernetes/pkg/apis/kubeletconfig` as-is to `k8s.io/kubernetes/pkg/apis/config` as agreed
- Moves the external types to the new staging repo `k8s.io/kubelet`, in the `k8s.io/kubelet/config/v1beta1` package.
- Makes `k8s.io/kubernetes/pkg/apis/config/v1beta1` source the types from `k8s.io/kubelet/config/v1beta1`. The defaulting and conversion code is kept in this package as before.
- All references to these packages have been updated.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref: kubernetes/community#2354
**Special notes for your reviewer**:
This PR depends on getting https://github.com/kubernetes/kubernetes/pull/67780 merged first.
**Release note**:
```release-note
kubelet v1beta1 external ComponentConfig types are now available in the `k8s.io/kubelet` repo
```
/assign @sttts @mtaufen @liggitt
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Add a ProcMount option to the SecurityContext & AllowedProcMountTypes to PodSecurityPolicy
So there is a bit of a chicken and egg problem here in that the CRI runtimes will need to implement this for there to be any sort of e2e testing.
**What this PR does / why we need it**: This PR implements design proposal https://github.com/kubernetes/community/pull/1934. This adds a ProcMount option to the SecurityContext and AllowedProcMountTypes to PodSecurityPolicy
Relies on https://github.com/google/cadvisor/pull/1967
**Release note**:
```release-note
ProcMount added to SecurityContext and AllowedProcMounts added to PodSecurityPolicy to allow paths in the container's /proc to not be masked.
```
cc @Random-Liu @mrunalp
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Change CPU sample sanitization in HPA.
**What this PR does / why we need it**:
Change CPU sample sanitization in HPA.
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
**Release notes:**
```release-note
Improve CPU sample sanitization in HPA by taking metric's freshness into account.
```
Ignore samples if:
- Pod is beeing initalized - 5 minutes from start defined by flag
- pod is unready
- pod is ready but full window of metric hasn't been colected since
transition
- Pod is initialized - 5 minutes from start defined by flag:
- Pod has never been ready after initial readiness period.
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Move kubelet internal ComponentConfig types to `pkg/kubelet/apis/config`
**What this PR does / why we need it**:
This PR is split out from the main PR of https://github.com/kubernetes/kubernetes/pull/67263, in order to make merging each scoped piece of the puzzle easier and smoother.
This PR simply moves the `k8s.io/kubernetes/pkg/apis/kubeletconfig` as-is to `k8s.io/kubernetes/pkg/apis/config` as agreed in the KEP.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref: kubernetes/community#2354
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
@kubernetes/sig-node-pr-reviews
/assign @mtaufen @thockin @liggitt
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Move volume dynamic provisioning scheduling to beta
**What this PR does / why we need it**:
* Combine feature gate VolumeScheduling and DynamicProvisioningScheduling into one
* Add allowedTopologies description in kubectl
**Special notes for your reviewer**:
Wait until related e2e and downside plugins are ready.
/hold
**Release note**:
```release-note
Move volume dynamic provisioning scheduling to beta (ACTION REQUIRED: The DynamicProvisioningScheduling alpha feature gate has been removed. The VolumeScheduling beta feature gate is still required for this feature)
```
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SCTP support implementation for Kubernetes
**What this PR does / why we need it**: This PR adds SCTP support to Kubernetes, including Service, Endpoint, and NetworkPolicy.
**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#44485
**Special notes for your reviewer**:
**Release note**:
```release-note
SCTP is now supported as additional protocol (alpha) alongside TCP and UDP in Pod, Service, Endpoint, and NetworkPolicy.
```
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Move kubeproxy ComponentConfig external types to `k8s.io/kube-proxy`
**What this PR does / why we need it**:
This PR implements most of kubernetes/community#2354 for the kube-proxy.
The PR:
- Moves k8s.io/kubernetes/pkg/proxy/apis/kubeproxyconfig as-is to k8s.io/kubernetes/pkg/proxy/apis/config as agreed
- Moves the external types to the new staging repo k8s.io/kube-proxy, in the k8s.io/kube-proxy/config/v1beta1 package.
- Makes k8s.io/kubernetes/pkg/proxy/apis/config/v1beta1 source the types from k8s.io/kube-proxy/config/v1beta1. The defaulting and conversion code is kept in this package as before.
- All references to these packages have been updated.
Ref #67233
**Special notes for your reviewer**:
**Release note**:
```release-note
kube-proxy v1beta1 external ComponentConfig types are now available in the `k8s.io/kube-proxy` repo
```
The requested Service Protocol is checked against the supported protocols of GCE Internal LB. The supported protocols are TCP and UDP.
SCTP is not supported by OpenStack LBaaS. If SCTP is requested in a Service with type=LoadBalancer, the request is rejected. Comment style is also corrected.
SCTP is not allowed for LoadBalancer Service and for HostPort. Kube-proxy can be configured not to start listening on the host port for SCTP: see the new SCTPUserSpaceNode parameter
changed the vendor github.com/nokia/sctp to github.com/ishidawataru/sctp. I.e. from now on we use the upstream version.
netexec.go compilation fixed. Various test cases fixed
SCTP related conformance tests removed. Netexec's pod definition and Dockerfile are updated to expose the new SCTP port(8082)
SCTP related e2e test cases are removed as the e2e test systems do not support SCTP
sctp related firewall config is removed from cluster/gce/util.sh. Variable name sctp_addr is corrected to sctpAddr in pkg/proxy/ipvs/proxier.go
cluster/gce/util.sh is copied from master
Automatic merge from submit-queue (batch tested with PRs 66916, 67252, 67794, 67619, 67328). 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 HPA sample sanitization
**What this PR does / why we need it**: @mwielgus pointed out a case when HPA fails as a result of my changes to HPA algorithm:
- Have pods that use a lot of CPU during initilization, become ready right after they initialize,
- Trigger a scale up,
- When new pods become ready will will count their usage (even though it's not related to any work that needs doing),
- This triggers another scale up, even though existing pods can handle work, no problem.
The fix is:
- Use all samples for non-cpu metrics.
- Only use CPU samples if:
- Pod is ready and was started more than 2 minutes ago, or
- Pod is unready and last readiness change happened more than 10s after it was started.
Reasoning behind this in: https://docs.google.com/document/d/1UdtYedhmCxjaJIQi6hwJMY0eHQQKxlVD8lSHZC1BPOA/edit
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
**Release note**:
```release-note
Replace scale up forbidden window with disregarding CPU samples collected when pod was initializing.
```
Duration of initialization taint on CPU and window of initial readiness
setting controlled by flags.
Adding API violation exceptions following example of e50340ee23
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fix OpenAPI link
**What this PR does / why we need it**:
Fix OpenAPI broken link
**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
```
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>.
Promote ShareProcessNamespace to beta
**What this PR does / why we need it**: The ability to configure PID namespace sharing per-pod was added as an alpha feature in 1.10. This promotes the feature to beta and makes the feature available by default.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
WIP #1615
**Special notes for your reviewer**:
/assign @yujuhong
**Release note**:
```release-note
The PodShareProcessNamespace feature to configure PID namespace sharing within a pod has been promoted to beta.
```
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Make admission webhooks conversion convert CONNECT body correctly
Fix#59759.
1. Make apiserver pass connectRequest.Options directly to the admission layer. All other information in rest.ConnectRequest is present in admission attributes.
2. Make the scope.Kind of pod/attach, pod/exec, pod/portforward, node/proxy, service/proxy to their respective options Kind, instead of the parent Kind.
I've tested it locally, the conversion is working correctly for "kubectl attach". I'll add e2e tests.
I'll keep this to myself until I add the tests, but cc @mikedanese @liggitt RE. https://github.com/kubernetes/kubernetes/pull/66633.
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Update openapi and doc to reflect 202 path in API server delete handler
**What this PR does / why we need it**:
Our API server returns 202 Accepted if a delete operation is asynchronous, but it is not reflected in our openapi spec and documentation. This PR adds 202 path in endpoint installer and updates our openapi spec and docs. The change in openapi spec may affect some clients that depend on the error paths. [Python client](e057f27306/kubernetes/client/api_client.py (L97-L102)) only depends on response type, which is not changed in this PR. Sending this PR to see if it breaks client-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)*:
ref https://github.com/kubernetes/kubernetes/issues/33196
**Special notes for your reviewer**:
**Release note**:
```release-note
OpenAPI spec and documentation reflect 202 Accepted response path for delete request
```
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Fixing comments in types.go to describe the changes for CSI driver default FS type override fix
This PR fixes the comment in types.go which was made in the commit 5dfe7b5758
In the above commit, the change that fixed the override of default FSType for CSI driver was made. However the comments in types.go were made for GCEPersistentDiskVolumeSource and RBDVolumeSource respectively. This commit fixes that comment to reflect the changes for CSI driver
```release-note
none
```
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Bugfix/csi default fs type
This PR address the issue mentioned in the following ticket https://github.com/kubernetes/kubernetes/issues/65122
The FSType string will now not be defaulted to ext4. Removes defaulting of CSI file system type to ext4. CSI plugins that depended on this default need to be updated as the fsType would remain an empty string if not provided and would not default to ext4. CSI spec allows for an empty fstype string. This is intended for non-block plugins like nfs and gluster where filesystems are not separately created on the volume. But currently the default file system is overridden to ext4 which makes the above case redundant. This commit prevents such an overridding.
```release-note
ACTION REQUIRED: Removes defaulting of CSI file system type to ext4. All the production drivers listed under https://kubernetes-csi.github.io/docs/Drivers.html were tested and work as expected after this change. If you are using a driver not in that list, please test the drivers on an updated test cluster first. ```
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Fix openapi spec: posting a rollback returns a deploymentstatus
**What this PR does / why we need it**:
Fix openapi spec and documentation. Posting a rollback doesnt return a rollback object, it instead returns a deployment status.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref #56591
**Release note**:
```release-note
NONE
```
/sig api-machinery
/sig apps
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Fix scale io volume source spec
**What this PR does / why we need it**:
> FSType
Implicitly inferred to be "ext4" if unspecified.
Actually the default value to "xfs".
**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 support for enforcing read only host paths in PSPs.
**What this PR does / why we need it**:
This PR adds support for the PSP to enforce that host paths are readonly.
**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#57371
xref https://github.com/kubernetes/features/issues/5
**Special notes for your reviewer**:
**Release note**:
```release-note
PodSecurityPolicy now supports restricting hostPath volume mounts to be readOnly and under specific path prefixes
```
/cc @ericchiang @liggitt
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core v1: deprecate the gitRepo volume type
gitRepo stopped accepting new features nearly 2 years ago https://github.com/kubernetes/kubernetes/issues/17676#issuecomment-228650586 and today this behavior can easily be achieved through an init container. The kubelet shelling out to git in the host namespace can also be a security issue on un-trusted repos, as was demonstrated by [CVE-2017-1000117](https://groups.google.com/forum/#!topic/kubernetes-announce/CTLXJ74cu8M). Our own documentation even alludes to this volume type being removed in the future:
> In the future, such volumes may be moved to an even more decoupled model, rather than extending the Kubernetes API for every such use case.
https://kubernetes.io/docs/concepts/storage/volumes/#gitrepo
Closes https://github.com/kubernetes/kubernetes/issues/60999
```release-note-action-required
The GitRepo volume type is deprecated. To provision a container with a git repo, mount an EmptyDir into an InitContainer that clones the repo using git, then mount the EmptyDir into the Pod's container.
```
/release-note-action-required
Instead of this:
```yaml
apiVersion: v1
kind: Pod
metadata:
name: server
spec:
containers:
- image: nginx
name: nginx
volumeMounts:
- mountPath: /mypath
name: git-volume
volumes:
- name: git-volume
gitRepo:
repository: "git@somewhere:me/my-git-repository.git"
revision: "22f1d8406d464b0c0874075539c1f2e96c253775"
```
Do this:
```yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: git-clone
data:
git-clone.sh: |
#!/bin/sh -e
git clone $1 $3
cd $3
git reset --hard $2
---
apiVersion: v1
kind: Pod
metadata:
name: server
spec:
initContainers:
- name: git-clone
image: alpine/git # Any image with git will do
command:
- /usr/local/git/git-clone.sh
args:
- "https://somewhere/me/my-git-repository.git"
- "22f1d8406d464b0c0874075539c1f2e96c253775"
- "/mypath"
volumeMounts:
- name: git-clone
mountPath: /usr/local/git
- name: git-repo
mountPath: /mypath
containers:
- image: nginx
name: nginx
volumeMounts:
- mountPath: /mypath
name: git-volume
volumes:
- name: git-volume
emptyDir: {}
- name: git-clone
configMap:
name: git-clone
defaultMode: 0755
```
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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
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Fix documentation of GA is in APIService's PriorityVersion and CRD's Versions
Explain what GA is in APIService's PriorityVersion and CRD's Versions.
ref #64136
```release-note
NONE
```
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apiservices/status and certificatesigningrequests/status support get+update+patch
**What this PR does / why we need it**:
Fix the remaining `/status` subresources that return 405 on GET and PATCH
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
ref https://github.com/kubernetes/kubernetes/pull/63619
**Release note**:
```release-note
apiservices/status and certificatesigningrequests/status now support GET and PATCH
```
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Sort API Services by Kube-Version order
Sort API services based on kube-version format. If the version does not have kube-version format.
kube-version format: `v[MajorVersion]((alpha|beta)[minorVersion])?`
e.g. v1alpha1, v4, v21beta12
Sort base on:
Version type first: GA>Beta>Alpha
Major version then Minor version (if exists).
```release-note
APIServices with kube-like versions (e.g. v1, v2beta1, etc.) will be sorted appropriately within each group.
```
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apiextensions: promote CustomResourcesSubresources to beta
Fixes#62786
This PR promotes the CustomResourcesSubResources feature to beta and makes it enabled by default.
**Release note**:
```release-note
Subresources for custom resources is now beta and enabled by default. With this, updates to the `/status` subresource will disallow updates to all fields other than `.status` (not just `.spec` and `.metadata` as before). Also, `required` can be used at the root of the CRD OpenAPI validation schema when the `/status` subresource is enabled.
```
/assign sttts deads2k
/sig api-machinery
/area custom-resources
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Move to a structured status for dynamic kubelet config
This PR updates dynamic Kubelet config to use a structured status, rather than a node condition. This makes the status machine-readable, and thus more useful for config orchestration.
Fixes: #56896
```release-note
The status of dynamic Kubelet config is now reported via Node.Status.Config, rather than the KubeletConfigOk node condition.
```
Updates dynamic Kubelet config to use a structured status, rather than a
node condition. This makes the status machine-readable, and thus more
useful for config orchestration.
Fixes: #56896
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Actually support service `publishNotReadyAddresses`
This was added and the annotation was deprecated, but it was never
implemented.
xref #63741
**Release note**:
```release-note
The annotation `service.alpha.kubernetes.io/tolerate-unready-endpoints` is deprecated. Users should use Service.spec.publishNotReadyAddresses instead.
```
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Create pkg/scheduling/apis/v1beta1 and move priorityClass to beta
**What this PR does / why we need it**:
This is for creating pkg/apis/scheduling/v1beta1 so that priorityClasses could be moved to beta.
**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 #57471
**Special notes for your reviewer**:
/cc @bsalamat @aveshagarwal
**Release note**:
```release-note
The `PriorityClass` API is promoted to `scheduling.k8s.io/v1beta1`
```
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CRD Status subresource support get+update+patch
CRD Status previously only supports PUT and returns 405 on GET and PATCH
/assign @sttts
/sig api-machinery
**Release note**:
```release-note
CustomResourceDefinitions Status subresource now supports GET and PATCH
```
Kubernetes Submit Queue