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Node E2E: Add image pull retry in image pulling test.

Fixes #29259, #28047.

This test added image pull retry in image pulling node e2e test. It will retry for 3 times until test successes.

This should be able to make the image pulling test less flaky.

@yujuhong

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Implement cleanup methods to cleanup underlying cluster resources in federated service tests.

cc @kubernetes/sig-cluster-federation @colhom

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[Pet Set] Fix losing pet updated information between update retries

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

Address #32481

@bprashanth

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kubenet: SyncHostports for both running and ready to run pods.

This fixes the race that happens in rktnetes when pod B invokes
'kubenet.SetUpPod()' before another pod A becomes actually running.

The second 'kubenet.SetUpPod()' call will not pick up the pod A
and thus overwrite the host port iptable rules that breaks pod A.

This PR fixes the case by listing all 'active pods' (all non-exited
pods) instead of only running pods.

Fix https://github.com/kubernetes/kubernetes/issues/27975 

Originally discussed in https://github.com/kubernetes/kubernetes/pull/27914#issuecomment-228140108

cc @euank @freehan @dcbw

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Generate API docs for authentication API group

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fix node update taints conflict in kubectl taint e2e

**What this PR does / why we need it**:
This PR is to fix node taint update conflict in kubectl taint e2e tests.
**Which issue this PR fixes**: fixes part of #29503

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Extend all to more resources

Added more things from the list here:
https://github.com/kubernetes/kubernetes/blob/master/pkg/kubectl/cmd/cmd.go#L159

Update the devel/kubectl-conventions.md with the rules mentioned by
a few folks on which resources could be added to the special 'all' alias

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Enable hostpath provisioner for vagrant environment

This flag is required to run e2e tests for certain features (petset), and for manual tests and debugging.

related: https://github.com/kubernetes/kubernetes/issues/32119

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Add godoc on using FakeClient with subresources

Add a little godoc on using FakeClient with subresources, hoping to prevent future occurences of #32127.

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remove dead mapper

Removing a write-only field I found looking at the registration code.

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Show errors in tars_from_version

Follow up from #32855

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make --include-extended-apis deprecated and remove plumbing

Marks a dead CLI parameter as deprecated and removes the plumbing for it.

Change-Id: I92e2b653ab78fca72ae41cf87945d90fbbc67f44

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Add missing kubelet godoc

Adds some missing godoc to Kubelet, which I found while triaging a bug.

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controller: a couple of fixes for csr

Fixes:
* delete resource handler wasn't taking into account tombstones
* csr would requeue twice on update failure

@deads2k @mikedanese ptal

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add GenericAPIServer posthooks for initialization

Adds the concept of a `PostStartHook` to the `GenericAPIServer` to allow post-server start hooks.  This gives a standard location to perform post-start bootstrapping tasks.  The common case usage we have downstream are security related bootstrapping tasks that are performed on the "empty etcd" initialization cases.  The RBAC authorizer is a good example of this in kube.  It needs a location to create default policies to start a server which is capable of being accessed.

Kube is also likely to hit this for things like PSP and breaking the monolithic controller user into separate, scoped service accounts.

@kubernetes/sig-api-machinery for the `GenericAPIServer` bits
@kubernetes/sig-auth for the particular clusterrole bootstrapping. I've only done one to start, but I suspect we'll start making more and probably introduce a binding so that the RBAC super-user doesn't remain a special case forever.

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Limit the number of names per image reported in the node status

This fixes #32908

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re-enable dynamic provisioning test on gke

fixes https://github.com/kubernetes/kubernetes/issues/32377

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CRI: Add missing sandbox in runningPod.

Add a container that represents pod sandbox when converting the
pod status to runningPod.

Without the change, `kubeGenericRuntimeManager.killPodWithSyncResult()` will not kill any sandboxes.

cc @feiskyer @Random-Liu @yujuhong

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Make container exec failures in e2e easier to debug

Makes container exec failures in e2e tests easier to debug.  Found while chasing some SELinux bugs :)

@pwittrock I'm adding this to the 1.4 milestone because it makes e2e failures easier to debug.

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Wrong cron job date in scheduledjob.md

It seems we wrote a wrong date? 

`"0 14 21 7 *"` is July 21.

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etcd watcher: centralize error handling

We should centralize error handling in watcher in run(). Otherwise this could silently return.

Also we don't need the grpc code checking anymore. It's fixed.

Append containers that represent pod sandboxes when converting the
pod status to runningPod.

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fix a spell mistake

**What this PR does / why we need it**:
fixed a spell mistake

**Which issue this PR fixes** :

**Special notes for your reviewer**:

**Release note**:
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Increase schedulingTimeout due to flakiness even at 5m.

Hope to fix #32668 and #32644 and #32639.

Added more things from the list here:
https://github.com/kubernetes/kubernetes/blob/master/pkg/kubectl/cmd/cmd.go#L159

Update the devel/kubectl-conventions.md with the rules mentioned by
a few folks on which resources could be added to the special 'all' alias

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Check init containers in PodContainerRunning

Sometimes when an init container runs and terminates quickly, PodContainerRunning can go into a
state where the pod indicates it's still running, but the container is already terminated. Handle
that condition by returning ErrContainerTerminated when it happens.

See also #29952

@smarterclayton @fabianofranz

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Hack local-up-cluster should enforce cpu limits by default

CPU CFS quota should be enforced by default.

/cc @vishh

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Support Quobyte as StorageClass

This PR allows Users to use Quobyte as StorageClass for dynamic volume provisioning and implements the Provisioner/Deleter Interface. 

@quolix @kubernetes/sig-storage @rootfs

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Support for storage class for vSphere volume plugin. Custom disk format for dynamic provisioning.

This PR does following,

1.  Add support for storage class for vSphere volume plugin.
2. Add option for user to provision disk with different disk formats. Format choices are
    "thin" (default), "zeroedthick", "eagerzeroedthick".

Sample storageclass (yaml):
```
kind: StorageClass
apiVersion: storage.k8s.io/v1beta1
metadata:
  name: slow
provisioner: kubernetes.io/vsphere-volume
parameters:
  diskformat: thin
```

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Implemented KUBE_DELETE_NODES flag in kube-down.

Implemented KUBE_DELETE_NODES flag in kube-down script.
It prevents removal of nodes when shutting down a HA master replica.

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api: types: document NodeSpec ID fields

Document MachineID as the preferred field from the discussion here:
https://groups.google.com/d/msg/kubernetes-sig-node/_3mXXB1ohZs/EuYtCzHvBgAJ

I couldn't get the generated things to update. I ran:

```
hack/update-generated-runtime.sh
hack/update-codegen.sh
hack/update-generated-swagger-docs.sh
hack/update-generated-protobuf.sh
hack/update-codecgen.sh
```

What did I miss?!

cc @dchen1107 @thockin