Automatic merge from submit-queue (batch tested with PRs 45313, 46051)

Change all the existing admission init blocks to call a Register function

**What this PR does / why we need it**:
this is a two stage refactor when done there will be no init block in admission plugins.
Instead all plugins expose Register function which accept admission.Plugins instance.
The registration to global plugin registry happens inside Register function

**Release note**:

```
NONE
```

Automatic merge from submit-queue

GCE for cloud-controller-manager 

**What this PR does / why we need it**:
This implements the `NodeAddressesByProviderID`and `InstanceTypeByProviderID` methods used by the cloud-controller-manager to the GCE provider.


**Release note**:

```release-note
NONE
```

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Redirect kubeadm issues to kubeadm repo

@kubernetes/sig-cluster-lifecycle-misc ptal

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remove unreachable code
Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>


**What this PR does / why we need it**:
remove unreachable code

Signed-off-by: Michail Kargakis <mkargaki@redhat.com>

Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>

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Add node e2e tests for hostNetwork

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

Add node e2e tests for hostNetwork.

**Which issue this PR fixes**

Part of #44118.

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

/assign @Random-Liu @yujuhong

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Copy static variable 'verb' before instrumenting APIserver call to prevent overwriting

Fixes https://github.com/kubernetes/kubernetes/issues/45566

cc @wojtek-t @gmarek

*Add splitProviderID helper function
*Add getInstanceFromProjectInZoneByName function
*Implement gce InstanceTypeByProviderID
*Implement gce NodeAddressesByProviderID

Automatic merge from submit-queue

IPv6 support for hexCIDR()

Includes these changes:
- Modified so that IPv6 CIDRs can be converted correctly.
- Added test cases for IPv6 addresses.
- Split UTs for hexCIDR() and asciiCIDR() so that masking can be tested.
- Add UTs for failure cases.

Note: Some code that calls hexCIDR() builds a CIDR from the pod IP string
and the concatenation of "/32". These should, in the future, use "128",
if/when the pod IP is IPv6. Not addressed as part of this commit.



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

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #45906

**Special notes for your reviewer**:

**Release note**:

```release-noteNONE
```

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Log kubefed operations at log level 4 in our test environments.

This is useful for debugging test failures that involve federation control plane turn up/down.


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

/assign @perotinus @csbell 
/sig federation

cc @kubernetes/sig-federation-pr-reviews

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Initialize cloud providers with a K8s clientBuilder

**What this PR does / why we need it**:
This PR provides each cloud provider the ability to generate kubernetes clients. Either the full access or service account client builder is passed from the controller manager. Cloud providers could need to retrieve information from the cluster that isn't provided through defined interfaces, and this seems more preferable to adding parameters.

Please leave your thoughts/comments.

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

Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)

[Federation] Fix bad logic of deletion error handling for federated updater

Reverts a change accidentally added in #45364.

cc: @kubernetes/sig-federation-pr-reviews

Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)

remove useless flags from hack/verify-flags/known-flags.txt

Flags in known-flags.txt is used to check misspelling from "-" to "_" in
workspace, so a flag with out "-" should not show up in this file.

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)

NodeRestriction admission plugin

Adds an optional `NodeRestriction` admission plugin that limits identifiable kubelets to mutating their own Node object, and Pod objects bound to their node.

This is the admission portion of https://github.com/kubernetes/community/blob/master/contributors/design-proposals/kubelet-authorizer.md and kubernetes/features#279

```release-note
The `NodeRestriction` admission plugin limits the `Node` and `Pod` objects a kubelet can modify. In order to be limited by this admission plugin, kubelets must use credentials in the `system:nodes` group, with a username in the form `system:node:<nodeName>`. Such kubelets will only be allowed to modify their own `Node` API object, and only modify `Pod` API objects that are bound to their node.
```

Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)

add CRD finalizer to remove CRs

Fixes https://github.com/kubernetes/kubernetes/issues/45878

This adds a finalizer for customresourcedefinitions to prevent CRD deletion until all CR instances are gone.

@sdminonne I lost track of your issue, but here's the fix

I'm at a loss for how to test this.  It's tested from the outside by ensuring that a CRD delete removes its instances (integration test) and we could add more integration tests, but for unit tests I can't seem to find a mock `dynamic.ClientPool` and its not easily writeable at the moment.  I'm thinking about saying we just add more black box tests given the options.

Automatic merge from submit-queue (batch tested with PRs 41535, 45985, 45929, 45948, 46056)

kubelet/envvars: Adding brackets to IPv6 addresses
Signed-off-by: André Martins <aanm90@gmail.com>

**What this PR does / why we need it**: This adds IPv6 brackets on environments variables pods

**Special notes for your reviewer**:

Since the IP is a string I think the fastest way to detect if it's an IPv6 was to check for the presence of `:` in it. Let me know what you think.

Automatic merge from submit-queue

Redirect users filing kubectl issues to the kubernetes/kubectl repo

Automatic merge from submit-queue

let client-gen understand vendor

This is extracted from #44784, where we move external api types to k8s.io/api. After the move, the types will locate at vendor/k8s.io/api/xxx. However, gengo index the parsed package using the import path, which is stripped of  the vendor/ prefix, so we'll need to strip the vendor/ prefix as necessary in client-gen.

This PR doesn't produce any change to the generated clientset yet since all types are still in the kubernetes repo.

This is useful for debugging test failures that involve federation
control plane turn up/down.

Automatic merge from submit-queue

Advanced audit logging API

This is an initial implementation of the API proposed in https://github.com/kubernetes/community/blob/master/contributors/design-proposals/auditing.md

This deviates from the exact API specified in the proposal in a number of ways. Here's a list of some of the changes I made, and why:

- General API conformance (`metav1.{Type,List}Meta`, +optional, etc.)
- Dropped fields that won't be part of the initial implementation (storage objects & filters), to be added later
- {Request,Response}Body -> {Request,Response}Object - This is actually what the proposal originally had, and will be much better for adding Filters later, and provides a less protocol-dependent API. Note that there is currently no way to include Response body for non-resource requests.
- Drop HttpMethod - redundant with verb
- Response{StatusCode,ErrorMessage} collapsed into `ResponseStatus *metav1.Status` - This is the standard response type for resourec errors, but can hold genereric error responses too. Note that this is part of the `Metadata` Level.

/cc @kubernetes/sig-auth-api-reviews @kubernetes/api-reviewers

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Same internal and external ip for vSphere Cloud Provider

Currently, vSphere Cloud Provider reports internal ip as container ip addresses. This PR modifies vSphere Cloud Provider to report same ip address as both internal and external that is provided by vmware infrastructure. 
cc @pdhamdhere @tusharnt @BaluDontu @divyenpatel @luomiao

this is a two stage refactor when done there will be no init block in admission plugins.
Instead all plugins expose Register function which accept admission.Plugins instance.
The registration to global plugin registry happens inside Register func.

Automatic merge from submit-queue

Pass pod metadata to flex plugin

Normal volume plugins get the pod spec to pull information from when setting up their volume, but flex plugins do not.

If a flex volume wants to set up things unique to the pod, or limited in permission based on the service account, the pod namespace, name, uid, and service account name are needed.

This PR adds pod uid, name, namespace, and service account name to the options passed to the plugin available during mounting

```release-note
The options passed to a flexvolume plugin's mount command now contains the pod name (`kubernetes.io/pod.name`), namespace (`kubernetes.io/pod.namespace`), uid (`kubernetes.io/pod.uid`), and service account name (`kubernetes.io/serviceAccount.name`).
```

Automatic merge from submit-queue

Add approvers to vsphere cloudprovider

This PR adds approvers for vSphere Cloud provider.
cc @pdhamdhere @tusharnt @BaluDontu @divyenpatel @luomiao

Automatic merge from submit-queue

Use beta GCP API instead of alpha in CloudCIDR controller

The feature we are using has been promoted to beta.

```release-note
NONE
```

Automatic merge from submit-queue

Remove ObjectNameFunc from custom resources

@deads2k as far as I can tell these `ObjectNameFunc`s are unnecessary.
Signed-off-by: Monis Khan <mkhan@redhat.com>

**Release note**:

```
NONE
```

Automatic merge from submit-queue

More owners from SIG-CLI

Adds SIG-CLI as reviewers and approvers of `cmd/clicheck/` and adds me + @pwittrock as approvers in `hack/` (mostly for `test-cmd` and some `hack/verify*.sh` and `hack/update*.sh` scripts).

**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue

Add initializers to ObjectMeta and a new filter on ListOptions

Will support admission extension by allowing controllers to interact with objects before they are visible to the rest of the API.

Part of https://github.com/kubernetes/community/blob/master/contributors/design-proposals/admission_control_extension.md