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Fix `kubeadm upgrade` error while CoreDNS is installed

**What this PR does / why we need it**:
In the scenario when I have CoreDNS installed via `kubeadm init` and I want to continue using CoreDNS after `kubeadm upgrade`, the upgrade is unsuccessful and it gives an error.

**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 kubernetes/kubeadm#641

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Containerized kubelet is no longer experimental

Blocked by https://github.com/kubernetes/kubernetes/pull/56250

Given the node e2e Conformance tests over containerized ``Kubelet`` are already running and are published at https://k8s-testgrid.appspot.com/sig-node-kubelet#kubelet-containerized-conformance-aws-e2e-rhel, we can remove all mentions of the "experimental" keyword.

Are there any other place where the "containerized Kubelet" is mentioned as experimental?
  
```release-note
NONE
```

ignore 404 error

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kube-aggregator APIServiceRegistrationController remove watch services 

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

>Currently APIServiceRegistrationController watch service change and find the related APIServices related if any. Then it AddAPIService/RemoveAPIService for APIAggregator.

>I dig into the kube-aggregator and find it no need totally, because AvailableConditionController update
APIServices status when related service or endpoint change. So if APIServiceRegistrationController does not watch services, it will not miss any event for APIServices.

**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 #57836

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Add CustomResourceValidation example in sample-controller

Add `CustomResourceValidation` example in sample-controller.

Addresses the following part of https://github.com/kubernetes/sample-controller/issues/2:

> CRDs support json-schema schemas. These CRDs don't have them. It would be nice to show how to add them

**Release note**:

```release-note
NONE
```

/assign sttts munnerz

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Fix errors in Heapster deployment for google sink

**What this PR does / why we need it**:
Fixes a bug in Heapster deployment for google sink.

**Release note**:
```release-note
Fixes a bug in Heapster deployment for google sink.
```

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Enable list option modification when create list watch

**What this PR does / why we need it**:
metav1.ListOptions support both field selector and label selector, but the current NewListWatchFromClient in client-go only support field selector.
 It would be helpful to use label selector in 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)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
None
```

- Mention the schema in the example CRD.
- Update README and mention about feature gates.

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Do not set BaseURI twice

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

Do not set BaseURI again. BaseURI has been set by NewAccountsClientWithBaseURI and NewDisksClientWithBaseURI method.

**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 #57951

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

/assign @karataliu

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Fix Typo in apiserver README

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Simplify the sorting codes

**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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forbid unnamed context

**What this PR does / why we need it**:
forbid unnamed contexts with validation

**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 #56747

**Special notes for your reviewer**:
/assign @sttts @fabianofranz 

**Release note**:

```release-note
forbid unnamed context
```

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Allow integration test timeout override.

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

This allows the test timeout to be overridden at the command line for
integration tests. The default behavior is unchanged.

e.g.
```
make test-integration WHAT="./test/integration/scheduler" KUBE_TEST_ARGS="-run=. -count=10" KUBE_TIMEOUT="-timeout=1h"
```



**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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Fix the wrong code comment

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

Fix the wrong code comment


**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #55608


**Release note**:

```release-note
NONE
```

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Version bump to etcd v3.2.13, grpc v1.7.5

Reapply https://github.com/kubernetes/kubernetes/pull/57160 but with etcd 3.2.13, which includes https://github.com/coreos/etcd/pull/9047 to fix https://github.com/kubernetes/kubernetes/issues/51099.

We need to scalability test this PR before merging it since the previous attempt to version bump to grpc v1.7+ resulted in a scalability test failure after the PR was merged to master, and we don't want to repeat that. No, no we don't.

Thanks @gyuho for fixing the etcd grpc issue and releasing etcd-3.2.13 on short notice.

**Release note**:

```release-note
Upgrade to etcd client 3.2.13 and grpc 1.7.5 to improve HA etcd cluster stability.
```

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Adding myself as a reviewer to aws credentialprovider

/assign @justinsb 
/release-note-none

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Fix typo in comment

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tiny fix

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

Fix a wrong method name in comments.

**Release note**:

```release-note
NONE
```

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Fix e2e-node test panic
Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>



**What this PR does / why we need it**:
Execute e2e-node test locally like:
```bash
# make test-e2e-node FOCUS="should assign CPUs as expected based on the Pod spec" SKIP=""
```
received a panic see #57889
This pr fixes the panic.

**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 #57889

**Special notes for your reviewer**:

**Release note**:

```release-note
none
```

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Move scheduler out of plugin directory

**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)*:
This is but one step toward resolving the referenced issue.
/ref #57579

**Special notes for your reviewer**:

**Release note**:

```release-note
Default scheduler code is moved out of the plugin directory.
plugin/pkg/scheduler -> pkg/scheduler
plugin/cmd/kube-scheduler -> cmd/kube-scheduler
```
/sig scheduling

Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>

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Updated a typo for ipvs document.

**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
```

/sig network

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Bump metadata proxy and test versions

**What this PR does / why we need it**: Bump metadata proxy version to v0.1.7 (to pick up https://github.com/GoogleCloudPlatform/k8s-metadata-proxy/pull/13).

**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
Bump metadata proxy version to v0.1.7 to pick up security fix.
```

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add "Not Found" error for ipset set & entry delete

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

Add "not found error" for ipset set and entry delete. For example,

```
[root@SHA1000130405 k8s-yml]# ipset list
Name: KUBE-LOOP-BACK
Type: hash:ip,port,ip
Revision: 2
Header: family inet hashsize 1024 maxelem 65536
Size in memory: 16776
References: 1
Members:
172.17.0.2,udp:53,172.17.0.2
172.17.0.2,tcp:53,172.17.0.2
100.106.89.164,tcp:6443,100.106.89.164

[root@SHA1000130405 k8s-yml]# ipset delete foo
ipset v6.19: The set with the given name does not exist

[root@SHA1000130405 k8s-yml]# ipset del KUBE-LOOP-BACK 1.2.3.4,tcp:80,1.2.3.4
ipset v6.19: Syntax error: Third element is missing from 1.2.3.4,tcp:80,1.2.3.4.
```
Just need to filter the error message "does not exist" or "element is missing". We should ignore these error when try to make sure they are deleted.

**Which issue(s) this PR fixes**:
Fixes #57318

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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HugePages feature is beta in 1.10 release

**What this PR does / why we need it**:
Graduate support of HugePages to beta.

**Which issue(s) this PR fixes**
Fixes #53672

**Special notes for your reviewer**:

```release-note
HugePages feature is beta
```

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cluster/gce/gci: Support passing kube-scheduler policy config

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

This allows us to specify a customized scheduler policy configuration.

**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**:

I'm aware of the ConfigMap but passing a file is much simpler in our case.

This PR is low risk, we will want to cherry pick this into 1.9.

**Release note**:

```release-note
None
```

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Fix local e2e test with changed error message

**What this PR does / why we need it**:
Node affinity error message got changed as part of log message refactoring.  Updating e2e test.

**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 #57662

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Remove dependency on v1 API in base credential provider

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Ensure Azure LB removable when VMSS is enabled

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

When VMSS enabled, Azure LB not removed after all LoadBalancer services deleted.

**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 #57826

**Special notes for your reviewer**:

This PR upgrades Azure GO SDK to latest release and adds a workaround to fix the problem.

**Release note**:

```release-note
NONE
```