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Fix potential problem when scaling --replicas=0

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

We have defensive code for checking if newRS != nil for
DeploymentProgressing and DeploymentTimedOut but not for
DeploymentComplete. Let's add the check here as well as
this problem was seen in the wild.

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

Fixes #53613 

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Move initializer plugin to the generic apiserver

* Moves `k8s.io/kuberentes/plugin/pkg/admission/initialization` to `k8s.io/apiserver/pkg/admission/plugin/initialization`
* Moves `k8s.io/kubernetes/pkg/kubeapiserver/admission/configuration` to `k8s.io/apiserver/pkg/admission/configuration`
* The initializer plugin used to depend on `k8s.io/kubernetes` because it does a type assertion of `api.Pod`. It tries to skip mirror pod. I converted that code to use the generic accessor pattern.

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code-generator: fix flag check in generate-internal-groups.sh

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apimachinery: remove ObjectCopier interface(s)

The big commit is a mechanical, transitive removal of the copier interfaces in all structs and function calls.

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fix generate-groups.sh

This script should run when user pass arguements like this:
```
generate-groups.sh  deepcopy "k8s.io/coredump-detector/" "k8s.io/coredump-detector/apis/" "coredump:v1alpha1"
```
/assign @sttts 

**Release note**:
```
NONE
```

Merge pull request #52987 from mattjmcnaughton/mattjmcnaughton/make-unnecessarily-public-functions-private-in-podautoscaler

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Make unnecessary hpa public funcs private

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

Previously
`pkg.controller.podautoscaler.UnsafeConvertToVersion` was
exported. However, it was never used outside of the `podautoscaler`
package. Make it private to prevent confusion.

Additionally, move the two private functions in `horizontal.go` to be
with the other private functions at the bottom of the file - imho its
more readable than having them directly at the top of the file, before
the public type and function definitions.

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

Previously
`pkg.controller.podautoscaler.UnsafeConvertToVersion` was
exported. However, it was never used outside of the `podautoscaler`
package. Make it private to prevent confusion.

Additionally, move the two private functions in `horizontal.go` to be
with the other private functions at the bottom of the file - imho its
more readable than having them directly at the top of the file, before
the public type and function definitions.

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cleaning tests from deprecated usecases due to unsupported version

**What this PR does / why we need it**: this part of the #52356 effort

**Which issue this PR fixes**: 

**Special notes for your reviewer**:

**Release note**:

```release-note
None
```

This script should run when user pass arguements like this:
generate-groups.sh  deepcopy "k8s.io/coredump-detector/" "k8s.io/coredump-detector/apis/" "coredump:v1alpha1"

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amend about kubectl create secret of changelog

**What this PR does / why we need it**:
kubectl create secret has a new option --from-env-file that populates a configmap from file which follows a key=val format for each line.
maybe copy the above line ,need change the configmap to secret,thanks!
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Retry when checking  Azure storage account readiness

**What this PR does / why we need it**: When the Azure cloud provider ensures that a default storage container exists, if the storage account exists but is still provisioning, it exits without retrying.  This is a bug as the code is wrapped in a backoff policy but never signals the policy to retry.  This PR fixes this behaviour by returning values which allow the backoff policy to operate.

**Which issue this PR fixes**: fixes #53052

**Special notes for your reviewer**: Not sure how to test this - I have done a deployment using acs-engine and it seems to work but I am not sure of the best way to exercise the failure path.

**Release note**:

```release-note
NONE
```

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Return an error if metric cannot be registered

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

`prometheus.MustRegister` panics if a metric cannot be registered. This PR replaces it with `prometheus.Register`, as it does not panic, and returns the error if the metric cannot be registered.

I also adds lacking tests for `RegisterMetricAndTrackRateLimiterUsage`.

**Which issue this PR fixes**:

Fixes #52872

**Special notes for your reviewer**:

None of the `metrics.RegisterMetricAndTrackRateLimiterUsage` invocations check the returned error, so I plan to submit new PRs to address this.

**Release note**:

```release-note
NONE
```
/sig instrumentation

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revamp replicaset integration tests

**What this PR does / why we need it**:
This PR revamps existing replicaset integration tests. Some unit tests have been converted to integration tests.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #51484

**Release note**:

```release-note
NONE
```

**TODO List**:
- [x] add an integration test to verify scale endpoint works
- [ ] convert testReplicaSetConditionCheck() to integration test, and modify the test as replicaset's condition has been removed
- [ ] ~~HPA-related replicaset integration test (may be better suited under HPA integration tests)~~
- [x] verify all tests from "Suggested unit tests to retain" list of the internal doc will not be converted to integration tests, or convert the tests accordingly
- [ ] ~~refactor sync call tree (refer deployment and daemonset PRs)~~
- [x] further improve written integration tests (revise test strategies, remove redundant GET / UPDATE calls, add more relevant sub-tests)
- [x] remove unit tests that have overlapping testing goals with written integration tests

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Don't skip mounts if we can't find the volume

**What this PR does / why we need it**:
Return an error instead of skipping the volume while constructing the list of volume mounts for the container runtime.  This prevents the scenario of a container writing data to an ephemeral volume when it expects the volume to be persistent.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #53421

**Release note**:

NONE

@kubernetes/sig-storage-pr-reviews

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[GCE] Bump GLBC to 0.9.7

Updating GLBC to the latest version

```release-note
GCE: Bump GLBC version to [0.9.7](https://github.com/kubernetes/ingress/releases/tag/0.9.7).
```

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revamp replicaset e2e tests

**What this PR does / why we need it**:
This PR removes some replicaset e2e tests as they will be converted to integration tests:
(1) condition check test
(2) pod adoption test
(3) pod release(orphaning) test

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: xref #52118

**Release note**:

```release-note
NONE
```

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Fix a bad cut/paste of a node label.

Fixes concerns [raised](https://github.com/kubernetes/kubernetes/pull/53146#pullrequestreview-66541495) in #53146

@mikedanese @jdumars

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fix annoying leader election typo

Small typo that annoyed me. It expected `configmaps`

We have defensive code for checking if newRS != nil for
DeploymentProgressing and DeploymentTimedOut but not for
DeploymentComplete. Let's add the check here as well as
this problem was seen in the wild.

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query --incompatible_comprehension_variables_do_not_leak=false

Also set this flag for `bazel query`

See #52677

```release-note
NONE
```

/assign ixdy

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Do not set auto-detect cloud provider as the default in kubelet

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

This is part of the move to external cloud providers. Please see
plan detail in issue 50986. This PR covers step 2:
 v1.9 - set no cloud provider as the default in kubelet but still allow
 opt in for auto-detect

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
Fixes: https://github.com/kubernetes/kubernetes/issues/50986

**Special notes for your reviewer**:

**Release note**:

```release-note
kubelet's `--cloud-provider` flag no longer defaults to "auto-detect".  If you want cloud-provider support in kubelet, you must set a specific cloud-provider explicitly.
```

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Return err when delete volume failed

Return err when delete volume failed

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

/kind bug
/sig openstack

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In DevicePluginHandlerImpl.Allocate(), skips untracked extended resou…

…rces.

Otherwise, we would fail a Pod allocation request that has an extended
resource not managed by any device plugin.



**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 #
https://github.com/kubernetes/kubernetes/issues/53548

**Special notes for your reviewer**:

**Release note**:

```release-note
Ignore extended resources that are not registered with kubelet
```

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Use const instead of hard code for volume plugin

**What this PR does / why we need it**:
nits: cleanup hard-coded volume plugin name

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

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

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Refactor network policy e2e tests, and add additional logging when tests fail

**What this PR does / why we need it**:
- Restructure tests, clean up duplicate code
- Add additional logging, so it's easier to debug when the tests fail
- Add retry on the client side pods because sometimes kubelet will start the pod when the network is not ready, resulting in flaky tests
- Add readiness probe for the server pods to further reduce the flakiness.

Current failure messages when a test fails:
```
checking client-can-connect could communicate with server.
  Expected error:
      <*errors.errorString | 0xc420868820>: {
          s: "pod \"client-can-connect\" failed with status: {Phase:Failed Conditions:[{Type:Initialized Status:True LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:48 -0700 PDT Reason: Message:} {Type:Ready Status:False LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:57 -0700 PDT Reason:ContainersNotReady Message:containers with unready status: [client-can-connect-container]} {Type:PodScheduled Status:True LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:48 -0700 PDT Reason: Message:}] Message: Reason: HostIP:10.138.0.2 PodIP:10.60.1.180 StartTime:2017-07-25 15:54:48 -0700 PDT InitContainerStatuses:[] ContainerStatuses:[{Name:client-can-connect-container State:{Waiting:nil Running:nil Terminated:&ContainerStateTerminated{ExitCode:1,Signal:0,Reason:Error,Message:,StartedAt:2017-07-25 15:54:49 -0700 PDT,FinishedAt:2017-07-25 15:54:57 -0700 PDT,ContainerID:docker://c91c33139672c20a5231bcba9437d74e12d35a6d19275b41bb8e571148b4ab57,}} LastTerminationState:{Waiting:nil Running:nil Terminated:nil} Ready:false RestartCount:0 Image:gcr.io/google_containers/redis:e2e ImageID:docker://sha256:e5e67996c442f903cda78dd983ea6e94bb4e542950fd2eba666b44cbd303df42 ContainerID:docker://c91c33139672c20a5231bcba9437d74e12d35a6d19275b41bb8e571148b4ab57}] QOSClass:BestEffort}",
      }
      pod "client-can-connect" failed with status: {Phase:Failed Conditions:[{Type:Initialized Status:True LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:48 -0700 PDT Reason: Message:} {Type:Ready Status:False LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:57 -0700 PDT Reason:ContainersNotReady Message:containers with unready status: [client-can-connect-container]} {Type:PodScheduled Status:True LastProbeTime:0001-01-01 00:00:00 +0000 UTC LastTransitionTime:2017-07-25 15:54:48 -0700 PDT Reason: Message:}] Message: Reason: HostIP:10.138.0.2 PodIP:10.60.1.180 StartTime:2017-07-25 15:54:48 -0700 PDT InitContainerStatuses:[] ContainerStatuses:[{Name:client-can-connect-container State:{Waiting:nil Running:nil Terminated:&ContainerStateTerminated{ExitCode:1,Signal:0,Reason:Error,Message:,StartedAt:2017-07-25 15:54:49 -0700 PDT,FinishedAt:2017-07-25 15:54:57 -0700 PDT,ContainerID:docker://c91c33139672c20a5231bcba9437d74e12d35a6d19275b41bb8e571148b4ab57,}} LastTerminationState:{Waiting:nil Running:nil Terminated:nil} Ready:false RestartCount:0 Image:gcr.io/google_containers/redis:e2e ImageID:docker://sha256:e5e67996c442f903cda78dd983ea6e94bb4e542950fd2eba666b44cbd303df42 ContainerID:docker://c91c33139672c20a5231bcba9437d74e12d35a6d19275b41bb8e571148b4ab57}] QOSClass:BestEffort}
  not to have occurred
```

Failure message with this PR:
```
 should support a 'default-deny' policy [Feature:NetworkPolicy] [It]
    /Users/gunjan/go/src/k8s.io/kubernetes/_output/local/go/src/k8s.io/kubernetes/test/e2e/network/network_policy.go:81

    Jul 25 14:35:55.978: Pod client-cannot-connect should be able to connect to service svc-server, but was not able to connect.
    Pod logs:
    Connecting to svc-server.e2e-tests-network-policy-tbzm8:80 (10.63.254.124:80)
    wget: download timed out
    Connecting to svc-server.e2e-tests-network-policy-tbzm8:80 (10.63.254.124:80)
    wget: download timed out
    Connecting to svc-server.e2e-tests-network-policy-tbzm8:80 (10.63.254.124:80)
    wget: download timed out
    Connecting to svc-server.e2e-tests-network-policy-tbzm8:80 (10.63.254.124:80)
    wget: download timed out
    Connecting to svc-server.e2e-tests-network-policy-tbzm8:80 (10.63.254.124:80)
    wget: download timed out


   Current NetworkPolicies:
    	[{{ } {deny-all  e2e-tests-network-policy-tbzm8 /apis/networking.k8s.io/v1/namespaces/e2e-tests-network-policy-tbzm8/networkpolicies/deny-all 20fa92ab-7181-11e7-855b-42010a8a0003 87694 1 2017-07-25 14:35:07 -0700 PDT <nil> <nil> map[] map[] [] nil [] } {{map[] []} []}}]

   Pods:
    	[Pod: server, Status: &PodStatus{Phase:Running,Conditions:[{Initialized True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:34:52 -0700 PDT  } {Ready True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:35:00 -0700 PDT  } {PodScheduled True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:34:52 -0700 PDT  }],Message:,Reason:,HostIP:10.138.0.2,PodIP:10.60.1.145,StartTime:2017-07-25 14:34:52 -0700 PDT,ContainerStatuses:[{server-container-80 {nil ContainerStateRunning{StartedAt:2017-07-25 14:34:53 -0700 PDT,} nil} {nil nil nil} true 0 gcr.io/google_containers/porter:4524579c docker://sha256:711ccbc1c74f3417f2a0f403c194017b3bde09eec3c3b42dc9c838db3894c223 docker://3fa73da57380ef28520f8bbf53b3540f523ab76d45a1b42cc9a1e4573eb45639}],QOSClass:BestEffort,InitContainerStatuses:[],}
     Pod: server, Status: &PodStatus{Phase:Running,Conditions:[{Initialized True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:34:52 -0700 PDT  } {Ready True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:35:00 -0700 PDT  } {PodScheduled True 0001-01-01 00:00:00 +0000 UTC 2017-07-25 14:34:52 -0700 PDT  }],Message:,Reason:,HostIP:10.138.0.2,PodIP:10.60.1.145,StartTime:2017-07-25 14:34:52 -0700 PDT,ContainerStatuses:[{server-container-80 {nil ContainerStateRunning{StartedAt:2017-07-25 14:34:53 -0700 PDT,} nil} {nil nil nil} true 0 gcr.io/google_containers/porter:4524579c docker://sha256:711ccbc1c74f3417f2a0f403c194017b3bde09eec3c3b42dc9c838db3894c223 docker://3fa73da57380ef28520f8bbf53b3540f523ab76d45a1b42cc9a1e4573eb45639}],QOSClass:BestEffort,InitContainerStatuses:[],}
    ]
```
**Release note**:

```release-note
NONE
```

Automatic merge from submit-queue (batch tested with PRs 53567, 53197, 52944, 49593). 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>.

Clean up in `cluster_size_autoscaling.go`

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

Fix `golint` errors.

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

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[OpenStack]Add codes to check the count of nodes(members)

After merging this PR(#53146), if there is no available nodes for
the loadbalancer service, UpdateLoadBalancer() will run panic.

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

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Address code-gen issue 7 nil pointer when incorrect pkg name

**What this PR does / why we need it**:
When using the code-gen tool, if the comments in the ```doc.go``` file has a misspelled pkg name, it ends with a nil pointer. This can be difficult to debug. This PR fixes that by logging an error and continuing. 
https://github.com/kubernetes/code-generator/issues/7

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

**Special notes for your reviewer**:
I was not sure whether just exiting here would be correct behaviour as reading the code , I noticed in other places it continues if the pkg is nil.
Also perhaps I should use the ```glog.V(5).info```  ?

```release-note
`NONE`
```

move k8s.io/kubernetes/plugin/pkg/admission/initialization to
k8s.io/apiserver/pkg/admission/plugin/initialization/initialization.go;
move k8s.io/kubernetes/pkg/kubeapiserver/admission/configuration to
k8s.io/apiserver/pkg/admission/configuration.

Also set this flag for `bazel query`

See #52677

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apiextensions: add round trip tests for CRD schema conversion

Follow up test for https://github.com/kubernetes/kubernetes/pull/52281.

Need to update go-openapi to get this - https://github.com/go-openapi/spec/pull/31 - in.

**Special notes for your reviewer**: The tests won't pass until https://github.com/kubernetes/kubernetes/pull/52281 is merged.

**Release note**:

```release-note
NONE
```

/cc @sttts

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add possibility to ignore volume label in dynamic provisioning

**What this PR does / why we need it**: this is needed if openstack cinder zone name does not match to compute zone names. For instance if there is only one cinder zone and many compute zones.

**Which issue this PR fixes**: fixes #53488

**Special notes for your reviewer**: 

```release-note
NONE
```

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Improve `horizontal.go` documentation

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

Resolve the remaining `golint` errors in the
`pkg/controller/podautoscaler` package by improving the documentation
in `horizontal.go`. Now all public methods have comments.

**Special notes for your reviewer**:
Re discussions in [this pr](https://github.com/kubernetes/kubernetes/pull/52238).

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

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Add launching Cluster Autoscaler in Kubemark

**What this PR does / why we need it**:
Allows to launch Cluster Autoscaler in Kubemark. 
To do it, set ENABLE_KUBEMARK_CLUSTER_AUTOSCALER flag to true. This currently only works with one nodegroup, for which you can specify minimum and maximum number of nodes and name. (KUBEMARK_AUTOSCALER_MIN_NODES, KUBEMARK_AUTOSCALER_MAX_NODES, KUBEMARK_AUTOSCALER_MIG_NAME).
Is is important to note that NUM_NODES has a different meaning when launching Cluster Autoscaler - we always start with only one node, but NUM_NODES is used to calculate the size of Kubemark master and addon components.

There are no changes to the current setup if ENABLE_KUBEMARK_CLUSTER_AUTOSCALER is set to false.

**Release note**:
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NONE
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