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Never let cluster-scoped resources skip webhooks

Fix #57964

This allows user write webhooks for cluster-scoped custom resources.

We still need to figure out how to selectively exempt cluster-scoped resources from webhooks to avoid bootstrapping deadlocks. For now, if a deadlock occurs, users can work around by first deleting the webhook configuration, then rebooting the webhook, then re-enabling the webhook configuration.

```release-note
Bug fix: webhooks now do not skip cluster-scoped resources

Action required: Before upgrading your Kubernetes clusters, double check if you had configured webhooks for cluster-scoped objects (e.g., nodes, persistentVolume), these webhooks will start to take effect. Delete/modify the configs if that's not desirable.
```

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fix neg e2e test

```release-note
NONE
```

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Don't bind PVs and PVCs with different access modes.

PVC pre-bound to a PV can bind to the PV only if it has correct access mode. Report an event if it does not and keep the PVC Pending.

++ minor refactoring of `syncClaim`, `isMisMatch` was declared too far away from place when it's used.

/sig storage
/assign @gnufied @rootfs 

```release-note
None
```

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[GCE cloud provider] Ensure hosts are updated in EnsureLoadBalancer()

**What this PR does / why we need it**:
From https://github.com/kubernetes/kubernetes/issues/56527, the `EnsureLoadBalancer()` implementation in GCE external LB doesn't always update the hosts (nodes). This PR makes it to do so.

Previously, the only situation where `ensureExternalLoadBalancer()` will not update hosts is when hosts are updated but there is no other changes that trigger target pool update (for which we delete&recreate target pool and hence updates the hosts). So the main change here is detecting that condition and call `updateTargetPool()`.

**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 #56527

**Special notes for your reviewer**:
Turned out it could be a small change, so I gave it a try.
/assign @nicksardo @bowei 

**Release note**:

```release-note
NONE
```

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Fix bug in dockerized benchmarking script

Ref https://github.com/kubernetes/test-infra/issues/6392#issuecomment-360241294

/cc @krzyzacy
/assign @gmarek  

```release-note
NONE
```

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Add some more azure unit tests.

moar coverage!

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Add vSphere Cloud Provider vclib tests

**What this PR does / why we need it**:
Additional vSphere Cloud Provider functional tests against vcsim, providing more test coverage without having to run against a real vCenter instance.

Follow up to #55918

**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**:

This set of tests focuses on Datastore, Folder and VirtualMachine types.  A couple of TODOs depend on changes to vcsim, I will follow up on those.

**Release note**:

```release-note
NONE
```

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PSP: improve parsing and validation of SELinux levels

**What this PR does / why we need it**:
At this moment, when we're comparing SELinux levels of PSP and container, we compare them as strings. We don't take into account that categories in a level may be specified in a different order (for example, `s0:c0,c6` is the same as `s0:c6,c0`).

This PR improves handling of SELinux levels by doing logical comparison.

**Special notes for your reviewer**:
Here is the issue in OpenShift tracker from @pweil-: https://github.com/openshift/origin/issues/15627
Relate PR to fixing this in OpenShift: https://github.com/openshift/origin/pull/16432

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

PTAL @pweil- 
CC @simo5

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serviceaccount: move service account token functionality to go-jose

This is a non-functional change that makes some of my later work easier.

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gce: bump version of addon manager

to pick up https://github.com/kubernetes/kubernetes/pull/58386

```release-note
NONE
```

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Ensure config has been created before attempting to launch ingress.

**What this PR does / why we need it**: Ensure config has been created before attempting to launch ingress.

**Release note**:
```release-note
Ensure config has been created before attempting to launch ingress.
```

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By default block service proxy to external IP addresses.

**What this PR does / why we need it**:
Currently, the Service Proxy on the APIServer allows unrestricted access to any IP address that the APIServer machine can reach. This is likely undesirable in many cases.

Update the service proxy so that it filters Endpoints to only those that have a TargetRef that matches a known Pod.

Fixes https://github.com/kubernetes/kubernetes/issues/58761

**Release note**:
```release-note
By default disable access to external IP addresses from the apiserver service proxy.
```

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Update release note links for 1.10

**What this PR does / why we need it**:
Adds link to 1.10 release notes to CHANGELOG.md

**Release note**:

```release-note
NONE
```

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Add a container type to the runtime manager's container status

**What this PR does / why we need it**:
This is Step 1 of the "Debug Containers" feature proposed in #35584 and is hidden behind a feature gate. Debug containers exist as container status with no associated spec, so this new runtime label allows the kubelet to treat containers differently without relying on spec.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: cc #27140

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

**Integrating feedback**:
- [x] Remove Type field in favor of a help method

**Dependencies:**
- [x] #46261 Feature gate for Debug Containers

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fix generator_for_scheme: remove blank new line

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

1. remove new blank line in `AddToScheme`
https://github.com/kubernetes/kubernetes/blob/80e344644e2b6222296f2f03551a8d0273c7cbce/pkg/client/clientset_generated/internalclientset/fake/register.go#L81-L83

2. remove new blank line in `Install`
https://github.com/kubernetes/kubernetes/blob/3d69cea1e589add1d24fc72e9a8c46081664a719/staging/src/k8s.io/kube-aggregator/pkg/client/clientset_generated/internalclientset/scheme/register.go#L44-L47


**Special notes for your reviewer**:

the first commit changes the code generator for schema register.
https://github.com/kubernetes/kubernetes/commit/c8c9ca77af97381e8d6e0d1592751f6e88ae9780 

**Release note**:

```release-note
NONE
```

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Support out-of-tree / external cloud providers

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

Currently kubeadm fails in preflight check. We should allow external cloud providers
```
[preflight] Starting the kubelet service
cloudprovider: Invalid value: "external": cloudprovider not supported
```

**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
Added support for external cloud providers in kubeadm
```

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Add deprecation warnings for rktnetes flags

**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 #53601

**Special notes for your reviewer**:

**Release note**:
```release-note
rktnetes has been deprecated in favor of rktlet. Please see https://github.com/kubernetes-incubator/rktlet for more information.
```

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Create benchmark results file before writing to it

To see if it helps with https://github.com/kubernetes/test-infra/issues/6392#issuecomment-360127048

/cc @gmarek

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Fix master regex when running multiple clusters

**What this PR does / why we need it**:
I'm running two Kubernetes clusters on GCE. One for production and one for staging. The instance prefix I use for production is `kubernetes` and for staging it's `staging-kubernetes`. This caused a problem when running `kube-up.sh` for production because when it tries to find all instances which match `kubernetes(-...)?` it finds both the production and staging instances. This probably results in multiple problems, but the most noticeable one for me was that `INITIAL_ETCD_CLUSTER` was incorrect and so etcd wouldn't start up correctly so the api server doesn't start up correctly so nothing else starts up. I tested this manually and it seems to work for me, but I didn't write an automated 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 #

**Special notes for your reviewer**:

**Release note**:

```release-note
Fixes bug finding master replicas in GCE when running multiple Kubernetes clusters
```

PVC pre-bound to a PV can bind to the PV only if it has correct access mode.
Report an event if it does not and keep the PVC Pending.

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process pvc watch deletion event miss in expand-controller

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

volume expand controller should also process exception case when watch deletion event missed as most controllers do.

**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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Update cluster addon Calico to v2.6.6

**What this PR does / why we need it**:
Updates the cluster addon Calico to the 2.6.6 release (in preparation for upgrade to v3.0).
This also switches to pull the images from gcr.io.

**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**:
@caseydavenport

**Release note**:
Should there be a release note for this? WDYT?
```release-note
NONE
```

Service proxy uses redirects to Pods instead of direct access.

also extract custom validation to seperate function

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promote aggregation API to v1

Finishing https://github.com/kubernetes/features/issues/263 as discussed in apimachinery

The API has been available since 1.6 and beta since 1.7.  Openshift has been using it for about a year and service catalog (@pmorie) and metrics server (@piosz @DirectXMan12) have both been using too.  The feature and the API have both been stable over that time.

@kubernetes/sig-api-machinery-api-reviews @kubernetes/api-approvers 

/assign lavalamp
/assign smarterclayton


```release-note
Promoting the apiregistration.k8s.io (aggregation) to GA
```

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Optionally launch build containers inside a specific parent cgroup

**What this PR does / why we need it**: Adds support to the build process for launching containers inside a specific parent cgroup via the `--cgroup-parent` docker arg. We needed this to enforce resource usage when building Kubernetes in our CI environment.

**Special notes for your reviewer**: None

**Release note**:

```release-note
NONE
```

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Add better event handling for deleted Pods

**What this PR does / why we need it**:
We have observed cases where scheduler cache has not been updated after Pod deletions. This PR makes the event handling logic more robust by adding logic to check for `cache.DeletedFinalStateUnknown` in our event handler filters.

**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
Stability: Make Pod delete event handling of scheduler more robust.
```

/sig scheduling

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Adding network spaces support for kubeapi-load-balancer.

**What this PR does / why we need it**:
Adding support for juju network spaces to kubeapi-load-balancer charm
**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 #
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/406
**Special notes for your reviewer**:

**Release note**:

```release-note
Added support for network spaces in the kubeapi-load-balancer charm
```