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rename build/ dirs to other things.

#35359

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Bump kubeadm to use v1.4.4 by default

**Release note**:

```release-note
NONE
```

This reverts commit ee15c80d.

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Amendments to SELinux enhancement proposal

Makes some changes to the proposal from #33951 based on some further research.

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e2e node plumbing and bundling for GCI mounter

**Note:** The code in this PR only bundles the mounter and modifies `--mounter-path` if it can find `cluster/gce/gci/mounter` in the K8s source dir when building the test bundle.

This bundles the mounter script for GCI with the node e2e tests and allows the `--mounter-path` to be passed to the Kubelet via the node test framework. The node test runner will detect when we are running on a remote GCI node and add the appropriate `--mounter-path` to the `testArgs`. 

It also includes a simple node test that mounts a tmpfs volume. This will exercise the Kubelet's mounter code path. 

**ITEM OF NOTE:** To get the k8s root dir (in order to copy the mount script into the tarball), I changed `getK8sRootDir` -> `GetK8sRootDir` in `test/e2e_node/build/build.go`. Based on the comment above that function (and the fact that it was private to begin with), I'm not sure this is the best way to do things:
```
// TODO: Dedup / merge this with comparable utilities in e2e/util.go
```
On the other hand, the `e2e/util.go` file mentioned in that comment doesn't exist anymore. This should be resolved before this PR is merged.

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Clarify backwards and forwards compatibility in docs

We weren't necessarily clear that we consider both required.

@eparis @kubernetes/api-review-team @bgrant0607

This came up during a discussion of changing an API and I thought it was important to clarify.

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CRI: Add cri test on containervm.

As is discussed with @yujuhong, we need to validate cri on containervm.

@yujuhong @feiskyer 
/cc @kubernetes/sig-node

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prevent panic if resourceversion checked early

Found panic while trying to use this in a separate API server.

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CRI: Refactor kuberuntime unit test

Based on https://github.com/kubernetes/kubernetes/pull/34858

This PR:
1) Refactor the fake runtime service and some kuberuntime unit test.
2) Add better garbage collection unit test.
3) Fix init container unit test which isn't testing correctly. Some other unit tests may also need to be fixed.
4) Add pod log directory garbage collection unit test.

@feiskyer @yujuhong 
/cc @kubernetes/sig-node

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Fixing a typo in federated secrets test

Realized that our secret e2e test was not running due to a typo in my last PR :)

cc @kubernetes/sig-cluster-federation

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Update grafana in kubernetes to version 3.1.1

Fix #33775

```release-note
Update grafana version used by default in kubernetes to 3.1.1
```

@piosz

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vSphere Kube-up: resolve vm-names on all nodes.

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**What this PR does / why we need it**:
This addresses the #35364

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes #35364
**Special notes for your reviewer**:
Will cherry pick to release-1.4

```release-note
vSphere Kube-up: resolve vm-names on all nodes
```

fix kubectl e2e test to avoid alpha versions unless needed

We weren't necessarily clear that we consider both required.

This is the bare bones scaffolding from @vishh's PR #34787

Bundle GCI mounter w/ node tests and plumb --mounter-path through test args to the Kubelet for node tests

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Replace client with clientset

Replace client with clientset in some places

Fixes: #34637

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Add configmaps to federation apiserver

cc: @quinton-hoole @nikhiljindal

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Change a type of collection of strategies for NodePreparer

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Use TestNodePreparer in Density test

Depends on #35129

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Start tidying kubeadm up

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

This PR addresses https://github.com/kubernetes/kubernetes/pull/33262#discussion_r80337511.

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

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bootstrap: Start hostNetwork pods even if network plugin not ready

* Add gc unit test
* Fix init container unit test

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CRI: Symlink docker logs to CRI defined log path.

This PR symlink docker logs to the CRI defined log path.

I manually test myself, and it works. We still need some more unit test and a node e2e test.

@resouer is working on a node e2e test https://github.com/kubernetes/kubernetes/issues/34661.
For the unit test, the current `MakeFakePodSandbox` and `MakeFakeContainer` is not enough for unit test, because I need to create multiple instances for one container and sandbox to test garbage collection.

I'll send a separate PR to refactor the unit test framework in kuberuntime and finish the unit test.

@yujuhong @feiskyer 
/cc @kubernetes/sig-node