* 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

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kubeadm: added unit tests for app/images pkg

Added unit tests for kubeadm/app/images package testing functionality of images.go.

This PR is part of the ongoing effort to add tests (#35025)

/cc @pires @jbeda

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Add verbose mode to boilerplate

hack/verify-boilerplate.sh -v will now print out why the file does
not match along with a diff if possible.

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add required fields to test service

fix #35247

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Refactor some functions in kube-dns to reduce surface area

- Moves federation query path out to its own method
- Creates dns/util and moves some trivial methods to that package

This is just moving of code.

hack/verify-boilerplate.sh -v will now print out why the file does
not match along with a diff if possible.

Note: boilerplate.py now has a unit test that is run along with
hack/verify-boilerplate.sh.

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disable bazel build

until we figure out what to do with mac

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enhance join arguments generation logic using template

**What this PR does / why we need it**:
this PR enhances kubeadm join arguments generation logic using template, this makes code more readable and adding arguments more  easier.

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

**Special notes for your reviewer**:

**Release note**:
<!--  Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access) 
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`. 
-->
```release-note
```
Signed-off-by: 欧阳钦华10079130 <ouyang.qinhua@zte.com.cn>

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e2e: delete cleanup main that isn't compiling

Signed-off-by: 欧阳钦华10079130 <ouyang.qinhua@zte.com.cn>

change JoinArgsData to joinArgsData, improve template readability
Signed-off-by: redhatlinux10 <ouyang.qinhua@zte.com.cn>

fix extra = type
Signed-off-by: redhatlinux10 <ouyang.qinhua@zte.com.cn>

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Federated replica set design doc

cc: @quinton-hoole @kubernetes/sig-cluster-federation

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Fix compile error on non-linux platform

Fix #35252

cc/ @smarterclayton @spxtr

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Factor out post-init swagger and OpenAPI routes

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Add authentication to openapi Spec

We need authentication definition in OpenAPI spec to be able to generate a client with authorization.

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Kubelet getting node from apiserver cache before update.

This is blocked on #35218 (however it's ready for review).

It seems to visibly reduce the apiserver metrics (and I didn't observe higher number of conflicts even in 2000-node kubemark).

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service e2e: remove TODO and subtle changes in logging

Removes the stale `TODO` for external source IP preservation as the e2e test of ESIPP was added.

Changes logging in create service functions: namespace/namespace -> namespace/serviceName.

@bprashanth

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substitute gcloud regex with regexp

fixes https://github.com/kubernetes/kubernetes/issues/33840

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ignore default.etcd directory

When using `hack/install-etcd.sh`, `/default.etcd` is created for the data directory.  Add that to `.gitignore`.

```release-note
NONE
```

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proposals: Add Volume Hostpath "type" proposal

This is a continuation of #31384. It's related to #26816 as well.
The discussion in #31384 is worth reading and this proposal largely derives from my comments there.

cc @thockin @pmorie @saad-ali @kubernetes/sig-storage 
cc @yujuhong since it talks briefly about kubelet doing more

cc @calebamiles I think we might need a "Feature" for this since it's an api change, though a minor one?

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Allocate static-ip through cloudprovider library instead of gcloud

Fixes https://github.com/kubernetes/kubernetes/issues/33840
https://github.com/kubernetes/kubernetes/issues/33840#issuecomment-255277349 for details

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support building with bazel

```
$  bazel version
Build label: 0.3.1
Build target: bazel-out/local-fastbuild/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Fri Jul 29 09:09:52 2016 (1469783392)
Build timestamp: 1469783392
Build timestamp as int: 1469783392
```
is my bazel version
```
bazel build //cmd/...
```
mostly works.
```
bazel test //pkg/...
```
kind of works.

ref #23236

@thockin @madhusudancs @krousey