Automatic merge from submit-queue

Add build instructions for the impatient

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

* it adds a small section to build k8s for the impatient.
* it fixes a typo
* it removes the code-of-conduct file which was a redirect to the cncf code.

fixes part of #36655

Automatic merge from submit-queue

Don't eat 403 in service controller

I haven't done a stress run of Services e2es locally yet, but I did verify that this fixes the specific "stuck in pending bug"

Automatic merge from submit-queue (batch tested with PRs 38818, 38813, 38820)

E2E test lib: improved logging of not ready nodes.

Automatic merge from submit-queue (batch tested with PRs 38818, 38813, 38820)

update for controller RBAC roles

Role and binding updates from running e2e using RBAC during the tests in https://github.com/kubernetes/kubernetes/pull/38626

@sttts should be quick. No obvious typos.  Nothing that looks off.

Automatic merge from submit-queue (batch tested with PRs 38818, 38813, 38820)

AWS: Add sequential allocator for device names.

On AWS, we should not reuse device names as long as possible, see https://aws.amazon.com/premiumsupport/knowledge-center/ebs-stuck-attaching/

> "If you specify a device name that is not in use by EC2, but is being used by the block device driver within the EC2 instance, the attachment of the EBS volume does not succeed and the EBS volume is stuck in the attaching state."

This patch adds a device name allocator that tries to find a name that's next to the last used device name instead of using the first available one. This way we will loop through all device names ("xvdba" .. "xvdzz") before a device name is reused.

Fixes: #31891

@wongma7, @gnufied, @childsb PTAL

E2E test lib: improved logging of not ready nodes.

On AWS, we should not reuse device names as long as possible, see
https://aws.amazon.com/premiumsupport/knowledge-center/ebs-stuck-attaching/

"If you specify a device name that is not in use by EC2, but is being used by
the block device driver within the EC2 instance, the attachment of the EBS
volume does not succeed and the EBS volume is stuck in the attaching state."

This patch adds a device name allocator that tries to find a name that's next
to the last used device name instead of using the first available one.
This way we will loop through all device names ("xvdba" .. "xvdzz") before
a device name is reused.

Automatic merge from submit-queue

fix typo in apiserver

Fixes a small typo I stumbled upon today.

Automatic merge from submit-queue (batch tested with PRs 38803, 38711)

Use Get from cache in apiserver in kubelet

Ref #37473

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Kubemark etcd flags

Fix for #38770.

cc @shyamjvs

Automatic merge from submit-queue

Add use case to service affinity

Also part of nits in refactoring predicates, I found the explanation of `serviceaffinity` in its comment is very hard to understand. So I added example instead here to help user/developer to digest it.

Automatic merge from submit-queue (batch tested with PRs 37190, 38793)

cluster/images/hyperkube: add jq for some volume plugins

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

Some flexvolume plugins use jq. See also https://github.com/coreos/bugs/issues/1706

It weighs in at about 400kb, so seems sane to include.

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

cc @luxas @pbx0

Automatic merge from submit-queue

Add 'X-Content-Type-Options: nosniff" to some error messages

Fixes https://github.com/kubernetes/kubernetes/issues/37108

@lavalamp @timstclair 

(though actually, it's not 100% clear to me that these functions are ever called anywhere...)

Automatic merge from submit-queue (batch tested with PRs 36129, 37920)

fix kube::log::error in `start_rsyncd_container`.

fix kube::log::error of `start_rsyncd_container` in common.sh.
Signed-off-by: xuxinkun <xuxinkun@gmail.com>

Automatic merge from submit-queue (batch tested with PRs 36129, 37920)

bazel: build debs for kubelet and kubeadm

for comparison: https://github.com/kubernetes/release/tree/master/debian

cc @pipejakob

Signed-off-by: xuxinkun <xuxinkun@gmail.com>

Automatic merge from submit-queue (batch tested with PRs 38783, 36396)

Display pod node selectors with kubectl describe.

**What this PR does / why we need it**:
This PR fixes kubectl describe so that it now shows associated node selectors with pods.

**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**:

```release-note
```

@kubernetes/rh-cluster-infra @kubernetes/kubectl

Automatic merge from submit-queue (batch tested with PRs 38783, 36396)

hack/cherry_pick_pull.sh: cleanup patch files

this was driving me nuts.
it will now remove the patch files from /tmp

Automatic merge from submit-queue (batch tested with PRs 38736, 38701)

Don't retry creating route if it already exists

Ref. #38618

Automatic merge from submit-queue

Rename root BUILD to BUILD.bazel, and rename build-tools/ back to build/

**What this PR does / why we need it**: undoes #35453. `build-tools/` was intended to be a temporary workaround until https://github.com/bazelbuild/bazel/issues/552 was fixed, which is has been, as of bazel 0.4.1.

**Which issue this PR fixes**: fixes #38126

FYI @thockin 

since this is likely to be rebase hell, my list of actions:
```console
$ git mv BUILD BUILD.bazel
$ git commit -a
$ git mv build-tools/ build/
$ sift -l 'build-tools' | xargs sed -i -e 's:build-tools/:build/:g'
$ git checkout HEAD docs/
$ git commit -a
```

Automatic merge from submit-queue (batch tested with PRs 37708, 34410)

Fix some logs and commend information for healthz

Fix some logs which should be a lower case letter for the first letter and modify some commend information which is consistent in context.

Signed-off-by: yuexiao-wang wang.yuexiao@zte.com.cn

Merge pull request #37708 from juanvallejo/jvallejo/add-restclient-config-helper-for-parsing-global-timeout

Automatic merge from submit-queue (batch tested with PRs 37708, 34410)

Add restclientconfig helper fn for parsing timeout

Related downstream PR: https://github.com/openshift/origin/pull/12062 (example of use-case for this patch)

**Release note**:
```release-note
release-note-none
```

This patch adds a package `pkg/client/unversioned/clientcmd/util` and
defines a `ParseTimeout` helper function for parsing time from a
user-defined string. This allows code re-use in other packages that
require the creation of a new restclient (and therefore must set the
`--global-timeout` flag value manually).

@fabianofranz @kubernetes/cli-review

Signed-off-by: Jess Frazelle <acidburn@google.com>

Automatic merge from submit-queue (batch tested with PRs 38154, 38502)

Wrong comment to describe docker version

The original comment about minimal docker version fo `room_score_adj` is wrong (though the code is right).

Really sorry for misleading :/

Automatic merge from submit-queue (batch tested with PRs 38154, 38502)

Rename "release_1_5" clientset to just "clientset"

We used to keep multiple releases in the main repo. Now that [client-go](https://github.com/kubernetes/client-go) does the versioning, there is no need to keep releases in the main repo. This PR renames the "release_1_5" clientset to just "clientset", clientset development will be done in this directory.

@kubernetes/sig-api-machinery @deads2k 

```release-note
The main repository does not keep multiple releases of clientsets anymore. Please find previous releases at https://github.com/kubernetes/client-go
```

run hack/verify-gofmt.sh
update bazel