Automatic merge from submit-queue

Add proposal for service externalName

This is a proposal to address: #13748.

@smarterclayton @ncdc @thockin.  Please check this out when you have time, hopefully this is okay :-D

I created the proposal because was unsure if the feature would be able to go in if there isn't a proposal already merged, because of this mail to kubernetes-pm: https://groups.google.com/forum/#!topic/kubernetes-pm/Ki63EztfZMo.

So, IIUC it would be nice to have the proposal merged ASAP (I think the interface looks ok for all, so hopefully this will be easy) so we can have this feature in 1.4 as you guys ( @smarterclayton @ncdc ) need.

Revert "Add and delete load balancer in front of apiserver."

Add and delete load balancer in front of apiserver.

Automatic merge from submit-queue

Change the name of the secret that delivers federation kubeconfig.

```release-note
Federation API server kubeconfig secret consumed by federation-controller-manager has a new name.

If you are upgrading your Cluster Federation components from v1.3.x, please run this command to migrate the federation-apiserver-secret to federation-apiserver-kubeconfig serect;

$ kubectl --namespace=federation get secret federation-apiserver-secret -o json | sed 's/federation-apiserver-secret/federation-apiserver-kubeconfig/g' | kubectl create -f -

You might also want to delete the old secret using this command:

$ kubectl delete secret --namespace=federation federation-apiserver-secret
```

The current name, federation-apiserver-secret, is very similar to the
other secret we have, federation-apiserver-secrets, that delivers
somewhat similar data but in a different format. This is extremely
confusing, particularly while debugging.

This change should soothe the pain.

cc @kubernetes/sig-cluster-federation 

Automatic merge from submit-queue

Make "attach" and "exec" rejection in proxy more explicit

```release-note
kubectl proxy changed to now allow urls to pods with "attach" or "exec" in the pod name
```

The more explicit regular expression for rejection makes a possibility of accessing pods (or any other resources) which contain "attach" or "exec" in their names via proxy API. It was not possible before.

Also, the reference for "run" resource was removed, because it doesn't exist in any of k8s APIs currently.

Fixes: #21464

Automatic merge from submit-queue

Revert "Scheduler predicates tests should consider unschedulable"

Reverts kubernetes/kubernetes#28970
See https://github.com/kubernetes/kubernetes/pull/28970#issuecomment-233817280

cc @pskrzyns @rmmh

Automatic merge from submit-queue

Move ExtractPodBandwidthResources test into appropriate package

Found during #28511, this test is in the wrong package currently.

cc @kubernetes/sig-network 

Automatic merge from submit-queue

AWS: Added experimental option to skip zone check

This pull request resolves #28380.  In the vast majority of cases, it is appropriate to validate the AWS region against a known set of regions.  However, there is the edge case where this is undesirable as Kubernetes may be deployed in an AWS-like environment where the region is not one of the known regions.

By adding the optional **DisableStrictZoneCheck true** to the **[Global]** section in the aws.conf file (e.g. /etc/aws/aws.conf) one can bypass the ragion validation. 

Automatic merge from submit-queue

dnsprovider: Use route53 page functions to avoid truncated results

The List<Type>Pages functions make it pretty easy to avoid result truncation;
switch to using them

Automatic merge from submit-queue

Format apiserver options

Trivial change, code formatting only: it was hard to read long lines, and my editor was really slow when scrolling through them.

Automatic merge from submit-queue

Ubuntu: Enable ssh compression when downloading binaries during cluster creation

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resolves #20971 by using the options provided by ssh. 

Native ssh compression has existed for years, and the server is free to disregard the setting, so this should be safe.

With things like the kube binaries I see about a 2x speed increase. 

```
λ time scp kubes-bin.tar   9.30.182.251:/mnt/build/kubin
kubes-bin.tar                                                                                                            100%  344MB  10.7MB/s   00:32

real	0m32.284s
user	0m1.679s
sys	0m1.263s

λ time scp -C kubes-bin.tar   9.30.182.251:/mnt/build/kubin
kubes-bin.tar                                                                                                            100%  344MB  22.9MB/s   00:15

real	0m14.810s
user	0m12.858s
sys	0m0.994s

λ ls -lah kubes-bin.tar
-rw-r--r--  1 mhb  staff   344M Jun  2 15:29 kubes-bin.tar

λ tar -tf kubes-bin.tar
kubectl
master/
master/etcd
master/etcdctl
master/flanneld
master/kube-apiserver
master/kube-controller-manager
master/kube-scheduler
node/
node/flanneld
node/kube-proxy
node/kubelet
```

Automatic merge from submit-queue

Certificate signing controller for TLS bootstrap (alpha)

The controller handles generating and signing certificates when a CertificateSigningRequest has the "Approved" condition. Uses cfssl to support a wide set of possible keys and algorithms. Depends on PR #25562, only the last two commits are relevant to this PR.

cc @mikedanese

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Automatic merge from submit-queue

Log the time when checking deployment's pod availability

https://github.com/kubernetes/kubernetes/issues/26834#issuecomment-233764007

Automatic merge from submit-queue

Mention that comments keep pull-requests open

A comment in a pull-request will keep it open for another 90 days. Let's
mention that in the documentation for people who can't add labels.

Automatic merge from submit-queue

Add extensions/replicaset to federation-apiserver

Add extensions/replicaset for federated scheduler (#24038) as all k8s api objects were removed in #23959

Please review only the very last one commit.

#19313 #23653 
@nikhiljindal @quinton-hoole, @deepak-vij, @XiaoningDing, @alfred-huangjian @mfanjie @huangyuqi @colhom

A comment in a pull-request will keep it open for another 90 days. Let's
mention that in the documentation for people who can't add labels.

Automatic merge from submit-queue

Don't do string(int)

This is causing https://github.com/kubernetes/kubernetes/pull/29147 to fail the unit test, because the bug prints control character to the test log, and the grep at this [line](https://github.com/kubernetes/kubernetes/blob/master/hack/make-rules/test.sh#L190) returns `Binary file (standard input) matches` error. I don't know why this bug isn't caught before.

Revert "Switched watches in tests require ResourceVersion to be passed"

Automatic merge from submit-queue

Fix a typo in my Github username [madhusudancs].

Automatic merge from submit-queue

Unable to have optional message slice

When making a message slice optional, we need to handle one more
conditional case in the rewriter.

@wojtek-t

The current name, federation-apiserver-secret, is very similar to the
other secret we have, federation-apiserver-secrets, that delivers
somewhat similar data but in a different format. This is extremely
confusing, particularly while debugging.

This change should soothe the pain.

The more explicit regular expression for rejection makes a
possibility of accessing pods (or any other resources) which
contain "attach" or "exec" in their names via proxy API. It
was not possible before.

Also, the reference for "run" resource was removed, because
it doesn't exist in any of k8s APIs currently.

Fixes: #21464

Automatic merge from submit-queue

Switched watches in tests require ResourceVersion to be passed

For testing the Watches are not sufficient in that it might miss the event of transitioning a Pod from one state to another which might happen before we start Watching events. To remedy this, I'm proposing to switch to Gets to always read the actual state of a Pod.

@smarterclayton this fixes https://github.com/openshift/origin/issues/9192 and hopefully all `gave up waiting for pod...` flakes 

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Automatic merge from submit-queue

Use Infof/Warningf when appropriate

When we use a format string, we should use Infof/Warningf instead
of Info/Warning

Automatic merge from submit-queue

Make clear where cherrypick PRs are being created

Automatic merge from submit-queue

Extra debug information in HPA events

Fixes: #29004

Automatic merge from submit-queue

Delete redundant if condition

The case `containerStatus == nil` has already been checked just above. It's redundant here.

Automatic merge from submit-queue

federation: Adding namespaces API

Adding namespaces API to federation-apiserver and updating the federation client to include namespaces


--------------------------

Original description:

This adds the namespaces API to federation-apiserver.

The first commit is https://github.com/kubernetes/kubernetes/pull/26142.