Automatic merge from submit-queue

[Networking] [E2E]  n-to-1 iperf client->server throughput benchmarking 

Automatic merge from submit-queue

Port-forward: use out and error streams instead of glog

Switches use of glog with command out and error streams

Automatic merge from submit-queue

Provide flags to use etcd3 backed storage

ref: #24405

What's in this PR?
- Add a new flag "storage-backend" to choose "etcd2" or "etcd3". By default (i.e. empty), it's "etcd2".
- Take out etcd config code into a standalone package and let it create etcd2 or etcd3 storage backend given user input.

Automatic merge from submit-queue

Support Close() in streaming decoder

[This would be useful for changes in clients to support protobufs.]

Automatic merge from submit-queue

Make all defaulters public

Will allow for generating direct accessors in conversion code instead of using reflection.

@wojtek-t

Automatic merge from submit-queue

Fix zone in kubemark-100

Automatic merge from submit-queue

Promote Pod Hostname & Subdomain to fields (were annotations)

Deprecating the podHostName, subdomain and PodHostnames annotations and created corresponding new fields for them on PodSpec and Endpoints types.

Annotation doc: #22564
Annotation code: #20688

Automatic merge from submit-queue

Create OWNERS for jenkins data

Assigne jenkins changes to more precise owners.

Automatic merge from submit-queue

Slightly more effective conversion test (better variety)

Exercises more code paths for debugging memory allocations.

Automatic merge from submit-queue

Add godoc for some kubelet funcs

Chipping away at that old boulder

@kubernetes/sig-node

Automatic merge from submit-queue

Move kubemark-100 to us-central

Automatic merge from submit-queue

Fix test-history. RE objects aren't callable.

Automatic merge from submit-queue

Validate deletion timestamp doesn't change on update

Fixes https://github.com/kubernetes/kubernetes/issues/24828

Preparing to generate direct defaulter access.

Automatic merge from submit-queue

Add utility for determining qos of a pod

@vishh - per slack chat.

Automatic merge from submit-queue

Add kubemark-100 for testing out new performance measurements

cc @spxtr 

Automatic merge from submit-queue

Cleans up line wrap at 80 cols and some minor editing issues 

Address line wrap issue #1488.  Also cleans up other minor editing issues in the docs/design/* tree such as spelling errors. 
Signed-off-by: mikebrow <brownwm@us.ibm.com>

Automatic merge from submit-queue

fully qualify admission resources and kinds

Fully qualifies the `Kind` and `Resource` fields for admission attributes.  The information was getting filtered at the `RESTHandler` before.

@derekwaynecarr

Automatic merge from submit-queue

Update Docker version after cockpit installation

Fixes https://github.com/kubernetes/kubernetes/issues/24530
The vagrant setup didn't worked for me because `cockpit cockpit-kubernetes` brings their own Docker version (1.7) which doesn't work and the master components doesn't come up. More information about this bug are in my [issue](https://github.com/kubernetes/kubernetes/issues/24530).

My test system:

```bash
$ uname -a                        
Darwin MyMacBook.local 15.4.0 Darwin Kernel Version 15.4.0: Fri Feb 26 22:08:05 PST 2016; root:xnu-3248.40.184~3/RELEASE_X86_64 x86_64

$ vagrant --version                                                                                                                                                             
Vagrant 1.8.1

$ VBoxManage --version                                                                                                                                                          
5.0.16r105871
```

Automatic merge from submit-queue

Update configmap design doc

1. Update ConfigMapSelector -> ConfigMapKeySelector
2. Update apiVersion to v1
3. Fix error validating data: expected type array, for field spec.containers[0].command, got string; if you choose to ignore these errors, turn validation off with --validate=false 

Automatic merge from submit-queue

refactor conformance test

@Random-Liu  Rebase the testing code.
Signed-off-by: liang chenye <liangchenye@huawei.com>

Automatic merge from submit-queue

Store node information in NodeInfo

This is significantly improving scheduler throughput.

On 1000-node cluster:
- empty cluster: ~70pods/s
- full cluster: ~45pods/s
Drop in throughput is mostly related to priority functions, which I will be looking into next (I already have some PR #24095, but we need for more things before).

This is roughly ~40% increase.
However, we still need better understanding of predicate function, because in my opinion it should be even faster as it is now. I'm going to look into it next week.

@gmarek @hongchaodeng @xiang90 

Automatic merge from submit-queue

Uncomment the code that caused by #19254

Fix https://github.com/kubernetes/kubernetes/issues/24546.

@lavalamp 

Signed-off-by: liang chenye <liangchenye@huawei.com>

Automatic merge from submit-queue

Do not update cache with so much effort

Fixes: #24298
1. Remove automatic update
2. Every time we check if we can get valid value from cache, if not, get the value directly from api

cc @Random-Liu 

Automatic merge from submit-queue

Add flag -t as shorthand for --tty

`-t` was deprecated in #12813 (Aug. 2015, about 6+ months ago). 

Now remove `--template`'s shorthand `-t` and create a shorthand `-t` for `--tty` in `kubectl run`. 

@kubernetes/kubectl 

Automatic merge from submit-queue

Add protobuf documentation

First commit is in another PR, @wojtek-t review

Automatic merge from submit-queue

Add support for running clusters on GCI

Google Container-VM Image (GCI) is the next revision of Container-VM. See documentation at https://cloud.google.com/compute/docs/containers/vm-image/. This change adds support for starting a Kubernetes cluster using GCI.

With this change, users can start a kubernetes cluster using the latest kubelet and kubectl release binary built in the GCI image by running:

	$ KUBE_OS_DISTRIBUTION="gci" cluster/kube-up.sh

Or run a testing cluster on GCI by running:

	$ KUBE_OS_DISTRIBUTION="gci" go run hack/e2e.go -v --up

The commands above will choose the latest GCI image by default.

Automatic merge from submit-queue

Generated clients can return their RESTClients, RESTClient can return its RateLimiter

cc @lavalamp @krousey @wojtek-t @smarterclayton @timothysc 

Ref. #22421