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Assume volume is detached if node doesn't exist

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export KUBE_USER to salt (support custom usernames) for vagrant, vsph…

GCE/GKE were handled in #29164, AWS was handled in #29428. This should cover the rest of the configurations that use ABAC.

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Allow PVs to specify supplemental GIDs

Retry of https://github.com/kubernetes/kubernetes/pull/28691 . Adds a Kubelet helper function for getting extra supplemental groups

Fixes #29358

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Add parsing code in kubelet for eviction-minimum-reclaim

The kubelet parses the eviction-minimum-reclaim flag and validates it for correctness.

The first two commits are from https://github.com/kubernetes/kubernetes/pull/29329 which has already achieved LGTM.

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kube-up: increase download timeout for kubernetes.tar.gz

Particularly on smaller instances on AWS, we were hitting the 80 second
timeout now that our image is well over the 1GB mark.

Increase the timeout from 80 seconds to 300 seconds.

Fix #29418

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Silence curl output

Removes the following from script output:
curl: (7) Failed to connect to 127.0.0.1 port 8080: Connection refused

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Update Libcontainer

This PR is linked to the upstream issue #27204 for introducing pod level cgroups into Kubernetes.

It just updates the Libcontainer dependency.

@vishh  PTAL

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Fix httpclient setup for gcp credential provider to have timeout

The default http client has no timeout.

This could cause problems when not on GCP environments.

This PR changes to use a 10s timeout, and ensures the transport has our normal defaults applied.

/cc @ncdc @liggitt 

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Include CNI for all architectures in the hyperkube image

Can some of you (@jfrazelle @mikedanese) quickly lgtm this?
I'd like it if we got it merged before v1.4.0-alpha.2

It's not a huge change, I'm just cross-compiling this CNI stuff while waiting for the v0.4.0 which likely will release binaries for all arches.

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Print two errors to log

The PR add two error info to log.

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add configz.InstallHandler in controllermanager.go

I think it should add configz.InstallHandler for Run function in controllermanager.go.

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Change SETUP_NODE to True for node e2e docker validation test.

The continuous node e2e docker validation test is failing because:
```
W0722 00:48:52.163940    1265 image_list.go:85] Could not pre-pull image gcr.io/google_containers/netexec:1.4 exit status 1 output:  Cannot connect to the Docker daemon. Is the docker daemon running on this host?
```
This is because jenkins is not added to docker user group.
For other images tested in node e2e, jenkins is added to docker user group when the images are initially created https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/environment/setup_host.sh#L102.

However, in node e2e docker validation test, we are using GCI image which doesn't do that.
So we should use the `SETUP_NODE` option to add user to docker group before test running https://github.com/kubernetes/kubernetes/blob/b6c87904f626395f63850c2f4e693859dffe558c/test/e2e_node/e2e_remote.go#L150-L159.

This is only one line change, could you help me review the PR? @wonderfly 
Thanks a lot! :)

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Expose Changesets (transactions) in dns provider

This makes the dnsprovider usable in more scenarios, and it also solves
some TODOs in the federation code.

WIP  - I'm going to test this to make sure this both works and is sufficient for use in my dns controller, but I wanted to put some code behind the talk in #28477.  cc @quinton-hoole 

Issue #28477

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AWS kube-up: fix MASTER_OS_DISTRIBUTION

On AWS we were defining KUBE_MASTER_OS_DISTRIBUTION, but the scripts
expect MASTER_OS_DISTRIBUTION.

Fixes #29422

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Enable endpoints in kubernetes service started by local-cluster-up.sh

--advertise_address should be set to 127.0.0.1, So let API server pick
the default if necessary.

Fixes #29374

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API types for FederatedReplicaSetPreferences

Currently only internal types just to unblock the work on scheduling part of Federated Replica Set Controller. 

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Clarify newline formatting for release note blocks.

Fixes https://github.com/kubernetes/release/issues/26

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Allow multiple APIs to register for the same API Group

Fixes https://github.com/kubernetes/kubernetes/issues/23831

@kubernetes/sig-api-machinery 

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Update etcd deprecated flag

update etcd deprecated flag
- "-addr" => "--advertise-client-urls"
- "-bind-addr" => "--listen-client-urls"

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Allow shareable resources for admission control plugins.

Changes allow admission control plugins to share resources. This is done via new PluginInitialization structure. The structure can be extended for other resources, for now it is an shared informer for namespace plugins (NamespiceLifecycle, NamespaceAutoProvisioning, NamespaceExists).

If a plugins needs some kind of shared resource e.g. client, the client shall be added to PluginInitializer and Wants methods implemented to every plugin which will use it.

- "-addr" => "--advertise-client-urls"
- "-bind-addr" => "--listen-client-urls"

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Fix a problem with multiple APIs clobbering each other in registration.

Fixes https://github.com/kubernetes/kubernetes/issues/24392

@kubernetes/sig-api-machinery 

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Add kubelet flag for eviction-minimum-reclaim

This is taken from #27199 as its the most burdensome to rebase and should have little disagreement.

/cc @vishh @ronnielai PTAL

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Add a value judgement for the cloud in controllermanager.go

The PR add a value judgement for the cloud, because cloudprovider.InitCloudProvider maybe return nil for the cloud.

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Update proposed flag names for kubelet eviction

This PR changes the flag names proposed in kubelet eviction for minimum amount of resource to reclaim when triggering an eviction.

This captures the design change proposed and agreed to in #27199 

Having it in a separate PR removes noise from reviewing the core PR.

/cc @vishh @ronnielai PTAL

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Makefile fixes and speed

A few fixes that, together, make the 'make' experience smoother and more seamless.
    * `make clean all` works (@soltysh)
    * `make clean` does no spend 5 seconds loading deps just to remove them
    * deps building is faster

Fixes #28890
Ref #8830

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Use patch when recording commands in kubectl set image

1. Use `Patch` to mitigate update conflict. See http://stackoverflow.com/questions/38476531/kubernetes-kubectl-set-image-deployment-not-able-to-record-history
2. Return warning instead of error when fail to record command

@kubernetes/kubectl 

This makes the dnsprovider usable in more scenarios, and it also solves
some TODOs in the federation code.

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Add f.Close() for applyOOMScoreAdj

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Add default leader election for scheduler and controller manager.

#21124

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ReplicaSet controller can set/remove ControllerRef

This is mostly a copy from https://github.com/kubernetes/kubernetes/pull/27600