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Add test for supplemental gid annotation to pv e2e test
Test for feature added in #29119. Adds the annotation to the pv in the PersistentVolumes e2e test. It tests it by checking the output of 'id -G.' Also tests the actual use case of an nfs server by using an nfs server image 'volume-nfs-gid', modified slightly from 'volume-nfs' to have some permissions set.
@pmorie
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pkg/controller/garbagecollector: simplify mutexes.
pkg/controller/garbagecollector: simplified synchronization and made idiomatic.
Similar to #29598, we can rely on the zero-value construction behavior
to embed `sync.Mutex` into parent structs.
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Assign Probing Container tests to Random-Liu
Also remove some random Random-Liu assignments.
Add other missing test cases.
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apiserver: fix timeout handler
Protect access of the original writer. Panics if anything has wrote
into the original writer or the writer is hijacked when times out.
Fix#29001
/cc @smarterclayton @lavalamp
The next step would be respect the request context once 1.7 is out.
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Add cleanup addon pod to remove empty keys from etcd
namespace deletion will leave a trace of empty keys on etcd. This PR adds an addon pod to periodically check for those empty keys on etcd and remove them.
fixes#27307
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Cut the client repo, staging it in the main repo
Tracking issue: #28559
ref: https://github.com/kubernetes/kubernetes/pull/25978#issuecomment-232710174
This PR implements the plan a few of us came up with last week for cutting client into its own repo:
1. creating "_staging" (name is tentative) directory in the main repo, using a script to copy the client and its dependencies to this directory
2. periodically publishing the contents of this staging client to k8s.io/client-go repo
3. converting k8s components in the main repo to use the staged client. They should import the staged client as if the client were vendored. (i.e., the import line should be `import "k8s.io/client-go/<pacakge name>`). This requirement is to ease step 4.
4. In the future, removing the staging area, and vendoring the real client-go repo.
The advantage of having the staging area is that we can continuously run integration/e2e tests with the latest client repo and the latest main repo, without waiting for the client repo to be vendored back into the main repo. This staging area will exist until our test matrix is vendoring both the client and the server.
In the above plan, the tricky part is step 3. This PR achieves it by creating a symlink under ./vendor, pointing to the staging area, so packages in the main repo can refer to the client repo as if it's vendored. To prevent the godep tool from messing up the staging area, we export the staged client to GOPATH in hack/godep-save.sh so godep will think the client packages are local and won't attempt to manage ./vendor/k8s.io/client-go.
This is a POC. We'll rearrange the directory layout of the client before merge.
@thockin @lavalamp @bgrant0607 @kubernetes/sig-api-machinery
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HPA: ignore scale targets whose replica count is 0
Disable HPA when the user (or another component) explicitly sets the replicas to 0.
Fixes#28603
@kubernetes/autoscaling @fgrzadkowski @kubernetes/rh-cluster-infra @smarterclayton @ncdc
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Modify predicate() interface to return all failed predicates
As stated in the comments below, this is the first step of showing the user all predicates that failed for a given node when scheduling of a given pod failed on every node.
ref #20064
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Remove default etcd validation in generic apiserver
Moving verification of `--etcd-servers` to the concrete apiserver instead of checking during defaulting in generic apiserver.
The context for this change is that heapster (will be another apiserver) doesn't need to have etcd underneath.
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