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Change eviction logic in NodeController and make it Zone-aware
Ref. #28832
This PR changes the behavior of the NodeController. From now on
```release-note
Change eviction policies in NodeController:
- add a "partialDisruption" mode, when more than 33% of Nodes in the zone are not Ready
- add "fullDisruption" mode, when all Nodes in the zone are not Ready
Eviction behavior depends on the mode in which NodeController is operating:
- if the new state is "partialDisruption" or "fullDisruption" we call a user defined function that returns a new QPS to use (default 1/10 of the default rate, and the default rate respectively),
- if the new state is "normal" we resume normal operation (go back to default limiter settings),
- if all zones in the cluster are in "fullDisruption" state we stop all evictions.
```
cc @wojtek-t @smarterclayton @davidopp
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Create client from API version passed in config or use default
When creating a client read the `GroupVersion` value passed in the `restclient.Config`. If the passed `GroupVersion` does not match current group or is not enabled fallback to default `GroupVersion` for that group.
This PR should allow accessing `ScheduledJob` properly in `batch/v2alpha1`.
@smarterclayton @deads2k @caesarxuchao @lavalamp ptal
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Node E2E: Add serial jenkins job.
This PR added a jenkins job for serial test. It will run all serial test one by one.
This will be useful for https://github.com/kubernetes/kubernetes/pull/29809.
@coufon @yujuhong @dchen1107
/cc @kubernetes/sig-node
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Kubelet: add fake kube runtime
Add a new fake kube runtime with kubelet using the new runtime API.
CC @yujuhong @Random-Liu
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pods which can not be admitted should return directly
if the pod can not be admitted, the code runPod(pod, retryDelay) should not be run.
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Remove -e from 'go list' so missing files will halt the build
In the case that any of the files being processed by this pipeline are missing, `go list -e` sends the error to the template, which results in cryptic build errors like `No rule to make target '/*.go'`
This came up in #28987, and although that issue has already been fixed by munging the specific path - 2a4495cf89 (diff-78183b4162626e1797dae5558b01caa0R423) - I suggest it would be best to take out the possibility of the same thing happening again for different reasons.
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Fix make verify
@thockin this fixes `make verify` which was previously failing due to undefined `BRANCH` and `VERBOSE` variables, ptal
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Add a flag for `kubectl expose`to set ClusterIP and allow headless services
- Use `--cluster-ip=None` to create a headless service
- Fixes#10294
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separate out api group storage registration
Moves RESTStorage creation for API groups out of master.go proper and makes dependencies clear.
This is prereq for being able to build the `RESTStorageProviders` as plugins.
@lavalamp This is the follow-on I promised.
@sttts ptal.
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optimise some code style in server.go
The PR modified some code style for authPathClientConfig and parseReservation function in server.go.
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[Federation] Downsize the release binary distribution.
There are two things that this PR implements:
1. It removes `federation-apiserver` and `federation-controller-manager` from binaries and docker_wrapped_binaries target lists.
2. Build the docker image for `hyperkube` on-the-fly while pushing the federation images.
```release-note
Federation binaries and their corresponding docker images - `federation-apiserver` and `federation-controller-manager` are now folded in to the `hyperkube` binary. If you were using one of these binaries or docker images, please switch to using the `hyperkube` version. Please refer to the federation manifests - `federation/manifests/federation-apiserver.yaml` and `federation/manifests/federation-controller-manager-deployment.yaml` for examples.
```
cc @kubernetes/sig-cluster-federation @colhom
Fixes Issue #28633
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cluster/images/hyperkube: re-add hyperkube busybox style symlinks
Originally symlinks were added with a `--make-symlinks` command discussed in https://github.com/kubernetes/kubernetes/issues/24510 and implemented in https://github.com/kubernetes/kubernetes/pull/24511.
It was backed out in https://github.com/kubernetes/kubernetes/pull/25693 because go binaries don't run in qemu and this breaks cross-building the Dockerfile for arm. In this case, due to running `hyperkube --make-symlinks`.
Lets just add the symlinks manually until the upstream bug is fixed (qemu).
fixes#28702
@mikedanese @thockin @yifan-gu @euank
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Updated fluentd configuration to spawn multiple threads for processing
(by default, fluentd uses a single thread).
@a-robinson @igorpeshansky
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Print/log pointers of structs with %#v instead of %+v
There are many places in k8s where %+v is used to format a pointer to struct, which isn't working as expected.
Fixes#26591
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add union registry for quota
Adds the ability to combine multiple quota registries together. Kube needs this for other types.
@derekwaynecarr
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Error out when any RS has more available pods then its spec replicas
Fixes#29559 (hopefully, if not the bot will open new issues for us)
@kubernetes/deployment
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