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Kubelet: add kubeGenericRuntimeManager for new runtime API
Part of #28789. Add `kubeGenericRuntimeManager` for kubelet new runtime API #17048.
Note that:
- To facilitate code reviewing, #28396 is splited into a few small PRs. This is the first part.
- This PR also fixes some syntax errors in `api.proto`.
- This PR is depending on #29811 (already merged).
CC @yujuhong @Random-Liu @kubernetes/sig-node
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Refactoring runner resource container linedelimiter to it's own pkg
Continuing my work ref #15634
Anyone is ok to review this fix.
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Stabilize volume unit tests by waiting for exact state
Wait for specific final state instead of waiting for specific number of
operations in controller unit tests. The tests are more readable and will survive
random goroutine ordering (PV and PVC controller have both their own
goroutine).
@kubernetes/sig-storage
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Kubelet: add gRPC implementation of new runtime interface
Add gRPC implementation of new runtime interface.
CC @yujuhong @Random-Liu @kubernetes/sig-node
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Validate list objects when building scheme
The first commit is #29468. This PR is a followup.
Modified the description of **List** in api-convention.md to:
`The name of a list kind must end with "List". Lists have a limited set of common metadata. All lists use the required "items" field to contain the array of objects they return. Any kind that has the "items" field must be a list kind.`
Also added code to enforce the above rules during scheme registration.
@kubernetes/sig-api-machinery @bgrant0607 @erictune @lavalamp @smarterclayton
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allow watching old resources with kubectl
Right now, one can not watch a resource with kubectl whose resourceVersion is outside the etcd watch window. Specifying resourceVersion=0 returns the current object, then watches from the current index.
This PR changes the logic to use resourceVersion=0, which will work regardless of the resourceVersion of the object, and discard the first event if --watch-only is specified.
@ncdc @aveshagarwal
Added a PriorityRESTMapper that operates off of discovery information. I
made an auxiliary data type and function to help collect and organize
the information.
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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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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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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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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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Document space shuttle style in controller/volume
Reverts #28813 and #28111.
@xiang90, I really appreciate the effort that went into your PRs (and think, in general, code simplification is a worthwhile effort), but the style in this controller was intentional to ensure that every branch is covered. The verbosity and branchyness of this controller stores a lot of context and knowledge about how this subsystem is meant to function, so we need to put them back in.
@kubernetes/sig-storage
cc @jsafrane @saad-ali @matchstick @thockin @childsb @rootfs
