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Add "deploy" abbrev for deployments to kubectl
Most of the objects have the abbreviation (short form) in kubectl, for ex. rc == replicationcontroller. It'll be useful to have an abbrev for "deployments" as well and I'm proposing to use "dpl" for it.
P.S. It's my very first commit to k8s. I've signed CLA already. I've decided to create this pull request while waiting on more info in #24083.
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Add hooks for cluster health detection
Separate a function that decides if zone is healthy. First real commit for preventing massive pod eviction.
Ref. #28832
cc @davidopp
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Change storeToNodeConditionLister to return []*api.Node instead of api.NodeList for performance
Currently copies that are made while copying/creating api.NodeList are significant part of scheduler profile, and a bunch of them are made in places, that are not-parallelizable.
Ref #28590
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ListOptions: add test for ResourceVersion > 0 in List
ref: #28472
Done:
- Add a test for ResourceVersion > 0 in registry (cache) store List()
- Fix the docs.
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kubectl: refactor rollout history to be more configurable
ChangeCauseAnnotation is hardcoded in PrintRolloutHistory and it needs
to be overriden since other resources that may need to be added in
`kubectl rollout history` may not use it. Instead of adding one more
method in the factory, refactor the existing HistoryViewer interface
to accomodate the change.
@kubernetes/kubectl
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controller/volume: simplify sync logic in syncUnboundClaim
Remove all unnecessary branching logic. No actual logic changes. Code is more readable now.
ChangeCauseAnnotation is hardcoded in PrintRolloutHistory and it needs
to be overriden since other resources that may need to be added in
`kubectl rollout history` may not use it. Instead of adding one more
method in the factory, refactor the existing HistoryViewer interface
to accomodate the change.
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Generates DELETE pod update operations
fixes#27105
Generates DELETE pod update operations to make the code and log more intuitive.
1. main refactoring is in `kubelet/config`
2. kubelet will log if it received DELETE, just like other OPs
cc @Random-Liu :)
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Deprecate the term "Ubernetes"
Deprecate the term "Ubernetes" in favor of "Cluster Federation" and "Multi-AZ Clusters"
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--no-header available now for custom-column
Change `CustomColumnsPrinter` to have `noHeader` boolean, also changed `GetPrinter` to receive this bool and pass it through.
One test `TestNewColumnPrinterFromSpecWithNoHeaders` added for checking if there is no headers in output for sure
fixes#24133
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Allow a FIFO client to requeue under lock
The Pop method should allow a caller to requeue an item while under the
fifo lock, to avoid races on deletes.
@deads2k @wojtek-t
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Remove unnecessary calls to api.GetReference
These calls are unnecessary, can be removed. `Eventf` and others just call `GetReference` on the object they are passed.
cc @kubernetes/sig-node
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Remove no needed todo
ref #19645#13418
Remove comment about refactoring pod cleanup since we have agree to keep it.
cc @yujuhong
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Optimize priorities in scheduler
Ref #28590
It's probably easier to review it commit by commit, since those changes are kind of independent from each other.
@davidopp - FYI
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Optimizing the processing flow of HandlePodAdditions and canAdmitPod …
Optimizing the processing flow of HandlePodAdditions and canAdmitPod methods. If the following loop body in canAdmitPod method is removed, the detection speed can be improved, and the change is very small.
------
otherPods := []*api.Pod{}
for _, p := range pods {
if p != pod {
otherPods = append(otherPods, p)
}
}
------
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Add meta field to predicate signature to avoid computing the same things multiple times
This PR only uses it to avoid computing QOS of a pod for every node from scratch.
Ref #28590
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RemoveContainer in Runtime interface
- Added a DeleteContainer method in Runtime interface
- Implemented DeleteContainer for docker
#28552
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Fixes bad heuristic when calling "tc show" to check interface
`tc` sometimes returns stuff that has more than 12 words in its response. The heuristic is bad, but this at least fixes the case when `tc` is returning too much.
Fixes#28571.
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Add checks in Create and Update Cgroup methods
This PR is connected to upstream issue for adding pod level cgroups in Kubernetes: #27204
Libcontainer currently doesen't support updates to parent devices cgroups. Until we get libcontainer to support skipping devices cgroup we will have that logic on the kubelet side.
This PR includes:
1. Skip the devices cgroup when updating a cgroup. We only update the memory and cpu subsytems.
2. We explicitly pass all the cgroup paths that don't already exist to Apply()
3. Adds an AlreadyExists() method which is a utility function to check if all the subsystems of a cgroup already exist.
On cgroupManager.Update() we only call Set() and cgroupManager.Create() we only call Apply() method
@vishh PTAL
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Extract kubelet network code into its own file
Continuing the effort to begin modularizing the kubelet, this PR extracts the networking code into its own file.
@kubernetes/sig-node cc @kubernetes/sig-network
