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[Kubelet] Use the custom mounter script for Nfs and Glusterfs only
This patch reduces the scope for the containerized mounter to NFS and GlusterFS on GCE + GCI clusters
This patch also enabled the containerized mounter on GCI nodes
Shepherding multiple PRs through the submit queue is painful. Hence I combined them into this PR. Please review each commit individually.
cc @jingxu97 @saad-ali
https://github.com/kubernetes/kubernetes/pull/35652 has also been reverted as part of this PR
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pod and qos level cgroup support
```release-note
[Kubelet] Add alpha support for `--cgroups-per-qos` using the configured `--cgroup-driver`. Disabled by default.
```
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Move Statefulset (previously PetSet) to v1beta1
**What this PR does / why we need it**: #28718
**Which issue this PR fixes** _(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)_: fixes #
**Special notes for your reviewer**: depends on #35663 (PetSet rename)
cc @erictune @foxish @kubernetes/sig-apps
**Release note**:
``` release-note
v1beta1/StatefulSet replaces v1alpha1/PetSet.
```
When looking for overlapping deployments, we should also find other deployments that select current deployment's pods,
not just the ones whose pods are selected by current deployment.
--force is required for --grace-period=0. --now is == --grace-period=1.
Improve command help to explain what graceful deletion is and warn about
force deletion.
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Making the pod.alpha.kubernetes.io/initialized annotation optional in PetSet pods
**What this PR does / why we need it**: As of now, the absence of the annotation `pod.alpha.kubernetes.io/initialized` in PetSets causes the PetSet controller to effectively "pause". Being a debug hook, users expect that its absence has no effect on the working of a PetSet. This PR inverts the logic so that we let the PetSet controller operate as expected in the absence of the annotation.
Letting the annotation remain alpha seems ok. Renaming it to something more meaningful needs further discussion.
**Which issue this PR fixes** _(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)_: fixes https://github.com/kubernetes/kubernetes/issues/35498
**Special notes for your reviewer**:
**Release note**:
``` release-note
The annotation "pod.alpha.kubernetes.io/initialized" on StatefulSets (formerly PetSets) is now optional and only encouraged for debug use.
```
cc @erictune @smarterclayton @bprashanth @kubernetes/sig-apps
@kow3ns The examples will need to be cleaned up as well I think later on to remove them.
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Node controller to not force delete pods
Fixes https://github.com/kubernetes/kubernetes/issues/35145
- [x] e2e tests to test Petset, RC, Job.
- [x] Remove and cover other locations where we force-delete pods within the NodeController.
**Release note**:
<!-- Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
-->
``` release-note
Node controller no longer force-deletes pods from the api-server.
* For StatefulSet (previously PetSet), this change means creation of replacement pods is blocked until old pods are definitely not running (indicated either by the kubelet returning from partitioned state, or deletion of the Node object, or deletion of the instance in the cloud provider, or force deletion of the pod from the api-server). This has the desirable outcome of "fencing" to prevent "split brain" scenarios.
* For all other existing controllers except StatefulSet , this has no effect on the ability of the controller to replace pods because the controllers do not reuse pod names (they use generate-name).
* User-written controllers that reuse names of pod objects should evaluate this change.
```
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Disruption e2e: wait for running pods in the table test, too
**What this PR does / why we need it**: Makes the `DisruptionController` tests less flaky.
**Which issue this PR fixes**: fixes#34032
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e2e: Fix GetReadySchedulableNodesOrDie for taints
**What this PR does / why we need it**:
This changes framework.GetReadySchedulableNodesOrDie and
framework.GetMasterAndWorkerNodesOrDie so that nodes that can't take a
generic fake pod due to a taint/toleration mismatch aren't returned.
This is a rehash of #35210, but pulls in the scheduler code.
**Which issue this PR fixes**: c.f. #35210
**Special notes for your reviewer**: I think it's gross that we keep having to manually compute this in e2es. Maybe we need a bug for that?
This changes framework.GetReadySchedulableNodesOrDie and
framework.GetMasterAndWorkerNodesOrDie so that nodes that can't take a
generic fake pod due to a taint/toleration mismatch aren't returned.
This is a rehash of #35210, but pulls in the scheduler code.
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Verify and update client-go staging area for every PR
We need to keep the staging area up-to-date to prevent PRs from breaking client-go.
It's marked as "WIP" because we need to decide the [versioning strategy](https://github.com/kubernetes/client-go/issues/9) for client-go first. This PR contains breaking changes for client-go.
This is blocking #29934 and potentially #34441
cc @kubernetes/sig-api-machinery
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Let release_1_5 clientset include multiple versions of a group
Fix#35237
This PR make versioned clientset to include multiple versions of a group. Currently only `batch` has `v1` and `v2alpha1`. The clientset interface now looks like:
```go
BatchV2alpha1() v2alpha1batch.BatchV2alpha1Interface
BatchV1() v1batch.BatchV1Interface
// Deprecated: please explicitly pick a version if possible.
Batch() v1batch.BatchV1Interface
```
Commit "update client-gen to say internalversion rather than unversioned" fixes https://github.com/kubernetes/kubernetes/issues/24481.
cc @kubernetes/sig-api-machinery @soltysh @deads2k @nikhiljindal
```release-note
release_1_5 clientset supports multiple versions of a group.
```
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Make overlapping deployments deletable
@kubernetes/deployment ptal
Fixes https://github.com/kubernetes/kubernetes/issues/34466 by 1) not adding the overlapping annotation in the working deployment, 2) updates observedGeneration for overlapping deployments, and 3) updates the kubectl deployment reaper to do non-cascading deletion for deployments with the overlapping annotation.
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Fixing e2e tests which rely on network disruptions
**What this PR does / why we need it**: It fixes e2e tests on network disruptions
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/kubernetes/issues/27324, https://github.com/kubernetes/kubernetes/issues/35293https://github.com/kubernetes/kubernetes/pull/33655 changed the kubelet's `--api-server` flag to use the external IP address of the APIServer in GCE. Hence, the iptables rules were failing previously. We now return the external IP for `getMaster()`. This fix is required in order to write e2e tests which test behavior in the face of network disruptions.
/cc @bprashanth @dchen1107 @kubernetes/sig-apps
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Add a retry when reading a file content from a container
To avoid temporal failure in reading the file content, add a retry
process in function verifyPDContentsViaContainer
- Prevents kubelet from overwriting capacity during sync.
- Handles opaque integer resources in the scheduler.
- Adds scheduler predicate tests for opaque resources.
- Validates opaque int resources:
- Ensures supplied opaque int quantities in node capacity,
node allocatable, pod request and pod limit are integers.
- Adds tests for new validation logic (node update and pod spec).
- Added e2e tests for opaque integer resources.
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remove the non-generated client
Removes the non-generated client from kube. The package has a few methods left, but nothing that needs updating when adding new groups.
@ingvagabund
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Set done to true & return error if RestartPolicy not Always in test framework
Found a small issue with https://github.com/kubernetes/kubernetes/pull/34632, it returns an error if the RestartPolicy is not Always, but the user will never see it because done isn't set to true & they will timeout instead.
@Random-Liu because you wrote that PR
