Automatic merge from submit-queue (batch tested with PRs 42692, 42169, 42173)
DaemonSet: Respect ControllerRef
**What this PR does / why we need it**:
This is part of the completion of the [ControllerRef](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/controller-ref.md) proposal. It brings DaemonSet into full compliance with ControllerRef. See the individual commit messages for details.
**Which issue this PR fixes**:
This ensures that DaemonSet does not fight with other controllers over control of Pods.
**Special notes for your reviewer**:
**Release note**:
```release-note
DaemonSet now respects ControllerRef to avoid fighting over Pods.
```
cc @erictune @kubernetes/sig-apps-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 42692, 42169, 42173)
Add pprof trace support
Add support for `/debug/pprof/trace`
Can wait for master to reopen for 1.7.
cc @smarterclayton @wojtek-t @gmarek @timothysc @jeremyeder @kubernetes/sig-scalability-pr-reviews
The design of DaemonSet requires a relist before each phase (manage,
update, status) because it does not short-circuit and requeue for each
action triggered.
The DaemonSet Listers still use selectors, because this is the
behavior expected by callers. This clarifies the meaning of the
returned list. Some callers may need to switch to using
GetControllerOf() instead, but that is a separate, case-by-case issue.
We don't need the svcPortToInfoMap. Its only purpose was to
send "valid" local endpoints (those with valid IP and >0 port) to the
health checker. But we shouldn't be sending invalid endpoints to
the health checker anyway, because it can't do anything with them.
If we exclude invalid endpoints earlier, then we don't need
flattenValidEndpoints().
And if we don't need flattenValidEndpoints() it makes no sense to have
svcPortToInfoMap store hostPortInfo, since endpointsInfo is the same
thing as hostPortInfo except with a combined host:port.
And if svcPortToInfoMap now only stores valid endpointsInfos, it is
exactly the same thing as newEndpoints.
* Properly return ImageNotFoundError
* Support inject "Images" or "ImageInspects" and keep both in sync.
* Remove the FakeDockerPuller and let FakeDockerClient subsumes its
functinality. This reduces the overhead to maintain both objects.
* Various small fixes and refactoring of the testing utils.
Automatic merge from submit-queue (batch tested with PRs 41890, 42593, 42633, 42626, 42609)
Pods pending due to insufficient OIR should get scheduled once sufficient OIR becomes available (e2e disabled).
#41870 was reverted because it introduced an e2e test flake. This is the same code with the e2e for OIR disabled again.
We can attempt to enable the e2e test cases one-by-one in follow-up PRs, but it would be preferable to get the main fix merged in time for 1.6 since OIR is broken on master (see #41861).
cc @timothysc
Automatic merge from submit-queue (batch tested with PRs 41890, 42593, 42633, 42626, 42609)
Remove everything that is not new from batch/v2alpha1
Fixes#37166.
@lavalamp you've asked for it
@erictune this is a prereq for moving CronJobs to beta. I initially planned to put all in one PR, but after I did that I figured out it'll be easier to review separately. ptal
@kubernetes/api-approvers @kubernetes/sig-api-machinery-pr-reviews ptal
Automatic merge from submit-queue (batch tested with PRs 42506, 42585, 42596, 42584)
RC/RS: Fix ignoring inactive Pods.
**What this PR does / why we need it**:
Fix typo that broke ignoring of inactive Pods in RC, and add unit test for that case.
**Which issue this PR fixes**:
Fixes#37479
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 42506, 42585, 42596, 42584)
provide active pods to cgroup cleanup
**What this PR does / why we need it**:
This PR provides more information for when a pod cgroup is considered orphaned. The running pods cache is based on the runtime's view of the world. we create pod cgroups before containers so we should just be looking at activePods.
**Which issue this PR fixes**
Fixes https://github.com/kubernetes/kubernetes/issues/42431
Automatic merge from submit-queue
cgroup names created by kubelet should be lowercased
**What this PR does / why we need it**:
This PR modifies the kubelet to create cgroupfs names that are lowercased. This better aligns us with the naming convention for cgroups v2 and other cgroup managers in ecosystem (docker, systemd, etc.)
See: https://www.kernel.org/doc/Documentation/cgroup-v2.txt
"2-6-2. Avoid Name Collisions"
**Special notes for your reviewer**:
none
**Release note**:
```release-note
kubelet created cgroups follow lowercase naming conventions
```
Automatic merge from submit-queue (batch tested with PRs 42080, 41653, 42598, 42555)
Revert "Pods pending due to insufficient OIR should get scheduled once sufficient OIR becomes available."
Reverts kubernetes/kubernetes#41870 for stopping bleeding edge: #42597
cc/ @ConnorDoyle @kubernetes/release-team
Connor if there is a pending pr to fix the issue, please point it out to me. We can close this one, otherwise, I would like to revert the pr first. You can resubmit the fix. Thanks!
Automatic merge from submit-queue (batch tested with PRs 42080, 41653, 42598, 42555)
StatefulSet: Respect ControllerRef
**What this PR does / why we need it**:
This is part of the completion of the [ControllerRef](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/controller-ref.md) proposal. It brings StatefulSet into full compliance with ControllerRef. See the individual commit messages for details.
**Which issue this PR fixes**:
Fixes#36859
**Special notes for your reviewer**:
**Release note**:
```release-note
StatefulSet now respects ControllerRef to avoid fighting over Pods. At the time of upgrade, **you must not have StatefulSets with selectors that overlap** with any other controllers (such as ReplicaSets), or else [ownership of Pods may change](https://github.com/kubernetes/community/blob/master/contributors/design-proposals/controller-ref.md#upgrading).
```
cc @erictune @kubernetes/sig-apps-pr-reviews
