Bug 1971537: Support cgroups v2

[cardil]

In code there are embedded paths that are valid only for cgroups v1. This PR creates functions that calculate memory in container either for v1 or v2 of cgroups.

[olivergondza]

/assign @akashshinde

[waveywaves]

/unassign akashshinde

[waveywaves]

/assign

[waveywaves]

@cardil Thank you for the contribution. As you have mentioned that we support cgroupsv1 only, based on the same I will review this for v2 support.
cc @akram

[olivergondza]

@waveywaves, just to clarify I understand, do you mean this will be postponed and addressed as a part of some larger effort later? I am asking to set some expectation on when this can get integrated. Thanks!

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: cardil
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You can assign the PR to them by writing /assign @waveywaves in a comment when ready.

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[akram]

thanks @cardil for this contribution. We need more time to test it ; as it seem non-intrusive for OpenShift, it could be merged hopefully.
Please not that for now we don't support cgroups v2 in OpenShift.

[akram]

/retitle [main] Support cgroups v2 (Podman on Fedora 31)

[akram]

/retitle [head] Support cgroups v2 (Podman on Fedora 31)

[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale.
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Exclude this issue from closing by commenting /lifecycle frozen.

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/lifecycle stale

[cardil]

/remove-lifecycle stale

[openshift-bot]

Issues go stale after 90d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.
Exclude this issue from closing by commenting /lifecycle frozen.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[openshift-bot]

Stale issues rot after 30d of inactivity.

Mark the issue as fresh by commenting /remove-lifecycle rotten.
Rotten issues close after an additional 30d of inactivity.
Exclude this issue from closing by commenting /lifecycle frozen.

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/lifecycle rotten
/remove-lifecycle stale

[cardil]

/remove-lifecycle rotten

[akram]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: akram, cardil

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[akram]

/retitle Bug 1971537: Support cgroups v2

[openshift-ci]

@cardil: This pull request references Bugzilla bug 1971537, which is invalid:

• expected the bug to target the "4.9.0" release, but it targets "---" instead

Comment /bugzilla refresh to re-evaluate validity if changes to the Bugzilla bug are made, or edit the title of this pull request to link to a different bug.

In response to this:

Bug 1971537: Support cgroups v2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openshift-bot]

/bugzilla refresh

Recalculating validity in case the underlying Bugzilla bug has changed.

[openshift-ci]

@openshift-bot: This pull request references Bugzilla bug 1971537, which is invalid:

• expected the bug to target the "4.9.0" release, but it targets "---" instead

Comment /bugzilla refresh to re-evaluate validity if changes to the Bugzilla bug are made, or edit the title of this pull request to link to a different bug.

In response to this:

/bugzilla refresh

Recalculating validity in case the underlying Bugzilla bug has changed.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[akram]

/bugzilla refresh

[openshift-ci]

@akram: This pull request references Bugzilla bug 1971537, which is valid. The bug has been moved to the POST state. The bug has been updated to refer to the pull request using the external bug tracker.

3 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target release (4.9.0) matches configured target release for branch (4.9.0)
• bug is in the state NEW, which is one of the valid states (NEW, ASSIGNED, ON_DEV, POST, POST)

Requesting review from QA contact:
/cc @jitendar-singh

In response to this:

/bugzilla refresh

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[akram]

/retest

[akram]

/test images
/retest

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci]

@cardil: All pull requests linked via external trackers have merged:

• openshift/jenkins#1019

Bugzilla bug 1971537 has been moved to the MODIFIED state.

In response to this:

Bug 1971537: Support cgroups v2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.