Robust VolumeManager reconstruction after kubelet restart

[jsafrane]

Enhancement Description

• One-line enhancement description (can be used as a release note): Robust VolumeManager reconstruction after kubelet restart.
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/3756-volume-reconstruction
• Discussion Link:
  • Orphaned pod found, but error not a directory occurred when trying to remove the volumes dir kubernetes#105536 (comment)
• Primary contact (assignee): @jsafrane
• Responsible SIGs: sig-storage
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.26 (as part of https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/1710-selinux-relabeling)
  • Beta release target (x.y): 1.27
  • Stable release target (x.y): TBD
• Beta
  • KEP (k/enhancements) update PR(s):
    • KEP-3756: Add volume reconstruction KEP #3763
  • Code (k/k) update PR(s):
    • Split volume reconstruction refactoring from SELinuxMountReadWriteOncePod kubernetes#115268
    • Add metric for failed orphan pod cleanup kubernetes#115972
    • Add volume reconstruction metrics kubernetes#115965
  • Docs (k/website) update(s): Add docs for VolumeManager reconstruction after kubelet restart website#40038
• Stable
  • KEP (k/enhancements) update PR(s): Graduate NewVolumeManagerReconstruction GA #4432
  • Code (k/k) update PR(s): KEP 3756: Mark NewVolumeManagerReconstruction as GA kubernetes#123442
  • Docs (k/website) update(s): Mark NewVolumeManagerReconstruction as GA website#45282

Please keep this description up to date. This will help the Enhancement Team to track the evolution of the enhancement efficiently.

[jsafrane]

/sig storage

[jsafrane]

/label lead-opted-in
/milestone v1.27
/stage alpha

[npolshakova]

Hello @jsafrane 👋, 1.27 Enhancements team here.

Just checking in as we approach enhancements freeze on 18:00 PDT Thursday 9th February 2023.

This enhancement is targeting for stage alpha for 1.27 (correct me, if otherwise)

Here's where this enhancement currently stands:

• KEP readme using the latest template has been merged into the k/enhancements repo.
• KEP status is marked as implementable for latest-milestone: 1.27
• KEP readme has a updated detailed test plan section filled out
• KEP readme has up to date graduation criteria
• KEP has a production readiness review that has been completed and merged into k/enhancements.

It looks like #3763 will address most of these issues.

The status of this enhancement is marked as at risk. Please keep the issue description up-to-date with appropriate stages as well. Thank you!

[jsafrane]

This enhancement is targeting for stage alpha for 1.27 (correct me, if otherwise)

We're targeting Beta directly, we had alpha as part of https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/1710-selinux-relabeling

And the KEP is merged, together with PRR approval, I think everything is fine for 1.27

[npolshakova]

Great! This enhancement meets all the requirements for being included in v1.27 and is now tracked for the release.

One thing to note, make sure to update the PRR section in the KEP README.

/stage beta
/remove-label tracked/no
/label tracked/yes