Respect PodTopologySpread after rolling upgrades

[denkensk]

Enhancement Description

• One-line enhancement description (can be used as a release note): Respect PodTopologySpread after rolling upgrades
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/blob/master/keps/sig-scheduling/3243-respect-pod-topology-spread-after-rolling-upgrades/README.md
• Discussion Link: https://docs.google.com/document/d/12F1YXsvy4SmumPiL3LHMLnuMHvyMqSzDqF-L9J37ZfA/edit?usp=sharing
• Primary contact (assignee): @denkensk
• Responsible SIGs: /sig scheduling
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.25
  • Beta release target (x.y): 1.27
  • Stable release target (x.y): 1.38?
• Alpha
  • KEP (k/enhancements) update PR(s): KEP-3243: respect pod topology spread after rolling upgrades #3244
  • Code (k/k) update PR(s): Respect PodTopologySpread after rolling upgrades kubernetes#111441
  • Docs (k/website) update PR(s): Add docs for MatchLabelKeysInPodTopologySpread feature website#35165
• Beta
  • KEP (k/enhancements) update PR(s): KEP-3243: Graduate MatchLabelKeys In PodTopologySpread to beta #3740
  • Code (k/k) update PR(s):
    • feat: graduate matchLabelKeys in podTopologySpread to beta kubernetes#116291
    • Change the implementation design of matchLabelKeys in PodTopologySpread to be aligned with PodAffinity kubernetes#129874
  • Docs (k/website) update(s):
    • doc: graduate matchLabelKeys in podTopologySpread to beta website#39826
    • Update the description of PodTopologySpread matchLabelKeys implementation change since v1.34 website#51119

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

[denkensk]

/sig scheduling

[denkensk]

/assign

[ahg-g]

/milestone v1.25

[Priyankasaggu11929]

Hello @denkensk 👋, 1.25 Enhancements team here.

Just checking in as we approach enhancements freeze on 18:00 PST on Thursday June 23, 2022.

For note, This enhancement is targeting for stage alpha for 1.25 (correct me, if otherwise)

Here's where this enhancement currently stands:

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

For note, the status of this enhancement is marked as tracked. Please keep the issue description up-to-date with appropriate stages as well. Thank you!

[Atharva-Shinde]

Hi @denkensk Enhancements team here again 👋

Checking in as we approach Code Freeze at 01:00 UTC on Wednesday, 3rd August 2022.

Please ensure that the following items are completed before the code-freeze:

• All PRs to the Kubernetes repo that are related to your enhancement are linked in the above issue description (for tracking purposes).
• All PRs are fully merged by the code freeze deadline.

Currently, the status of the enhancement is marked as at-risk

Thanks :)

[Atharva-Shinde]

Hey @denkensk as kubernetes/kubernetes#111441 PR is now merged and included in the issue description, I have marked this enhancement as tracked :)

[ahg-g]

@denkensk can you please open a docs PR?

[denkensk]

Sorry. I created it before, forgot to link it with this issue. kubernetes/website#35165