Allow zero value for Sleep Action of PreStop Hook

[sreeram-venkitesh]

Enhancement Description

• One-line enhancement description (can be used as a release note): Allows PreStop lifecycle handler's sleep action to have a zero value
• Kubernetes Enhancement Proposal: WIP: https://docs.google.com/document/d/1o01gH2ELPY-kjwgemjg3BbWiykx37ag-4VYwwJ1jBTw/edit?usp=sharing
• Discussion Link: Discussion in the GitHub thread of original KEP.
• Primary contact (assignee): @sreeram-venkitesh
• Responsible SIGs: sig-node
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.32
  • Beta release target (x.y):
  • Stable release target (x.y):
• Alpha
  • KEP (k/enhancements) update PR(s): KEP-4818: Allow zero value for Sleep Action of PreStop Hook #4855
  • Code (k/k) update PR(s): KEP-4818: Relaxed validation for allowing zero in PreStop hook sleep action kubernetes#127094
  • Docs (k/website) update PR(s):

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

[sreeram-venkitesh]

/sig node

[SergeyKanzhelev]

/milestone v1.32
/label lead-opted-in

[kannon92]

Based on @SergeyKanzhelev comments, I think we can move this to be "Considered For Release".

[impact-maker]

Hello @sreeram-venkitesh 👋, Enhancements team here.

Just checking in as we approach enhancements freeze on 02:00 UTC Friday 11th October 2024 / 19:00 PDT Thursday 10th October 2024.

This enhancement is targeting for stage alpha for v1.32 (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: v1.32.
• KEP readme has up-to-date graduation criteria
• KEP has a production readiness review that has been completed and merged into k/enhancements. (For more information on the PRR process, check here). If your production readiness review is not completed yet, please make sure to fill the production readiness questionnaire in your KEP by the PRR Freeze deadline on Thursday, October 3rd, 2024 so that the PRR team has enough time to review your KEP.

For this KEP, we would just need to update the following:

• KEP has a production readiness review that has been merged into k/enhancements.
  The status of this enhancement is marked as at risk for enhancement freeze. Please keep the issue description up-to-date with appropriate stages as well.

If you anticipate missing enhancements freeze, you can file an exception request in advance. Thank you!

[sreeram-venkitesh]

Thanks @impact-maker, the enhancements PR is already reviewed by the PRR team, I will resolve the comments and get it merged soon.