Guarantee PodDisruptionBudget When Preemption Happens

[AxeZhan]

Enhancement Description

• One-line enhancement description (can be used as a release note): Guarantee PodDisruptionBudget When Preemption Happens
• Kubernetes Enhancement Proposal: https://docs.google.com/document/d/1g2wj8S04M0yTy2t4l4GzrdARtxBpkBTfkJHw0oqBvXM/edit?usp=sharing
• Discussion Link: Priority-based preemption can easily violate PDBs even when unnecessary due to multiple issues with the implementation kubernetes#91492 (comment)
• Primary contact (assignee): @AxeZhan
• Responsible SIGs: sig-scheduling
• Enhancement target (which target equals to which milestone):
  • Alpha release target (x.y): 1.31
  • Beta release target (x.y): TBD
  • Stable release target (x.y): TBD
• Alpha
  • KEP (k/enhancements) update PR(s):
    • KEP-3280: Guarantee PodDisruptionBudget When Preemption Happens #3755
    • KEP4664: Guarantee PodDisruptionBudget When Preemption Happens #4665
  • Code (k/k) update PR(s):
  • 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.

Notice that this KEP is not a whole new KEP. It only took over #3280.
This new issue is created for better tracking(I can't update the old issue😢)

[AxeZhan]

/sig scheduling

[atiratree]

Can you please also transfer all the links to this issue description from the original issue?