Scheduler extender

[cofyc]

Enhancement Description

• One-line enhancement description (can be used as a release note): extension mechanism that allows external webhook to be registered to extend scheduler
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/tree/master/keps/sig-scheduling/1819-scheduler-extender
• Primary contact (assignee): @cofyc
• Responsible SIGs: sig-scheduling
• Enhancement target (which target equals to which milestone): implemented
  • Alpha release target (x.y)
  • Beta release target (x.y)
  • Stable release target (x.y)

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

NOTE:

• We need to convert scheduler extender design proposal in community repo to a KEP, then future changes can be submitted to this repo
  • the first author is @ravigadde, Scheduler extension kubernetes#13580 and Added Bind method to Scheduler Extender kubernetes#44883

related issues:

• scheduler/extender: extend the current ExtenderFilterResult struct to include node status kubernetes#91281 (comment)
• Update scheduler extender API to be better defined kubernetes#88634

[cofyc]

/sig scheduling

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

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

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale

[cofyc]

/lifecycle frozen

[fejta-bot]

Enhancement issues opened in kubernetes/enhancements should never be marked as frozen.
Enhancement Owners can ensure that enhancements stay fresh by consistently updating their states across release cycles.

/remove-lifecycle frozen

[kikisdeliveryservice]

Related PR: #2132