KEP-3022keps/sig-scheduling/3022-min-domains-in-pod-topology-spread

Tuning the number of domains in PodTopologySpread

implementedstablesig-schedulinglatest v1.30

KEP on GitHub kep.yaml Ask about this KEP

A new field minDomains is introduced to PodSpec.TopologySpreadConstraint[*] to limit the minimum number of topology domains. minDomains can be used only when whenUnsatisfiable=DoNotSchedule.

Facts

Authors: @sanposhiho
Approvers: @alculquicondor @huang-wei
Reviewers: @alculquicondor @huang-wei @x13n
PRR approvers: @wojtek-talpha@wojtek-tstable@johnbelamaricbeta
Tracking issue: #3022(opens GitHub in a new tab) closedcompletedclosed 2024-04-23 00:17 UTCmilestone v1.30sig/schedulingstage/stable
Milestones: alpha v1.24beta v1.25stable v1.30
Participating SIGs: sig-autoscaling
Feature gates: MinDomainsInPodTopologySpread
Created / last updated: 2021-10-28 / none

Who decided each state, with the evidence.
Decided	Decision	Deciders	Evidence
2021-11-01 22:23 UTC	prr_approval wojtek-t gave the production readiness approval for KEP-3022 at alpha on 2021-11-01.	@wojtek-t prr_approver	Document 3022.yaml(opens GitHub in a new tab)
2022-01-14 14:53 UTC	stage_graduation KEP-3022 set milestone.alpha to v1.24 in PR #3030, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2022-01-14.	@alculquicondor approve_command @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f14bfee34358d8e946a5b109e73b7779d531674d(opens GitHub in a new tab) StatusChange milestone.alpha ∅ → v1.24 (2021-11-01)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3030 KEP-3022: Min domains in PodTopologySpread(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1013193563(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1012241359(opens GitHub in a new tab)
2022-01-14 14:53 UTC	stage_graduation KEP-3022 set milestone.beta to v1.25 in PR #3030, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2022-01-14.	@alculquicondor approve_command @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f14bfee34358d8e946a5b109e73b7779d531674d(opens GitHub in a new tab) StatusChange milestone.beta ∅ → v1.25 (2021-11-01)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3030 KEP-3022: Min domains in PodTopologySpread(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1013193563
2022-01-14 14:53 UTC	stage_graduation KEP-3022 set milestone.stable to v1.26 in PR #3030, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2022-01-14.	@alculquicondor approve_command @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f14bfee34358d8e946a5b109e73b7779d531674d(opens GitHub in a new tab) StatusChange milestone.stable ∅ → v1.26 (2021-11-01)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3030 KEP-3022: Min domains in PodTopologySpread(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1013193563
2022-01-14 14:53 UTC	stage_graduation KEP-3022 graduated to alpha in PR #3030, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2022-01-14.	@alculquicondor approve_command @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f14bfee34358d8e946a5b109e73b7779d531674d(opens GitHub in a new tab) StatusChange stage ∅ → alpha (2021-11-01)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3030 KEP-3022: Min domains in PodTopologySpread(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1013193563
2022-01-14 14:53 UTC	status_transition KEP-3022 status set to implementable in PR #3030, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2022-01-14.	@alculquicondor approve_command @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f14bfee34358d8e946a5b109e73b7779d531674d(opens GitHub in a new tab) StatusChange status ∅ → implementable (2021-11-01)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3030 KEP-3022: Min domains in PodTopologySpread(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/1013193563
2022-06-14 12:55 UTC	prr_approval johnbelamaric, wojtek-t gave the production readiness approval for KEP-3022 at beta on 2022-06-14.	@wojtek-t prr_approver @johnbelamaric prr_approver	Document 3022.yaml(opens GitHub in a new tab) Commit kubernetes/enhancements@ad9b01c54cd5573f1867ebd895be6e1d5339ef11(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3338 [KEP-3022] Write the production readiness requirements to graduate to beta(opens GitHub in a new tab)
2022-06-22 15:13 UTC	milestone_retarget KEP-3022 latest-milestone moved from v1.24 to v1.25 in PR #3338, approved by alculquicondor, johnbelamaric; merged by automation (k8s-ci-robot) on 2022-06-22.	@alculquicondor approve_command @alculquicondor lgtm @sanposhiho author @johnbelamaric approve_command @k8s-ci-robot merger	Commit kubernetes/enhancements@ad9b01c54cd5573f1867ebd895be6e1d5339ef11(opens GitHub in a new tab) StatusChange latest_milestone v1.24 → v1.25 (2022-06-14)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3338 [KEP-3022] Write the production readiness requirements to graduate to beta(opens GitHub in a new tab)
2022-06-22 15:13 UTC	stage_graduation KEP-3022 graduated to beta from alpha in PR #3338, approved by alculquicondor, johnbelamaric; merged by automation (k8s-ci-robot) on 2022-06-22.	@alculquicondor approve_command @alculquicondor lgtm @sanposhiho author @johnbelamaric approve_command @k8s-ci-robot merger	Commit kubernetes/enhancements@ad9b01c54cd5573f1867ebd895be6e1d5339ef11(opens GitHub in a new tab) StatusChange stage alpha → beta (2022-06-14)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3338 [KEP-3022] Write the production readiness requirements to graduate to beta(opens GitHub in a new tab)
2024-01-15 14:04 UTC	prr_approval wojtek-t gave the production readiness approval for KEP-3022 at stable on 2024-01-15.	@wojtek-t prr_approver	Document 3022.yaml(opens GitHub in a new tab)
2024-02-07 07:35 UTC	milestone_retarget KEP-3022 latest-milestone moved from v1.25 to v1.30 in PR #4407, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2024-02-07.	@alculquicondor approve_command @alculquicondor lgtm @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@3025bc94808a4448aee3f31f4a35c3db426273df(opens GitHub in a new tab) StatusChange latest_milestone v1.25 → v1.30 (2024-01-15)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#4407 KEP-3022: graduate Pod Topology Spread MinDomains to stable(opens GitHub in a new tab) Review
2024-02-07 07:35 UTC	stage_graduation KEP-3022 set milestone.stable to v1.30 in PR #4407, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2024-02-07.	@alculquicondor approve_command @alculquicondor lgtm @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@3025bc94808a4448aee3f31f4a35c3db426273df(opens GitHub in a new tab) StatusChange milestone.stable ∅ → v1.30 (2024-01-15)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#4407 KEP-3022: graduate Pod Topology Spread MinDomains to stable(opens GitHub in a new tab) Review
2024-02-07 07:35 UTC	stage_graduation KEP-3022 graduated to stable from beta in PR #4407, approved by alculquicondor; merged by automation (k8s-ci-robot) on 2024-02-07.	@alculquicondor approve_command @alculquicondor lgtm @sanposhiho author @wojtek-t lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@3025bc94808a4448aee3f31f4a35c3db426273df(opens GitHub in a new tab) StatusChange stage beta → stable (2024-01-15)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#4407 KEP-3022: graduate Pod Topology Spread MinDomains to stable(opens GitHub in a new tab) Review
2024-03-07 15:03 UTC	status_transition KEP-3022 status changed from implementable to implemented in PR #4543, approved by ahg-g, alculquicondor; merged by automation (k8s-ci-robot) on 2024-03-07.	@alculquicondor approve_command @alculquicondor lgtm @ahg-g approve_command @ahg-g lgtm @sanposhiho author @k8s-ci-robot merger	Commit kubernetes/enhancements@d48b275bd0f3f0a14d3f9b54366d8a4583a980b4(opens GitHub in a new tab) StatusChange status implementable → implemented (2024-03-07)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#4543 Update the status of KEP-3022

Metadata, label and milestone changes, oldest first.Showing 1–10 of 43Rows

Status history
At	Kind	Field	Change	Actor	Evidence
2021-10-28 03:47 UTC	label	needs-sig added	none → needs-sig	@k8s-ci-robot	source(opens GitHub in a new tab)
2021-10-28 03:47 UTC	label	sig/scheduling added	none → sig/scheduling	@k8s-ci-robot	source

Relationships as stored, Person → KEP, from kep.yaml(opens GitHub in a new tab)
Person	Relationship
@sanposhiho GitHub(opens GitHub in a new tab)	—AUTHORED→
@alculquicondor GitHub(opens GitHub in a new tab)	—REVIEWS→
@huang-wei GitHub(opens GitHub in a new tab)	—REVIEWS→
@x13n

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Tuning the number of domains in PodTopologySpread

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