KEP-1591keps/sig-apps/1591-daemonset-surge

Allow DaemonSets to surge during update like Deployments

implementablestablesig-appslatest v1.251 open finding

KEP on GitHub kep.yaml Ask about this KEP

Daemonsets allow two update strategies - OnDelete which only replaces pods when they are deleted and RollingUpdate which supports MinAvailable like Deployments but not Surge. Daemonsets should support Surge in order to minimize DaemonSet downtime on nodes. This will allow daemonset workloads to implement zero-downtime upgrades.

Facts

Authors: @smarterclayton
Approvers: @soltysh @kow3ns @janetkuo
Reviewers: @soltysh @kow3ns @janetkuo
PRR approvers: @wojtek-tstable@ehashmanbeta@deads2kalpha
Tracking issue: #1591(opens GitHub in a new tab) closedcompletedclosed 2023-01-12 16:38 UTCmilestone v1.25sig/appssig/nodesig/schedulingstage/stablekind/feature
Milestones: alpha v1.21beta v1.22stable v1.25
Participating SIGs: sig-scheduling sig-node
Feature gates: DaemonSetUpdateSurge
Created / last updated: 2020-03-02 / 2022-05-10

Who decided each state, with the evidence.
Decided	Decision	Deciders	Evidence
2020-10-05 18:13 UTC	stage_graduation KEP-1591 set milestone.alpha to v1.20 in PR #1590, approved by soltysh, tnozicka, mattfarina; merged by automation (k8s-ci-robot) on 2020-10-05.	@mattfarina approve_command @soltysh approver @soltysh lgtm @tnozicka approver @tnozicka approve_command @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@2996c019ad7fc440d1baa4ad0e4c2469a930a86e(opens GitHub in a new tab) StatusChange milestone.alpha ∅ → v1.20 (2020-03-02)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#1590 DaemonSets should allow MaxSurge to minimize workload downtime during upgrade(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/502220514(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/500192230(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/703799499(opens GitHub in a new tab)
2020-10-05 18:13 UTC	stage_graduation KEP-1591 set milestone.beta to v1.21 in PR #1590, approved by soltysh, tnozicka, mattfarina; merged by automation (k8s-ci-robot) on 2020-10-05.	@mattfarina approve_command @soltysh approver @soltysh lgtm @tnozicka approver @tnozicka approve_command @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@2996c019ad7fc440d1baa4ad0e4c2469a930a86e(opens GitHub in a new tab) StatusChange milestone.beta ∅ → v1.21 (2020-03-02)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#1590 DaemonSets should allow MaxSurge to minimize workload downtime during upgrade
2020-10-05 18:13 UTC	stage_graduation KEP-1591 set milestone.stable to v1.23 in PR #1590, approved by soltysh, tnozicka, mattfarina; merged by automation (k8s-ci-robot) on 2020-10-05.	@mattfarina approve_command @soltysh approver @soltysh lgtm @tnozicka approver @tnozicka approve_command @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@2996c019ad7fc440d1baa4ad0e4c2469a930a86e(opens GitHub in a new tab) StatusChange milestone.stable ∅ → v1.23 (2020-03-02)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#1590 DaemonSets should allow MaxSurge to minimize workload downtime during upgrade
2020-10-05 18:13 UTC	status_transition KEP-1591 status set to implementable in PR #1590, approved by soltysh, tnozicka, mattfarina; merged by automation (k8s-ci-robot) on 2020-10-05.	@mattfarina approve_command @soltysh approver @soltysh lgtm @tnozicka approver @tnozicka approve_command @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@2996c019ad7fc440d1baa4ad0e4c2469a930a86e(opens GitHub in a new tab) StatusChange status ∅ → implementable (2020-03-02)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#1590 DaemonSets should allow MaxSurge to minimize workload downtime during upgrade
2021-02-03 19:02 UTC	prr_approval deads2k gave the production readiness approval for KEP-1591 at alpha on 2021-02-03.	@deads2k prr_approver	Document 1591.yaml(opens GitHub in a new tab)
2021-02-09 18:09 UTC	milestone_retarget KEP-1591 latest-milestone moved from v1.20 to v1.21 in PR #2416, approved by soltysh, deads2k, dims; merged by automation (k8s-ci-robot) on 2021-02-09.	@dims approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @deads2k approve_command @deads2k lgtm @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@19917d6705249c6e399363c6e110b30e3e581606(opens GitHub in a new tab) StatusChange latest_milestone v1.20 → v1.21 (2021-02-03)(opens GitHub in a new tab)
2021-02-09 18:09 UTC	milestone_retarget KEP-1591 milestone.alpha moved from v1.20 to v1.21 in PR #2416, approved by soltysh, deads2k, dims; merged by automation (k8s-ci-robot) on 2021-02-09.	@dims approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @deads2k approve_command @deads2k lgtm @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@19917d6705249c6e399363c6e110b30e3e581606(opens GitHub in a new tab) StatusChange milestone.alpha v1.20 → v1.21 (2021-02-03)(opens GitHub in a new tab) PullRequest
2021-02-09 18:09 UTC	milestone_retarget KEP-1591 milestone.beta moved from v1.21 to v1.22 in PR #2416, approved by soltysh, deads2k, dims; merged by automation (k8s-ci-robot) on 2021-02-09.	@dims approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @deads2k approve_command @deads2k lgtm @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@19917d6705249c6e399363c6e110b30e3e581606(opens GitHub in a new tab) StatusChange milestone.beta v1.21 → v1.22 (2021-02-03)(opens GitHub in a new tab) PullRequest
2021-02-09 18:09 UTC	milestone_retarget KEP-1591 milestone.stable moved from v1.23 to v1.24 in PR #2416, approved by soltysh, deads2k, dims; merged by automation (k8s-ci-robot) on 2021-02-09.	@dims approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @deads2k approve_command @deads2k lgtm @smarterclayton author @k8s-ci-robot merger	Commit kubernetes/enhancements@19917d6705249c6e399363c6e110b30e3e581606(opens GitHub in a new tab) StatusChange milestone.stable v1.23 → v1.24 (2021-02-03)(opens GitHub in a new tab)
2021-05-05 19:23 UTC	stage_graduation KEP-1591 graduated to alpha in PR #2672, approved by johnbelamaric; merged by automation (k8s-ci-robot) on 2021-05-05.	@ehashman author @johnbelamaric approve_command @johnbelamaric lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@f343d8b94f8b83e8496ae42313f1290c1767bba6(opens GitHub in a new tab) StatusChange stage ∅ → alpha (2021-05-05)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2672 Make PRR metadata required(opens GitHub in a new tab) Comment kubernetes/enhancements/issues/comments/832947166
2021-05-06 21:46 UTC	prr_approval ehashman gave the production readiness approval for KEP-1591 at beta on 2021-05-06.	@ehashman prr_approver	Document 1591.yaml(opens GitHub in a new tab)
2021-05-11 18:54 UTC	milestone_retarget KEP-1591 latest-milestone moved from v1.21 to v1.22 in PR #2665, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-05-11.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@e749751b112738c6d36ad1ff935c03c5f51fb6e7(opens GitHub in a new tab) StatusChange latest_milestone v1.21 → v1.22 (2021-05-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2665 Graduate DS maxSurge to beta
2021-05-11 18:54 UTC	stage_graduation KEP-1591 graduated to beta from alpha in PR #2665, approved by ehashman, soltysh; merged by automation (k8s-ci-robot) on 2021-05-11.	@ehashman approver @ehashman approve_command @soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@e749751b112738c6d36ad1ff935c03c5f51fb6e7(opens GitHub in a new tab) StatusChange stage alpha → beta (2021-05-06)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#2665 Graduate DS maxSurge to beta
2022-05-10 18:50 UTC	prr_approval wojtek-t gave the production readiness approval for KEP-1591 at stable on 2022-05-10.	@wojtek-t prr_approver	Document 1591.yaml(opens GitHub in a new tab)
2022-06-10 14:31 UTC	milestone_retarget KEP-1591 milestone.stable moved from v1.24 to v1.25 in PR #3307, approved by soltysh; merged by automation (k8s-ci-robot) on 2022-06-10.	@soltysh approver @soltysh approve_command @soltysh lgtm @ravisantoshgudimetla author @k8s-ci-robot merger	Commit kubernetes/enhancements@f406357ffd5e716d26fc1a765ab4e40475bc8049(opens GitHub in a new tab) StatusChange milestone.stable v1.24 → v1.25 (2022-05-10)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3307 KEP-1591: Promote DS maxSurge to GA(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/1002881274
2023-03-24 15:52 UTC	milestone_retarget KEP-1591 latest-milestone moved from v1.22 to v1.25 in PR #3921, approved by ravisantoshgudimetla; merged by automation (k8s-ci-robot) on 2023-03-24.	@soltysh author @ravisantoshgudimetla approver @ravisantoshgudimetla lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@cf4d946efe73a8e1e0a51c32584d1cde41156cb7(opens GitHub in a new tab) StatusChange latest_milestone v1.22 → v1.25 (2023-03-24)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3921 KEP 1591: Update metadata to reflect reality(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/1356992932
2023-03-24 15:52 UTC	stage_graduation KEP-1591 graduated to stable from beta in PR #3921, approved by ravisantoshgudimetla; merged by automation (k8s-ci-robot) on 2023-03-24.	@soltysh author @ravisantoshgudimetla approver @ravisantoshgudimetla lgtm @k8s-ci-robot merger	Commit kubernetes/enhancements@cf4d946efe73a8e1e0a51c32584d1cde41156cb7(opens GitHub in a new tab) StatusChange stage beta → stable (2023-03-24)(opens GitHub in a new tab) PullRequest kubernetes/enhancements#3921 KEP 1591: Update metadata to reflect reality(opens GitHub in a new tab) Review kubernetes/enhancements/pulls/reviews/1356992932

Metadata, label and milestone changes, oldest first.Showing 1–10 of 68Rows

Status history
At	Kind	Field	Change	Actor	Evidence
2020-03-02 21:55 UTC	metadata	approvers set	none → ["janetkuo","kow3ns"]	none	2996c01(opens GitHub in a new tab)PR #1590(opens GitHub in a new tab)
2020-03-02 21:55 UTC	metadata	authors set	→ ["smarterclayton"]

Relationships as stored, Person → KEP, from kep.yaml(opens GitHub in a new tab)
Person	Relationship
@smarterclayton GitHub(opens GitHub in a new tab)	—AUTHORED→
@soltysh GitHub(opens GitHub in a new tab)	—REVIEWS→
@kow3ns GitHub(opens GitHub in a new tab)	—REVIEWS→
@janetkuo

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Allow DaemonSets to surge during update like Deployments

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