maxUnavailable for StatefulSets

[krmayankk]

Enhancement Description

• One-line enhancement description (can be used as a release note): Implement maxUnavailable for StatefulSets
• Kubernetes Enhancement Proposal: https://github.com/kubernetes/enhancements/blob/master/keps/sig-apps/961-maxunavailable-for-statefulset/README.md
• Enhancement target (which target equals to which milestone):
  • Alpha - v1.24
    • KEP (k/enhancements) update PR(s): add initial KEP for maxUnavailable in StatefulSets #678 update proposal for maxUnavailable for statefulsets #1010 Add PRR information for maxUnavailable #2688 KEP: 961: Updating release info maxUnavailable for StatefulSet #2889 KEP-961: Update release information for maxUnavailable #3100
    • Code (k/k) update PR(s): API: maxUnavailable for StatefulSet kubernetes#82162
    • Docs (k/website) update PR(s): Document the MaxUnavailableStatefulSet feature website#32596
  • Beta - v1.35
    • KEP (k/enhancements) update PR(s):
      • KEP-961: Bump Statefulset maxUnavailable to beta #3997
      • KEP-961: Bump Statefulset maxUnavailable to beta (built on top of #3997) #4474
      • KEP-961: Bump Statefulset MaxUnavailable to beta (built on top of #4474) #5228
      • KEP-961: Update test links and metrics for beta release #5506
    • Code (k/k) update PR(s):
      • Fix StatefulSetMinReadySeconds healthy concept kubernetes#130909
      • Adding metrics for Maxunavailable feature in StatefulSet kubernetes#130951
      • Add e2e test for MaxUnavailable StatefulSet RollingUpdate kubernetes#133717
      • Update MaxUnavailableStatefulSet feature gate to beta kubernetes#133153
    • Docs (k/website) update(s):
      • KEP-961: update maxUnavailable docs for StatefulSet for Beta release website#52823
  • Beta - v1.36 (forced revert to off by default due to StatefulSet pod revisions not updated when MaxUnavailableStatefulSet enabled kubernetes#137409):
    • Code (k/k) update PR(s):
      • 1.36: KEP-961: demote maxUnavailable feature in statefulset to off by default kubernetes#137904
      • 1.35: Automated cherry pick of #137904: KEP-961: demote maxUnavailable feature in statefulset to off by default kubernetes#137926
    • Docs (k/website) update(s):
      • KEP-961: update maxUnavailable docs to reflect the FG being off by default website#55997
  • Beta - v1.37 (on by default)
    • KEP (k/enhancements) update PR(s):
      • KEP-961: update metadata for maxUnavailable for STS #6145
    • Code (k/k) update PR(s):
      • Parallel pod management should not count old, broken pods for maxUnavailable budget kubernetes#137666 (fixes StatefulSet pod revisions not updated when MaxUnavailableStatefulSet enabled kubernetes#137409)
      • KEP-961: maxUnavailable feature on by default kubernetes#139466
    • Docs (k/website) update(s):
      • TBD

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

[krmayankk]

/sig auth

[krmayankk]

/assign @krmayankk

[krmayankk]

/milestone v1.15

[kacole2]

/stage alpha

[mrbobbytables]

@krmayankk should this be sig auth? The KEP itself refers to sig-apps.

[krmayankk]

@mrbobbytables no this is specific to sig-apps

[mrbobbytables]

@krmayankk it has the responsible sig list as sig-auth 'in the post and is labeled with auth.

• Responsible SIGs: sig-auth

Would you mind updating the issue?

Thanks!

/remove-sig auth
/sig apps