Add Pod Index Label for StatefulSets and Indexed Jobs

[danielvegamyhre]

Enhancement Description

• One-line enhancement description (can be used as a release note): Add Pod Index Label for StatefulSets and Indexed Jobs.
• Kubernetes Enhancement Proposal: https://.com/kubernetes/enhancements/tree/master/keps/sig-apps/4017-pod-index-label
• Discussion Link: Publish the pod index as a label and annotation for Statefulset and indexed Job kubernetes#117986
• Primary contact (assignee): @danielvegamyhre
• Responsible SIGs: sig-apps
• Enhancement target (which target equals to which milestone):
  • Beta release target (x.y): 1.28
  • Stable release target (x.y): 1.32

Note: We will release the feature directly in Beta state since there is no benefit in having an alpha release, since we are simply adding a new label so there is very little risk (unlike removing an
existing label which other things may depend on, for example).

• Beta
  • KEP (k/enhancements) update PR(s): KEP-4017: Pod Index Label for StatefulSets and Indexed Jobs #4019
  • Code (k/k) update PR(s):
    • Add completion index as pod label for indexed jobs kubernetes#118883
    • Add StatefulSet pod index as pod label kubernetes#119232
  • Docs (k/website) update(s):
    • Add docs for KEP-4017 (pod index label) website#42139
• Stable
  • KEP (k/enhancements) update PR(s): KEP-4017: promote Pod Index Label for StatefulSets and Indexed Jobs to GA #4865
  • Code (k/k) update PR(s):
    [KEP-4017]: update e2e and integration test for PodIndexLabel kubernetes#128107
    Promote PodIndexLabel for Statefulset and IndexedJob stable kubernetes#128387
  • Docs (k/website) update(s): [KEP 4017]: add documentation for PodIndexLabel going GA website#48496

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

[danielvegamyhre]

/sig apps
/assign

[soltysh]

/label beta
/milestone v1.28
/label lead-opted-in

[k8s-ci-robot]

@soltysh: The label(s) /label beta cannot be applied. These labels are supported: api-review, tide/merge-method-merge, tide/merge-method-rebase, tide/merge-method-squash, team/katacoda, refactor, lead-opted-in, tracked/no, tracked/out-of-tree, tracked/yes. Is this label configured under labels -> additional_labels or labels -> restricted_labels in plugin.yaml?

In response to this:

/label beta
/milestone v1.28
/label lead-opted-in

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[soltysh]

/stage beta

[npolshakova]

Hi @danielvegamyhre 👋, Enhancements team here!

Just checking in as we approach enhancements freeze on 01:00 UTC Friday, 16th June 2023.

This enhancement is targeting for stage beta for 1.28 (correct me, if otherwise.)

Here's where this enhancement currently stands:

• KEP readme using the latest template has been merged into the k/enhancements repo.
• KEP status is marked as implementable for latest-milestone: 1.28
• KEP readme has a updated detailed test plan section filled out
• KEP readme has up to date graduation criteria
• KEP has a production readiness review that has been completed and merged into k/enhancements.

It looks like #4019 will address some of these requirements.

For this KEP, we would just need to update the following:

• Mark the status as implementable for 1.28
• Address questions inside the Production Readiness Review Questionnaire

The status of this enhancement is marked as at risk. Please keep the issue description up-to-date with appropriate stages as well. Thank you!