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Automated cherry pick of #100678: apf: exempt probes /healthz /livez /readyz #101111

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merged 1 commit into from Apr 15, 2021
Merged

Automated cherry pick of #100678: apf: exempt probes /healthz /livez /readyz #101111

merged 1 commit into from Apr 15, 2021

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tkashem
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@tkashem tkashem commented Apr 14, 2021 •
edited by liggitt

Cherry pick of #100678 on release-1.21.

#100678: apf: exempt probes /healthz /livez /readyz

Why we need the back port:
kubelet liveness probe gets a 429 response (the priority level is saturated due to load or degradation) and this may cause kubelet to restart the apiserver instance. This PR will will prevent restarting of "healthy" kube-apiserver instance(s)

Fixes a regression in 1.20+ default configurations in the priority and fairness API server filter by exempting all probes (/readyz, /healthz, /livez) to prevent restarting of "healthy" kube-apiserver instance(s) by kubelet.

@k8s-ci-robot k8s-ci-robot added this to the v1.21 milestone Apr 14, 2021
@k8s-ci-robot k8s-ci-robot added do-not-merge/cherry-pick-not-approved Indicates that a PR is not yet approved to merge into a release branch. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. do-not-merge/needs-kind Indicates a PR lacks a `kind/foo` label and requires one. do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. needs-priority Indicates a PR lacks a `priority/foo` label and requires one. labels Apr 14, 2021
@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. release-note Denotes a PR that will be considered when it comes time to generate release notes. and removed do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. labels Apr 14, 2021
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tkashem commented Apr 14, 2021

/kind bug
/sig api-machinery
/assign @MikeSpreitzer @wojtek-t

@k8s-ci-robot k8s-ci-robot added kind/bug Categorizes issue or PR as related to a bug. sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. and removed do-not-merge/needs-kind Indicates a PR lacks a `kind/foo` label and requires one. do-not-merge/needs-sig Indicates an issue or PR lacks a `sig/foo` label and requires one. labels Apr 14, 2021
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/lgtm
/approve

@deads2k - FYI

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Apr 14, 2021
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deads2k commented Apr 14, 2021

/approve

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/approve

@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Apr 14, 2021
hasheddan
hasheddan approved these changes Apr 15, 2021
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/lgtm

@hasheddan hasheddan added the cherry-pick-approved Indicates a cherry-pick PR into a release branch has been approved by the release branch manager. label Apr 15, 2021
@k8s-ci-robot k8s-ci-robot removed the do-not-merge/cherry-pick-not-approved Indicates that a PR is not yet approved to merge into a release branch. label Apr 15, 2021
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: deads2k, hasheddan, lavalamp, tkashem, wojtek-t

The full list of commands accepted by this bot can be found here.

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@k8s-ci-robot k8s-ci-robot merged commit 45da3fc into kubernetes:release-1.21 Apr 15, 2021
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/triage accepted

@k8s-ci-robot k8s-ci-robot added triage/accepted Indicates an issue or PR is ready to be actively worked on. and removed needs-triage Indicates an issue or PR lacks a `triage/foo` label and requires one. labels Apr 15, 2021
@liggitt liggitt added the kind/regression Categorizes issue or PR as related to a regression from a prior release. label Apr 27, 2022
@liggitt liggitt removed the kind/regression Categorizes issue or PR as related to a regression from a prior release. label Sep 9, 2023
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@hasheddan hasheddan hasheddan approved these changes

@saad-ali saad-ali Awaiting requested review from saad-ali

@smarterclayton smarterclayton Awaiting requested review from smarterclayton

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@wojtek-t wojtek-t

@MikeSpreitzer MikeSpreitzer

@hasheddan hasheddan

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approved Indicates a PR has been approved by an approver from all required OWNERS files. cherry-pick-approved Indicates a cherry-pick PR into a release branch has been approved by the release branch manager. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. kind/api-change Categorizes issue or PR as related to adding, removing, or otherwise changing an API kind/bug Categorizes issue or PR as related to a bug. lgtm "Looks good to me", indicates that a PR is ready to be merged. needs-priority Indicates a PR lacks a `priority/foo` label and requires one. release-note Denotes a PR that will be considered when it comes time to generate release notes. sig/api-machinery Categorizes an issue or PR as relevant to SIG API Machinery. size/S Denotes a PR that changes 10-29 lines, ignoring generated files. triage/accepted Indicates an issue or PR is ready to be actively worked on.
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@tkashem @wojtek-t @deads2k @lavalamp @k8s-ci-robot @fedebongio @hasheddan @liggitt @MikeSpreitzer