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5a2578ce09
Promote the CustomCPUCFSQuotaPeriod gate to GA, turning it enabled by default. Short history of this feature so far: As far as git and github history allows to reconstruct, this feature was introduced without KEP/design doc process (kubernetes 1.12). It was a double-opt-in feature: users set to first enable a FG to make the kubelet honor a setting, then change a specific tunable to change the behavior This is more like a “safeguard” FG (Other noteworthy examples: `UnauthenticatedHTTP2DOSMitigation` or `DisableCPUQuotaWithExclusiveCPUs`) rather than a KEP-driven feature gate Major past events: - introduced in: https://github.com/kubernetes/kubernetes/pull/63437 - Discussion about adding a FG: https://github.com/kubernetes/kubernetes/pull/63437#issuecomment-387828654 - The change was initially accepted as straightforward, but it was later discovered systemd had gaps, and the change was downgraded as experimental: https://github.com/kubernetes/kubernetes/pull/63437#issuecomment-391740566 - FG re-introduced because systemd acknowledged and fixed the gap, but the systemd rollout would take quite some time: https://github.com/kubernetes/kubernetes/pull/63437#issuecomment-407950436 There's a gap, still relevant in 2026: missing e2e tests to move past alpha: https://github.com/kubernetes/kubernetes/pull/63437#issuecomment-417674790 Other noteworthy work related to this feature: - https://github.com/kubernetes/kubernetes/pull/94687 - https://github.com/kubernetes/kubernetes/pull/111520 - https://github.com/kubernetes/kubernetes/pull/129726 - https://github.com/kubernetes/kubernetes/pull/133845 Fix and modernize the related unit tests. Signed-off-by: Francesco Romani <fromani@redhat.com> fixup |
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| README.md | ||
This directory contains commands for compatibility lifecycle verification
Currently, the following commands are implemented:
# Verify feature gate list is up to date
go run test/compatibility_lifecycle/main.go feature-gates verify
# Update feature gate list
go run test/compatibility_lifecycle/main.go feature-gates update