k8s-ci-builder: Switch from Debian bullseye to bookworm#4302
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k8s-ci-robot merged 1 commit intokubernetes:masterfrom Mar 3, 2026
Merged
k8s-ci-builder: Switch from Debian bullseye to bookworm#4302k8s-ci-robot merged 1 commit intokubernetes:masterfrom
k8s-ci-robot merged 1 commit intokubernetes:masterfrom
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The latest Google Cloud SDK requires Python 3.10+ (uses `str | None` union type syntax), but bullseye only ships Python 3.9. This has been causing all k8s-ci-builder variants except `next` (already on bookworm) to fail since ~Feb 24. Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: saschagrunert The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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PTAL @kubernetes/release-engineering |
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/lgtm |
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What type of PR is this?
/kind bug
What this PR does / why we need it:
Switches the k8s-ci-builder image from Debian bullseye to bookworm. The latest Google Cloud SDK requires Python 3.10+ (
str | Noneunion type syntax), but bullseye only ships Python 3.9. This has caused all k8s-ci-builder variants exceptnext(already on bookworm) to fail since ~Feb 24.Which issue(s) this PR fixes:
None
Special notes for your reviewer:
The
nextvariant has been on bookworm since mid-2023 without issues. The glibc compatibility concern only applies to kube-cross (which builds the Kubernetes binaries shipped to users), not k8s-ci-builder (which only runs release tools inside CI).https://prow.k8s.io/job-history/gs/kubernetes-ci-logs/logs/post-release-push-image-k8s-ci-builder
Does this PR introduce a user-facing change?