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Pull the musl build image from a pinned mirror, with retries - #32
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Both musl legs failed at once when Docker Hub's anonymous-pull token endpoint timed out on alpine:latest. Pull alpine 3.24 by digest from ECR Public, which mirrors the same official image, once per job with backoff, and run both musl steps on that image. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Both musl legs of run 37992614440 failed within seconds of each other, before any build ran.
docker run alpine:latesttimed out on Docker Hub's anonymous-pull token endpoint:Nothing in the build broke. The musl legs passed in today's 06:08 and 16:54 runs. But each musl leg pulls
alpine:latesttwice, from one registry, with no retry. Any Docker Hub hiccup therefore fails the release, and the musl toolchain silently changes whenever Alpine moveslatest.Changes
public.ecr.aws/docker/library/alpine), which mirrors Docker Hub's official images and doesn't go through Docker Hub's token endpoint.alpine:3.24@sha256:294b683c…. That is the digest the last green musl build (run 37962402212) pulled, and I checked that ECR serves the same digest for3.24. The musl toolchain (gcc 15.2) now changes only through a reviewed bump.Pull musl build imagestep pulls once per musl job, retrying up to 5 times with linear backoff. Bothdocker runsteps (build and archive verification) then use the local image.Verification
actionlint: no new findings (the pre-existing shellcheck notes are unchanged).validate; the build matrix is skipped. Aworkflow_dispatchon this branch would run the release job, so I didn't trigger one. The first real proof is the next nightly or dispatch frommainafter merge. Please watch the two musl legs there.🤖 Generated with Claude Code