The 'Set up Docker Buildx' step boots BuildKit, which pulls
moby/buildkit from registry-1.docker.io. A transient Docker Hub
timeout there had no retry (only the build step did), so the whole
build job failed at setup.
Pre-pull the BuildKit image with a 7x/20s retry before the buildx
setup, and pin the action to that exact tag via driver-opts. Once the
image is local, buildx falls back to it if the bootstrap pull fails
('pulling failed, using local image'), so a flaky Docker Hub no longer
breaks setup. Applied to both images-build-ci.yml and
release-version.yml.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 4.8