Closes#506.
Under Docker-out-of-Docker (the production Gitea Actions runner), the
host daemon resolves the relative bind-mount path against the host
filesystem — not the runner container's /workspace. The script is not
there, so Docker creates an empty directory at /bootstrap.sh and the
entrypoint fails with `/bootstrap.sh: Is a directory`.
Bake the script into a tiny derived image (infra/minio/Dockerfile) so
there is no runtime path resolution. Works in DooD, regular Docker,
and CI.
Unblocks the staging / production deploy pipelines from #497 / #499
and turns the Compose Bucket Idempotency CI job green.
Verified locally:
- `docker compose ... config --quiet` parses
- `docker compose ... build create-buckets` builds the image
- bootstrap.sh exists as a +x file at /bootstrap.sh inside the image
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
