# -- built-in S3 (MinIO) + one-shot bucket creation ----------------------
  minio:
    image: minio/minio:latest
    restart: unless-stopped
    command: server /data --console-address ":9001"
    environment:
      MINIO_ROOT_USER: ${S3_ACCESS_KEY}
      MINIO_ROOT_PASSWORD: ${S3_SECRET_KEY}
    volumes:
      - miniodata:/data

  # Waits for MinIO to accept connections, then creates the bucket. Runs once
  # (restart: no) and exits 0 — `compose up --wait` treats that as complete.
  minio-setup:
    image: minio/mc:latest
    restart: "no"
    depends_on:
      - minio
    entrypoint: >
      /bin/sh -c "
      until mc alias set mcma http://minio:9000 ${S3_ACCESS_KEY} ${S3_SECRET_KEY}; do
        echo 'waiting for minio...'; sleep 2;
      done &&
      mc mb --ignore-existing mcma/${S3_BUCKET} &&
      echo 'bucket ready'
      "