services:
  mysql-8:
    container_name: mysql-8
    image: mysql:8
    restart: "no"
    environment:
      # No real data lives here - a thin self-hosted-registry mirror build
      # target, not a running database.
      - MYSQL_RANDOM_ROOT_PASSWORD=yes
    healthcheck:
      test: ["CMD-SHELL", "mysqladmin ping -h 127.0.0.1 || exit 1"]
      interval: 5s
      timeout: 5s
      retries: 10
      start_period: 20s