次のようなdocker-compose.ymlを考える services: mysql: image: mysql:8.0.30 restart: always volumes: - mysql_data:/var/lib/mysql mysql-cli: image: mysql:8.0.30 volumes: - ./docker/mysql:/opt/mysql working_dir: /opt/mysql command: ["mysql", "--defaults-extra-file=/opt/mysql/client-extra.conf", "db_name"] docker…