services: database: container_name: 'db' image: mariadb restart: always environment: MARIADB_DATABASE: 'testdb' MARIADB_USER: 'test' MARIADB_PASSWORD: 'Passw0rd' MARIADB_ROOT_PASSWORD: 'Passw0rd' volumes: - mariadb:/var/lib/mysql app: container_name: 'testapp' image: site restart: always ports: - "8080:8000" environment: DB_HOST: "db" DB_PORT: "3306" DB_TYPE: 'maria' DB_NAME: 'testdb' DB_USER: 'test' DB_PASS: 'Passw0rd' volumes: mariadb: