version: '3.1' networks: phpmyadmin: external: false services: db: image: mariadb:10.3 restart: always container_name: db networks: - phpmyadmin environment: MYSQL_ROOT_PASSWORD: notSecureChangeMe phpmyadmin: image: phpmyadmin container_name: phpmyadmin restart: always networks: - phpmyadmin ports: - 8080:80 environment: - PMA_ARBITRARY=1