version: "3.7" services: database: image: mariadb environment: MYSQL_ROOT_PASSWORD: password MYSQL_DATABASE: example ports: - "3306:3306" phpmyadmin: depends_on: - database image: phpmyadmin/phpmyadmin ports: - "8080:80" environment: PMA_HOST: database PMA_USER: root PMA_PASSWORD: password PMA_PORT: 3306