version: '3' services: app: build: context: . dockerfile: Dockerfile container_name: startup-app ports: - '80:80' volumes: - ./:/var/www/html links: - db networks: - startup restart: unless-stopped working_dir: /var/www/html db: image: mysql:8 container_name: startup-db restart: unless-stopped volumes: - mysql:/var/lib/mysql networks: - startup environment: MYSQL_ROOT_PASSWORD: root MYSQL_PASSWORD: lmaa,dw. MYSQL_USER: startup MYSQL_DATABASE: startup networks: startup: volumes: mysql: