"container:[container name/id]" networks 配置容器连接的网络。 version: "3" services: some-service: networks: - some-network - other-network networks: some-network: other-network: 205 version: "3" services: wordpress: image: wordpress ports: - 80:80 networks: - overlay environment: WORDPRESS_DB_HOST: db:3306 WORDPRESS_DB_USER: wordpress deploy: mode: replicated replicas: 3 db: image: mysql networks: - overlay volumes: - db-data:/var/lib/mysql environment: MYSQL_ROOT_PASSWORD: