如何获得同一网桥网络上另一个正在运行的容器的ip地址？

Question

我有两个需要能够互相通信的应用程序。一个是项目应用程序，另一个是API。它们每个都有自己的docker-compose.yml文件，因此位于单独的Docker主机上。我对其进行了配置，以使它们共享相同的桥接网络，并且能够彼此“交谈”。在api应用程序中，我需要在/ etc / hosts文件中指定项目应用程序的ip地址，以便映射到正确的url。

目前，在检查网桥网络thank-view_net之后，我正在将IP地址硬编码为extra_hosts。有没有一种方法可以事先知道项目的ip地址，以便新创建项目的人不必在自己的计算机上查找它并自行更新docker-compose？

这是API docker-compose：

version: '2'
# define all services
services:
  # our service is called laravel 
  api:
    # we want to use the image which is build from our Dockerfile
    build: .
    # apache is running on port 80 but we want to expose this to port 8080 on our local machine
    ports:
      - 801:80
      - 4431:443
    # we depending on the mysql backend
    volumes: 
      - ./:/var/www/html
    networks:
      - thank-views_net
    container_name: api
    extra_hosts:
      - "dev-thankview.com:172.24.0.2"
    depends_on:
      - mysql_api
  # we use this service to easily view our database on localhost:8080
  phpmyadmin:
    restart: always
    image: phpmyadmin/phpmyadmin
    networks:
      - thank-views_net
    ports:
      - 8080:80
    environment:
      - PMA_HOST=mysql_api
      - PMA_USER=root
      - PMA_PASSWORD=root
    depends_on:
      - mysql_api
  mysql_api:
    # we use the mysql base image, version 5.7.22
    image: mysql:8.0.12
    # we mount a datavolume to make sure we don't loose data
    ports: 
      - 33061:3306
    volumes:
       - db_api:/var/lib/mysql
    networks:
      - thank-views_net
    # setting some envvars to create the DB
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=thankviews_api
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
volumes:
  db_api:
networks:
  thank-views_net:
    external: true

这是docker-compose应用程序：

version: '2'
# define all services
services:
  # our service is called laravel 
  laravel:
    # we want to use the image which is build from our Dockerfile
    build: .
    # apache is running on port 80 and we expose it to port 80 on our host machine
    ports:
      - 80:80
      - 443:443
    # attach current directory to application directory in docker
    volumes: 
      - ./:/var/www/html
    networks:
      - net
    depends_on:
      - mysql
  # we use this service to easily view our database on localhost:8080
  phpmyadmin:
    restart: always
    image: phpmyadmin/phpmyadmin
    networks:
      - net
    ports:
      - 8080:80
    environment:
      - PMA_HOST=myql
      - PMA_USER=root
      - PMA_PASSWORD=root
    depends_on:
      - mysql
  mysql:
    # we use the mysql base image, version 5.7.22
    image: mysql:5.7.22
    # we mount a datavolume to make sure we don't loose data
    ports: 
      - 3306:3306
    volumes:
       - db_data:/var/lib/mysql
       - ./docker/init_db:/docker-entrypoint-initdb.d
    networks:
      - net
    # setting some envvars to create the DB
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=thankviews
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
volumes:
    db_data:
networks:
  net:
    driver: bridge

这是检查docker网络的值。我正在将来自thankview容器的ipv4address硬编码到extra_hosts部分：

[
    {
        "Name": "thank-views_net",
        "Id": "2cbeb86d05a042dc37e96394626ff1080e883616897af07ad0551d25ed9b57d3",
        "Created": "2018-08-24T15:13:43.0327743Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.24.0.0/16",
                    "Gateway": "172.24.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "8238f9608e06a1ded6b6162039d5c366b466a42970084dbd3df8807bb9fc353c": {
                "Name": "api",
                "EndpointID": "793254eef92a8dc6ea481b3e5c04eb202c653b691c7473e39882b74c7412703b",
                "MacAddress": "02:42:ac:18:00:04",
                "IPv4Address": "172.24.0.4/16",
                "IPv6Address": ""
            },
            "86c463136c0ccfec5b1bcebbc8f81fd52931f7e0ab6e4ed9aa8c40b7cd13dfb5": {
                "Name": "api_mysql_api_1",
                "EndpointID": "c74233b8d875c2ebf50d326742373f4406359fc95c61a1bdcb39b037fe24af19",
                "MacAddress": "02:42:ac:18:00:03",
                "IPv4Address": "172.24.0.3/16",
                "IPv6Address": ""
            },
            "8aabf5a963cba2cce260f3e357a0c3fca1263e9aa2f536c8162bab3c392b2a54": {
                "Name": "api_phpmyadmin_1",
                "EndpointID": "fdadae8bf1210c83e45e56fe873730a10bfbb9460e9690f524f4240a71ea7823",
                "MacAddress": "02:42:ac:18:00:05",
                "IPv4Address": "172.24.0.5/16",
                "IPv6Address": ""
            },
            "f85629b1ab72c99d15588381f05b2b40b9d31d5511c6ab5639b2b06d75303d6b": {
                "Name": "thankview",
                "EndpointID": "278408b8ccf17e1b5723e3c34ae4fe07c0928333161e7c7ef3d5dab8b3b2306e",
                "MacAddress": "02:42:ac:18:00:02",
                "IPv4Address": **"172.24.0.2/16"**,
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]