如何在 docker-compose 中连接到命名网络

Question

我有一个依赖 4 个后端服务器（redis、mongo、graphql-websockets-subscriptions 和 graphql-http）和一个前端的应用程序

不配置网络，我可以在同一个容器中连接不同的服务器，但是我无法从前端 compose-container 使用以下 URL 访问 mongodb 数据库：mongodb://weallyback_default:27017/weally

这是我的前端撰写配置

version: "3.8"

services:
  next_server:
    image: node:14.17.3-alpine
    volumes:
      - type: bind
        source: ./
        target: /front
      - type: volume
        source: nodemodules # name of the volume, see below
        target: /front/node_modules
        volume:
          nocopy: true
    working_dir: /front
    command: yarn dev
    ports:
      - "3000:3000"
    networks:
      - weallyback_default
    environment:
      - NODE_ENV=development
      - PORT=3000

volumes:
  nodemodules:

networks:
  weallyback_default:
    external: true

知道我的后端配置公开了默认网络weallyback_default

D:\Zied\work\WeAllyBack>docker network ls
NETWORK ID     NAME                 DRIVER    SCOPE
71d1c5f23159   bridge               bridge    local
cd980f642e7b   host                 host      local
4a50359ad823   none                 null      local
ecec643b2a2e   weallyback_default   bridge    local

这导致我尝试配置网络，但这打破了同一容器中实例之间的连接：

据我所知，如果我想在不同的 docker-compose 文件中使用它们，我必须将网络声明为外部网络。 所以我开始命名我的网络，但无论如何我无法让它工作：

这些是我的 4 个后端服务器：

version: "3.8"

services:
  redis-server:
    image: 'redis:6.2-alpine'
    ports:
    - "6379:6379"
    networks:
      - redis_server
  mongo-server:
    image: mongo:4.4.5
    ports:
    - "27001:27001"
    volumes:
    - mongodb:/data/db
    - mongodb_config:/data/configdb
    networks:
      - mongo_server
    restart: always
  graphql_server:
    depends_on:
      - mongo-server
      - redis-server
    image: node:14.17.3-alpine
    volumes:
      - type: bind
        source: ./
        target: /app
      - type: volume
        source: nodemodules # name of the volume, see below
        target: /app/node_modules
        volume:
          nocopy: true
    working_dir: /app
    command: yarn dev
    ports:
      - "4000:4000"
    networks:
      - graphql_server
    environment:
      - NODE_ENV=development
      - PORT=4000
  graphql_pubsub_server:
    depends_on:
      - mongo-server
      - redis-server
    image: node:14.17.3-alpine
    volumes:
      - type: bind
        source: ./
        target: /app
      - type: volume
        source: nodemodules # name of the volume, see below
        target: /app/node_modules
        volume:
          nocopy: true
    working_dir: /app
    command: yarn dev-sub
    ports:
      - "4001:4001"
    networks:
      - graphql_pubsub_server
    environment:
      - NODE_ENV=development
      - PORT=4000

volumes:
  nodemodules:
  mongodb:
  mongodb_config:

networks:
  graphql_server:
    name: graphql_server
    driver: bridge
  graphql_pubsub_server:
    name: graphql_pubsub_server
    driver: bridge
  mongo_server:
    name: mongo_server
    driver: bridge
  redis_server:
    name: redis_server
    driver: bridge

当我尝试将 graphql 服务器连接到 mongo 和 redis 时，它不起作用：

const DEV_URL_LOCAL = 'mongodb://mongo_server:27017/weally';

export const pubsub = new RedisPubSub({connection:{
        host: 'redis_server',
        port: 6379
    }});

尽管当我运行docker network inspect时网络似乎没问题：

D:\Zied\work\WeAllyBack>docker network ls
NETWORK ID     NAME                    DRIVER    SCOPE
71d1c5f23159   bridge                  bridge    local
7b698d7c38ed   graphql_pubsub_server   bridge    local
face1241983a   graphql_server          bridge    local
cd980f642e7b   host                    host      local
d96e8413bcb8   mongo_server            bridge    local
4a50359ad823   none                    null      local
37ff1f5d3a5a   redis_server            bridge    local

D:\Zied\work\WeAllyBack>docker network inspect mongo_server
[
    {
        "Name": "mongo_server",
        "Id": "be01389c97736f926a2b8dddc91d54699fba248763d3d0159a41b1357da06075",
        "Created": "2021-07-30T09:51:35.3012605Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.28.0.0/16",
                    "Gateway": "172.28.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "60817f0df286606dd7f602650f874ae69b6ee392135e8f2387ac11138a64e466": {
                "Name": "weallyback_mongo-server_1",
                "EndpointID": "ef06eb7e1faae792d41d99c11012f8a69b2da5d888869d8737cf0a41422619d0",
                "MacAddress": "02:42:ac:1c:00:02",
                "IPv4Address": "172.28.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {
            "com.docker.compose.network": "mongo_server",
            "com.docker.compose.project": "weallyback",
            "com.docker.compose.version": "2.0.0"
        }
    }
]

我是 Docker 的新手，所以我真的很困惑下一步该做什么......

请注意，如果我删除特定于网络的设置，一切正常，我只想将前端服务器配置放在不同的 docker-compose 文件中，因此我想命名网络以从其他（前端）容器访问它们. 此配置适用于 redis-server:6379 和 mongodb://mongo-server:27017/weally 网址：

version: "3.8"

services:
  redis-server:
    image: 'redis:6.2-alpine'
    ports:
    - "6379:6379"
  mongo-server:
    image: mongo:4.4.5
    ports:
    - "27001:27001"
    volumes:
    - mongodb:/data/db
    - mongodb_config:/data/configdb
    restart: always
  graphql_server:
    depends_on:
      - mongo-server
      - redis-server
    image: node:14.17.3-alpine
    volumes:
      - type: bind
        source: ./
        target: /app
      - type: volume
        source: nodemodules # name of the volume, see below
        target: /app/node_modules
        volume:
          nocopy: true
    working_dir: /app
    command: yarn dev
    ports:
      - "4000:4000"
    environment:
      - NODE_ENV=development
      - PORT=4000
  graphql_pubsub_server:
    depends_on:
      - mongo-server
      - redis-server
    image: node:14.17.3-alpine
    volumes:
      - type: bind
        source: ./
        target: /app
      - type: volume
        source: nodemodules # name of the volume, see below
        target: /app/node_modules
        volume:
          nocopy: true
    working_dir: /app
    command: yarn dev-sub
    ports:
      - "4001:4001"
    environment:
      - NODE_ENV=development
      - PORT=4000

volumes:
  nodemodules:
  mongodb:
  mongodb_config:

这在修剪后给出了这些网络

> docker network ls
NETWORK ID     NAME                 DRIVER    SCOPE
71d1c5f23159   bridge               bridge    local
cd980f642e7b   host                 host      local
4a50359ad823   none                 null      local
e4cf4a71d49a   weallyback_default   bridge    local