docker - 如何从docker-compose中的容器访问localhost应用

Question

我有一个在容器(localhost:8090)之外运行的Web应用程序。
如何从docker-compose网络中的容器中访问它？

我试图遵循this对docker有帮助的答案。

version: '3.6'
services:
  postgres:
    image: postgres
    restart: always
    volumes:
    - db_data:/var/lib/postgresql/data
    networks:
      - host
  graphql-engine:
    image: hasura/graphql-engine:v1.0.0-beta.6
    ports:
    - "8080:8080"
    depends_on:
    - "postgres"
    restart: always
    environment:
      HASURA_GRAPHQL_AUTH_HOOK: "http://localhost:8090/verify"
volumes:
  db_data:

Answer 1

将network_mode: "host"添加到您的graphql-engine:中并删除端口映射:

  graphql-engine:
    image: hasura/graphql-engine:v1.0.0-beta.6
    depends_on:
    - "postgres"
    restart: always
    network_mode: "host"
    environment:
      HASURA_GRAPHQL_AUTH_HOOK: "http://localhost:8090/verify"

graphql-engine将在主机端口8080上侦听，并能够连接到 localhost:8090
为确保其正常工作，请确认docker主机上的 /etc/hosts文件位于 graphql-engine contianer内部。

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