Docker / phpmyadmin:无法连接到

Question

我有下面的停靠-撰写文件。

version: "3.7"
services:
  main:
    container_name: buspack_main
    build:
      context: .
      target: development
    volumes:
      - .:/usr/src/app
      - /usr/src/app/node_modules
    ports:
      - ${API_PORT}:${API_PORT}
    command: bash -c "npm install --save && npm run start:dev"
    env_file:
      - .env
    networks:
      - webnet
    depends_on:
      - db
    links:
      - db
    restart: always

  db:
    container_name: buspack_db
    image: mysql:5.7.33
    networks:
      - webnet
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      MYSQL_DATABASE: "backendnest"
    ports:
      - 23306:3306
    restart: always
    volumes:
      - ./db:/var/lib/mysql:rw

  phpmyadmin:
    container_name: buspack_phpmyadmin
    image: phpmyadmin/phpmyadmin
    depends_on:
      - db
    restart: always
    ports:
      - '8030:80'
    environment:
      PMA_HOST: buspack_db
      MYSQL_ROOT_PASSWORD: 123456
networks:
  webnet:
volumes:
  db: {}

我的问题是，当我尝试使用phpmyadmin登录时，我会得到以下错误：

mysqli::real_connect()：php_network_getaddresses: getaddrinfo失败:名称解析临时失败

而且还

mysqli::real_connect()：(HY000/2002)：php_network_getaddresses: getaddrinfo失败:名称解析临时失败

我遗漏了什么吗？

Answer 1

    networks:
      - webnet

在phpmyadmin服务中添加webnet网络

Answer 2

有更多的选项来解决连接。

1. 按照webnet的建议，将phpmyadmin容器添加到德夫苏达尼网络中。提供的YML示例覆盖默认网络。由于phpMyAdmin缺少网络配置，默认情况下它不会在webnet停靠网络上。
2. 从YML中删除所有与networks相关的配置。因为compose已经为一个YML文件中的容器创建了默认网络(文档)。
3. 使用PMA_ARBITRARY=1 (文档 )，它允许您在登录表单中输入数据库服务器主机名。

使用自定义网桥网络安装YML的示例：

version: '3.8'

services:
  mysql:
    image: mysql:5.7
    container_name: myapp-mysql-db
    restart: unless-stopped
    ports:
      - "3306:3306"
    environment:
      MYSQL_DATABASE: ${DB_DATABASE}
      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
      MYSQL_PASSWORD: ${DB_PASSWORD}
      MYSQL_USER: ${DB_USERNAME}
    volumes:
      - ./database/dbdata:/var/lib/mysql
    networks:
      - myapp-network

  phpmyadmin:
    image: phpmyadmin:latest
    container_name: phpmyadmin
    ports:
      # 8080 is the host port and 80 is the docker port
      - 8080:80
    environment:
      PMA_HOST: mysql
      UPLOAD_LIMIT: 20M
      MYSQL_USERNAME: ${DB_USERNAME}
      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
    restart: unless-stopped
    networks:
      # define your network where all containers are connected to each other
      - myapp-network

networks:
  myapp-network:
    driver: bridge