主页 / 问题 / 1398994
Accepted
Fkup
Asked:2022-06-11 09:48:19 +0000 UTC2022-06-11 09:48:19 +0000 UTC

看不到 docker 容器 ip

  • 772

通过 docker 运行时无法从前端向后端发出正确的请求

我通过 docker-compose 运行所有 3 个容器（前面是 react，后面是 node 和 postgres）：

version: '3'
services:

  front-react:
    build:
      context: ./client
    environment:
      NODE_ENV: development
    depends_on:
      - server-dev
    volumes:
      - ./client:/client
      - /client/node_modules
    ports:
      - "3000:3000"

  server-dev:
    build:
      context: ./server
    environment:
      NODE_ENV: development
    ports:
      - "5002:5002"
    depends_on:
      - database
    volumes:
      - ./server:/server
      - /server/node_modules


  database:
    image: postgres:14.2-alpine
    environment:
      - POSTGRES_PASSWORD=password
      - POSTGRES_USER=postgres
      - POSTGRES_DB=rssParser
    ports:
      - "5432:5432"
    
volumes:
  server-dev:

一切正常，前端启动并运行，后端也启动并运行并通过解析器不断将新闻上传到数据库。但是，一旦我通过指向基本类型的链接发出请求：

http://127.0.0.1:5002/api/login

给我一个错误。也通过邮递员！服务器ip可能有错误，它不应该是localhost，而是docker容器的名称或其ip，但他们也没有给出结果......我也尝试过提出请求：

http://rss_parser_server-dev_1:5002/api/registration
http://localhost.rss_parser_server-dev_1:5002/api/registration
http://rss_parser_server-dev:5002/api/registration
http://172.20.0.3:5002/api/registration

以下是正在运行的容器：

          Name                        Command               State                    Ports                  
------------------------------------------------------------------------------------------------------------
rss_parser_database_1      docker-entrypoint.sh postgres    Up      0.0.0.0:5432->5432/tcp,:::5432->5432/tcp
rss_parser_front-react_1   docker-entrypoint.sh /bin/ ...   Up      0.0.0.0:3000->3000/tcp,:::3000->3000/tcp
rss_parser_server-dev_1    docker-entrypoint.sh /bin/ ...   Up      0.0.0.0:5002->5002/tcp,:::5002->5002/tcp

这是服务器IP：

sudo docker inspect rss_parser_server-dev_1 | grep "IPAddress"
            "SecondaryIPAddresses": null,
            "IPAddress": "",
                    "IPAddress": "172.20.0.3"

我不明白我在哪里搞砸了......请帮忙。也许需要在某个地方向主机写一些东西，但是为什么请求也不通过邮递员工作......

邮递员错误：错误：连接 ECONNREFUSED 172.20.0.3:5002

node.js

1 个回答

  1. Best Answer

    现在一切都清楚了）两天在错误的地方搜索表明有必要在某个地方删除一些东西，即有一个 server.js 文件：

    require(`dotenv`).config();
const http = require('http');
const app = require('./app');
const PORT = process.env.PORT || 5002
const server = http.createServer(app);
server.listen(PORT, '127.0.0.1', () => {console.log(`Server is running on ${PORT} port!`)});

    改成这个：

    require(`dotenv`).config();
const http = require('http');
const app = require('./app');
const PORT = process.env.PORT || 5002
const server = http.createServer(app);
server.listen(PORT, () => {console.log(`Server is running on ${PORT} port!`)});

    一切，可以提出请求，一切正常！）

    • 0

相关问题