单个 docker-compose 和 nginx 反向代理中具有不同端口的 2 个应用程序

Question

我的本​​地主机中有一个以 app.dev 域运行的应用程序。但是，我希望有其他应用程序使用不同的端口运行。而不是端口 80，它将是 2000，域 app.dev:2000 在 app2/ 我可以知道我应该对我的 docker-compose 和 nginx 进行哪些更改吗？谢谢

这是我的 docker-compose

version: "2"

volumes: 
  mongostorage:

services:
  app:
    build: ./app
    ports:
      - "3000"
    links:
      - mongo
      - redis
    command: node ./bin/www
  app2:
    build: ./app2
    ports:
      - "2000"
    links:
      - mongo
      - redis
    command: node app.js
  nginx:
    build: ./nginx
    ports:
      - "80:80"
    links:
      - app:app
  mongo:
    image: mongo:latest
    environment:
      - MONGO_DATA_DIR=/data/db
    volumes:
      - mongostorage:/data/db
    ports:
      - "27017:27017"
  redis:
    image: redis
    volumes:
      - ./data/redis/db:/data/db
    ports:
      - "6379:6379"

这是我的 ngnix.conf

events {
  worker_connections  1024;
}

http{
    upstream app.dev{
        least_conn;
        server app:3000 weight=10 max_fails=3 fail_timeout=30s;
    }

    server {
        listen 80;
        server_name app.dev;

        location / {
            proxy_pass http://app.dev;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
        }
    }
}

Answer 1

我觉得只要按照下面的方式改变app2的端口就足够了，因为nginx只监听80端口。

app2:
  build: ./app2
  ports:
    - "2000:2000"
  links:
    - mongo
    - redis
  command: node app.js

Answer 2

最简单的方法是将app2暴露在2000端口

  app2:
    build: ./app2
    ports:
      - '2000:2000'

另一种是通过nginx路由连接，与第一个app保持一致。

作曲

  nginx:
    build: ./nginx
    ports:
      - '80:80'
      - '2000:2000' 

Nginx

http{
    upstream app.dev{
        least_conn;
        server app:3000 weight=10 max_fails=3 fail_timeout=30s;
    }
    upstream app2.dev{
        least_conn;
        server app2:2000 weight=10 max_fails=3 fail_timeout=30s;
    }

    server {
        listen 80;
        server_name app.dev;

        location / {
            proxy_pass http://app.dev;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
        }
    }
    server {
        listen 2000;
        server_name app.dev;

        location / {
            proxy_pass http://app2.dev/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection 'upgrade';
            proxy_set_header Host $host;
            proxy_cache_bypass $http_upgrade;
        }
    }
}

顺便说一句，您不需要任何 links 在版本 2+ 撰写文件中。您已经可以通过服务名称访问所有服务。