docker - Docker + Nginx允许来自外部docker的上游gunicorn

Question

我有一个运行Nginx的docker-compose容器，我想与在同一台机器上的docker外部运行的Flask + Gunicorn一起使用。当我同时在Docker中运行时，一切都可以通过docker-compose.yml links正常运行，但是当我在Flask之外运行Gunicorn + Docker时，出现了我要解决的错误。如何解决此错误？
我得到的错误是

2020/07/17 03:24:49 [error] 38#38: *1 connect() failed (111: Connection refused) while connecting to upstream, client: *.*.*.*, server: website.com, request: "GET / HTTP/2.0", upstream: "http://127.0.0.1:5000/", host: "website.com"

我正在通过 gunicorn运行 gunicorn --bind 0.0.0.0:5000 wsgi:app我的Nginx website.conf

upstream hello_server {
    #server 127.0.0.1:5000;
    server 0.0.0.0:5000;
}

    server {
        listen 80;
        # ...

        location ^~ /static/ {
            # Path of your static files
            root /var/www;
        }

        location / {
            proxy_pass_header Server;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Scheme $scheme;
            proxy_pass http://frontends;
        }
    }
}

我的 docker-compose.yml

version: '3'

services:

  web:
    image: nginx:latest
    ports:
      - 80:80/tcp
      - 443:443/tcp

Answer 1

您可以使用HOST IP，例如，上游运行在5000端口上，只需将frontend指向HOST IP，例如192.168.0.1。

 server {
        listen 80;
        location ^~ /static/ {
            # Path of your static files
            root /var/www;
        }

        location / {
            proxy_pass_header Server;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Scheme $scheme;
            proxy_pass http://192.168.0.1:5000;
        }
    }

或带有上游变量

upstream gunicornapp {
    server 192.168.43.84:3000;
}

    server {
        listen 80;
        location ^~ /static/ {
            # Path of your static files
            root /var/www;
        }

        location / {
            proxy_pass_header Server;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Scheme $scheme;
            proxy_pass http://gunicornapp;
        }
    }