如何在 nginx 中将子域作为 proxy_pass 值传递? [英] How can i pass subdomain as proxy_pass value in nginx?

问题描述

我目前处于需要获取/捕获子域并将该子域值传递给 Nginx 配置中的 proxy_pass 的情况.

i am currently in situation where i need to get/catch sub-domain and pass that sub-domain value to proxy_pass in Nginx config.

例如

如果用户输入

http://google.com.mydomain.com

那么它应该做代理传递

proxy_pass http://www.google.com/;

在上面的例子中 google.com 是 sub-domain

in above example google.com is sub-domain

这可行吗?我怎样才能在 nginx 中实现这样的目标?

can this be doable ? How can i achieve something like that in nginx ?

目前我使用的配置是在配置文件中对子域值进行硬编码，但是有很多子域，所以我需要这样做，但不知道正确的语法.

currently i am using configuration where sub-domain values are hard-coded in config files , but there are many sub-domains , so i need to do it like this way, but don't know correct syntax.

server {
    listen       80;
    server_name  subdomain.domain.com;
    charset utf-8;

    location / {
      proxy_pass http://www.subdomain/;
    }
}

我使用 * 作为 A 记录将所有子域重定向到我的网络主机，即通配符 DNS.

I am using * as A record to redirect all sub-domains to my web-host, i.e. wildcard DNS.

更新:

我从 https://stackoverflow.com/a/22774520/1642018

server {          
    listen       80;                                               
  # this matches every subdomain of domain.
  server_name .domain.com;                                           

  location / {                                                   

    set $subdomain "";

    if ($host ~* "^(.+)\.domain.com$") {                             
      set $subdomain $1;                                         
    }                                                            

    proxy_pass http://$subdomain;   

  }                                                              
} 

但请求显示的是我的默认页面，该页面位于我的默认 Web 根目录中.

but the request is showing my default page which is in my default web root.

推荐答案

两件事.

1- 解析器(用于您的 nginx 的 dns 服务器以解析 google.com，您可以在主机上添加或者您可以添加解析器语句)

1- A resolver (a dns server for your nginx in order to resolve google.com, you may add at your hosts or you are able to add resolver statement)

2- 您需要解决您的客户将如何处理不同域的问题，我的意思是 google.com 与 google.com.ar 或 google.fr 不同)

2- You will need to resolve how your client will deals with different domains, I mean google.com is different than google.com.ar or google.fr)

在这个例子中，我为你的例子 google.com 做了工作

At this example I made work it for your example google.com

worker_processes 4;

error_log /var/log/nginx/error.log;

events {
  worker_connections  1024;
}

http {

  server {
    listen       80;

    location / { 
      set $subdomain ""; 

      if ($host ~* "^(.+)\.domain.com$") {
        set $subdomain $1; 
      }   
      resolver 8.8.8.8;
      proxy_pass "http://$subdomain.com";

    }   
  }
}

希望这个配置对你有帮助.

I hope that this configuration helps to you.

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