nginx - 如何在NGINX中获取URL的子域

Question

我想根据用户输入的子域进行重定向。

例如:
<subdomain>.example.com/admin -> <subdomain>.myurl.com
理想情况下，我想将<subdomain>作为参数传递给我的重定向URL。

我在看一些类似的东西:

location ~ (sub).(somewhere).(com)/(some)(thing)/(something)(else) {
  set $var1 = $1; # = sub in above example
  set $var2 = $2; # = somewhere in above example
  set $var3 = $3; # = com in above example
  set $var4 = $4; # = some in above example
  set $var5 = $5; # = thing in above example
  set $var6 = $6; # = something in above example
  set $var7 = $7; # = else in above example
  rewrite ^ $1/$2 last; # would be sub/somewhere
}

基于此处的帖子: Manipulate or split string(我认为该变量集的语法在此示例中是错误的，但您可以理解要点)。

Answer 1

URL的域名部分未经location指令测试。您将需要在server_name指令中使用命名捕获。有关详细信息，请参见this document。

例如:

server {
    server_name ~^(?<name>\w+)\.example\.com$;

    location /admin {
        return 301 $scheme://$name.myurl.com/;
    }
}