How to setup folder and domain in nginx?

Question

Nginx

Hey!
Available:

• View subdomainbla-stage.domain.tld
  
• Folder/var/www/bla
  

How to configure root so that nginx will look for a non-postfix domain -stage?
Examples:

• feature-next-stage.domain.tld→/var/www/feature-next
  
• feature-bla-stage.domain.tld→/var/www/feature-bla
  

Tried, didn't work.

server {
    listen   80 default_server;
    charset  utf-8;
    server_name "~^(.*)-stage\.domain\.tld$";
    root /var/www/$1;
    index index.html index.htm index.php;
    ...
}

Any ideas?

Answer 1

server {
    listen 80;
    server_name ~^(?<root_dir>.*)-stage\.domain\.tld$;
    root /var/www/$root_dir;
    ...
}

Answer 2

server {
  listen 80;
  server_name   ~^([^\-]+\-[^\-]+)\-stage.domain.tld$;

  if ($host ~* ^([^\-]+\-[^\-]+)\-stage.domain.tld$) {
    set $root_dir $1;
  }

  location / {
    root /var/www/$root_dir
  }
}

This is a bit of a crutch in Nginx - this is an example of an adapted working config - but the point is clear. We need to set variables. $1 just won't work.