nginx subdomain

Question

Ok I can't seem to get it, I've checked nginx forum, not much help there either. I thought this would be simple. I want defined subdomains to go to a different url/port. i.e.

DNS site.com goes to 192.168.1.1 w/ masking
DNS www.site.com goes 192.168.1.1 w/ masking
DNS red.site.com goes 192.168.1.1 w/ masking
DNS blue.site.com goes to 192.168.1.1 w/ masking

I want site.com and www.site.com to function as normal, but I want red.site.com to go to 192.168.1.2:5000 and blue.site.com to go to 192.168.1.2:6000/temp/

etc, etc....I'm not even sure I care what displays in the address bar, I guess it would be nice if it stayed red.site.com, but it's not important. I've tried a proxy pass a url rewrite, clearly I am doing something wrong. Is this even possible?

Answer 1

Have you tried the Proxy pass directive?

With something like

server {
  server_name red.site.com;

  location  / {
    proxy_pass http://192.168.1.2:5000;
  }
}
server {
  server_name blue.site.com;

  location  / {
    proxy_pass 192.168.1.2:6000/temp/;
  }
}

should work. Look at the documentation for things like header to forward etc...

Answer 2

Create as many virtual servers as you need. Check in /etc/nginx/sites-available and copy the default server to red ... (or where your config here). Then go to /etc/nginx/sites-enabled and do a symlink

ln -s ../sites-available/red

and do the same for other servers (blue...), then restart nginx or killall -HUP nginx to reload the config.

Basically in a virtual server you give whatever configuration is specific to that server.

For instance, for red

server {
  listen 5000;
  server_name red.site.com;
  root /var/www/docs/red;
  ...
}

or for blue (notice the temp added to root)

server {
  listen 6000;
  server_name blue.site.com;
  root /var/www/docs/somewhere/temp;
  ...
}

If you need to specify the IP as well, do

  listen 192.168.1.2:5000;

for red, or 6000 for blue.

Some litterature that explains the directives.