Nginx smart app deployment

nginx.conf

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    passenger_root /var/lib/gems/1.8/gems/passenger-3.0.11;
    passenger_ruby /usr/bin/ruby1.8;

    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;

    keepalive_timeout  65;

    gzip  on;

    server  {
	    access_log logs/b.log;
		passenger_enabled on;
    	listen 9090;
    	server_name ~^([a-zA-Z0-9\_\-]+).apps.example.com;
		root /srv/ruby/$1/public; 
    	charset utf-8;
    }

    # just a redirect
    server  {
    	passenger_enabled on;
    	listen 9090;
    	server_name apps.example.com;
    	charset utf-8;
    	location ~ favicon.ico {
    		return 404;
    	}
    	location ~ ^/([a-z0-9\-\_]+)/? {
		    rewrite ^/index.html$ http://appindex.apps.example.com last;
		    rewrite /([a-z0-9\-\_]+)/(.*) http://$1.apps.example.com/$2 break;
		}
    }
}