nginx_site_config.conf

server {
  listen   80; ## listen for ipv4; this line is default and implied
  
  #server_name "~^(?<sub>.+)\.something\.com$";
  #root /var/www/$sub/current/public;

  server_name something.com;
  root /var/www/site/current/public;
  
  index index.html index.htm index.php;

  # serve static files directly
  location ~* \.(jpg|jpeg|gif|css|png|js|ico|html)$ {
    access_log off;
    #expires max;
  }

	# removes trailing slashes (prevents SEO duplicate content issues)
  if (!-d $request_filename)
  {
    rewrite ^/(.+)/$ /$1 permanent;
  }

	# removes trailing "index" from all controllers
  if ($request_uri ~* index/?$)
  {
    rewrite ^/(.*)/index/?$ /$1 permanent;
  }
	
	# unless the request is for a valid file (image, js, css, etc.), send to bootstrap
  if (!-e $request_filename)
  {
    rewrite ^/(.*)$ /index.php?/$1 last;
    break;
  }	

	error_page   500 502 503 504  /50x.html;
  location = /50x.html {
    root   html;
  }

	location ~* \.php$ {
    try_files $uri $uri/ /index.php?$query_string;
		fastcgi_index   index.php;
		#fastcgi_pass    127.0.0.1:9000;
    fastcgi_pass    unix:/var/run/php-fpm/php-fpm.sock;
    include         fastcgi_params;
    fastcgi_param   SCRIPT_FILENAME    $document_root$fastcgi_script_name;
    fastcgi_param   SCRIPT_NAME        $fastcgi_script_name;
  }
  
  location ~ /\.ht {
    deny  all;
  }
}