Nginx example site

app.com.br

upstream unicorn_app {
   server unix:/home/ubuntu/www/app.com.br/current/tmp/.sock
   fail_timeout=0;
  }

server {
  listen 81;
  server_name .app.com.br;
  root /home/ubuntu/www/app.com.br/current/public;

  location / {
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect off;

      if (!-f $request_filename) {
        proxy_pass http://unicorn_app;
        break;
      }
    }
}