server {
  server_name example.com;
  listen 80;

  root /var/www/php;

  try_files $uri =404;
  fastcgi_pass unix:/var/run/php5-fpm.sock;
  fastcgi_index index.php;
  fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
  include fastcgi_params;

  location ~ ^/app(/.*|$) {
    alias /var/www/rails/current/public$1;

    access_log    /var/www/rails/current/log/access.log;
    error_log     /var/www/rails/current/log/error.log;

    passenger_base_uri /app;
    passenger_app_root /var/www/rails;
    passenger_document_root /var/www/rails/currnet/public;
    passenger_enabled on;
    passenger_app_env production;
    passenger_friendly_error_pages on;
    passenger_ruby /usr/local/rvm/gems/ruby-2.1.5@app/wrappers/ruby;

    client_max_body_size 4G;
    keepalive_timeout 10;
  }
}