Nodejs app behind nginx

gistfile1.txt

upstream nodejs_app {
  server 127.0.0.1:8000; # change this to wherever Express is running
}

server {
  listen 80;
  server_name mlu.es;

  location / {
    try_files $uri @nodejs_app;
  }

  location @nodejs_app {
    proxy_set_header X-Real-IP  $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_pass  http://nodejs_app;
  }
}