gistfile1.txt

file { '/etc/nginx/sites-available/default':
  ensure  => file,
  mode    => '0755',
  content => template('roles/nodejs-sample.erb')
}

/roles/templates/nodejs-sample.erb

upstream nodejs-sample {
  server 127.0.0.1:5000;
}

# the nginx server instance
server {
  listen 0.0.0.0:80;
  server_name testapp;
  access_log /var/log/nginx/testapp.log;

  # pass the request to the node.js server with the correct headers and much more can be added, see nginx config options
  location / {
    proxy_set_header X-NginX-Proxy true;

    proxy_pass http://172.16.1.2:5000/;
    proxy_redirect off;
  }
}