Example upstart script to use with prerender-server https://prerender.io/

prerender-upstart.conf

description "<description here>"
author      "<author@email.com>"

start on filesystem or runlevel [2345]
stop on shutdown

# Automatically Respawn:
respawn
respawn limit 3 5

setuid www-data
setgid adm

env PORT=9000

script
  exec /usr/local/bin/node /srv/prerender/prerender.js >> /var/log/services/prerender.log 2>&1
end script

pre-start script
  echo "[`date`] prerender listening on http://127.0.0.1:$PORT/" >> /var/log/services/prerender.log
end script

pre-stop script
  echo "[`date`] prerender stopping" >> /var/log/services/prerender.log
end script