an Upstart script for node.js app I used once ago, it demonstrates how to use nave from within a script, just replace node with nave use with node version

\\etc\\init\\APPNAME.conf

#!upstart
description "APPNAME node.js server"
author      "Shimon Doodkin"
# license: public domain

start on runlevel [2345]
stop on runlevel [06]

#pre-start script
#    exec  touch /var/log/APPNAME.nodejs.log
#    exec  chmod 777 /var/log/APPNAME.nodejs.log
#end script

script
    export HOME="/root"

    # 27017 dev_db, Are argument i pass to my bash the script

    exec sudo -u www-data /bin/bash /var/www/APPNAME/init.sh 27017 dev_db 

    # some other snippets
    # exec sudo -u www-data /bin/bash -c 'while true; do /usr/local/bin/node /var/www/APPNAME/server.js 2>&1 >> /var/log/APPNAME.nodejs.log; sleep 1; done;'
    # exec /usr/local/bin/node /var/www/APPNAME/server.js 2>&1 >> /var/log/APPNAME.nodejs.log
    # exec sudo -u www-data /usr/local/bin/node /var/www/APPNAME/server.js 2>&1 >> /var/log/APPNAME.nodejs.log
end script

\\var\\www\\APPNAME\\init.sh

#!/bin/bash

while true;
 do

  echo starting $(date);

  script_directory=`dirname "$0"`;
  cd $script_directory;

  # choose your arrows below
  # echo "bla" > file.txt # replaces file
  # echo "bla" >> file.txt # appends to file
  # or use a different logging solution if you need.

    nice -n 19 nave use 0.4.10 --debug server.js "$@" > /var/log/APPNAME.nodejs.log 2>&1;
  # nice -n 19 /usr/local/bin/node --debug server.js $* > /var/log/APPNAME.nodejs.log 2>&1; # before nave

  exit_value="$?" ;
  echo stopping $(date);

  if [ "$exit_value" != "0" ]; then
   sleep 5;
  else
   sleep 0.5;
  fi ;

 done;

# instead of useing monit or respawn. i did a shell while true script. to restart the secipt self exits , and this loop launches it again.

# in these days you may not need the while true. i did it long time ago. it is from an old system.
# today you have all those modules like nodejs-cluster etc.