Upstart config file for node.js service

znapi.conf

#znapi.conf                                                                    
description "node.js zn api"                                        

env FULL_PATH="/home/zn/app.prod"                          
env NODE_PATH="/usr/bin/node"                                  
env LOG="/var/log/znapi.log"
env PIDFILE="/var/run/znapi.pid"

# Start up when the system hits any normal runlevel, and 
start on filesystem or runlevel [2345]     
#start when mongod started
#start on started mongod
# shuts down when the system goes to shutdown or reboot.
stop on runlevel [06]                                                              

respawn
respawn limit 50 5

pre-start script                                                    
    # check that log file exist or create it
    test -f $LOG || { touch $LOG; chown zn:zn $LOG; }

    # Date format same as (new Date()).toISOString() for consistency
    echo "[`date`] (sys) Starting" >> $LOG            
end script                                                          

script                                                                       
    export NODE_ENV=production
    #echo $$ > /var/run/znapi.pid
    #cd $FULL_PATH                                                            
    #exec sudo -u zn sh -c "$NODE_PATH server.js >> $LOG 2>&1"
    #exec $NODE_PATH server.js >> $LOG 2>&1
    exec start-stop-daemon --start -m -p $PIDFILE -c zn -d $FULL_PATH -x server.js >> $LOG 2>&1
end script                                                                   
                                                                             
pre-stop script                                                              
    rm $PIDFILE                                                   
    echo "[`date`] (sys) Stopping" >> $LOG                    
end script