monit nodejs deployment

monitrc

###############################################################################
## Includes
###############################################################################
##
## It is possible to include additional configuration parts from other files or
## directories.
#
#  include /etc/monit.d/*
#
#

set logfile /var/log/monit.log
  
check host nodejs with address 127.0.0.1
    start program = "/etc/init.d/nodestats start"
    stop program  = "/etc/init.d/nodestats stop"
    if failed port 7331 protocol HTTP
        request /ping
        with timeout 10 seconds
        then restart

nodestats

#! /bin/sh

### BEGIN INIT INFO
# Provides:          server.js
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts nodejs and server.js
# Description:       starts nodejs and server.js using forever
### END INIT INFO
NODE_PATH=/usr/local/lib/node_modules
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/bin/forever
NAME=forever
DESC=nodestats

test -x $DAEMON || exit 0

set -e

case "$1" in
  start)
        echo -n "Starting $DESC: "
        exports NODE_PATH=$NODE_PATH
        $DAEMON start /www/OMG-ADD-YOUR-DIRECTORY-HERE-LAL/server.js
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
        $DAEMON stop /www/OMG-ADD-YOUR-DIRECTORY-HERE-LAL/server.js
        echo "$NAME."
        ;;

  restart|force-reload)
        echo -n "Stopping $DESC: "
        $DAEMON stop /www/OMG-ADD-YOUR-DIRECTORY-HERE-LAL/server.js
        echo "$NAME."
        sleep 1
        echo -n "Starting $DESC: "
        exports NODE_PATH=$NODE_PATH
        $DAEMON start /www/OMG-ADD-YOUR-DIRECTORY-HERE-LAL/server.js
        echo "$NAME."
        ;;
  *)
        N=/etc/init.d/$NAME
        echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
        exit 1
        ;;
esac

exit 0

Add the monitrc in your /etc/monit/monitrc file

Move the nodestats to /etc/init.d/nodestats.

And make sure your server.js has a ping hook. In this setup I just add a simple response to the ping requests using

case "/ping":
   res.writeHead( 200, {'Content-Type': 'text/plain'} );
   res.end( "pong" );
   break;