Init for unicorn and puppet

unicorn

#! /bin/bash

### BEGIN INIT INFO
# Provides:          unicorn-puppet
# Required-Start:    $local_fs $remote_fs $network $syslog
# Required-Stop:     $local_fs $remote_fs $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the unicorn app server
# Description:       starts unicorn puppet
### END INIT INFO

USER=root
DAEMON=unicorn
APP_PATH=/etc/puppet
DAEMON_OPTS="-c $APP_PATH/unicorn.rb -D"
NAME=unicorn
DESC="Unicorn app for $USER"
PID=/var/run/puppet/puppet_unicorn.pid
PATH_BIN=/usr/local

# Tooks this function from https://gist.github.com/zmalltalker/5539976
readpid() {
    if [ -f $PID ]; then
      read unicorn_pid < $PID
    	return 0
    else
	    return 1
    fi
}

case "$1" in
  start)

        CD_TO_APP_DIR="cd $APP_PATH"
        START_DAEMON_PROCESS="${PATH_BIN}/bin/$DAEMON $DAEMON_OPTS"
        echo -n "Starting $DESC: "
        $CD_TO_APP_DIR > /dev/null 2>&1 && $START_DAEMON_PROCESS
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
        kill -QUIT `cat $PID`
        echo "$NAME."
        ;;
  restart)
        echo -n "Restarting $DESC: "
        kill -USR2 `cat $PID`
        echo "$NAME."
        ;;
  status)
       if readpid; then
	       ps -p $unicorn_pid >/dev/null 2>&1
	       echo "Unicorn running"
	       retval=0
       else
	       echo "Unicorn not running"
	       retval=4
       fi
  ;;
  reload)
        echo -n "Reloading $DESC configuration: "
        kill -HUP `cat $PID`
        echo "$NAME."
        ;;

  rotate)
        echo -n "Rotating logs $DESC: "
        kill -USR1 `cat $PID`
        echo "$NAME."
        ;;

  *)
        echo "Usage: $NAME {start|stop|status|restart|reload}" >&2
        exit 1
        ;;
esac

exit 0