Init.d-Script for unicorn with bundle and rvm

etc.default.unicorn

UNICORN_USER=www-data
UNICORN_GROUP=www-data

BUNDLE_GEMFILE=/var/www/current/Gemfile
RVM_EXE=/usr/local/rvm/bin/rvm

RAILS_ROOT=/var/www/current/
RAILS_ENV=production
RAILS_VERSION=ree

UNICORN_CONFIG="${RAILS_ROOT}/config/unicorn.rb"
UNICORN_PIDFILE=${RAILS_ROOT}/tmp/pids/unicorn.pid

RAILS_EXE=/usr/local/rvm/rubies/ree-1.8.7-2012.02/bin/ruby

etc.init.d.unicorn

#! /bin/sh

### BEGIN INIT INFO
# Provides:		unicorn
# Required-Start:	$remote_fs $syslog
# Required-Stop:	$remote_fs $syslog
# Default-Start:	2 3 4 5
# Default-Stop:		
# Short-Description:	unicorn server init.d script
### END INIT INFO

set -e

umask 022

if test -f /etc/default/unicorn; then
    . /etc/default/unicorn
fi

. /lib/lsb/init-functions

cd $RAILS_ROOT
export BUNDLE_GEMFILE

case "$1" in
  start)
	log_daemon_msg "Starting Unicorn Webserver" "unicorn_rails" || true
	start-stop-daemon --start --chuid $UNICORN_USER:$UNICORN_GROUP --chdir $RAILS_ROOT --pidfile $UNICORN_PIDFILE --exec $RVM_EXE -- $RUBY_VERSION do bundle exec unicorn_rails -c $UNICORN_CONFIG -E $RAILS_ENV -D
	log_end_msg $? || true
	;;
  stop)
	log_daemon_msg "Stopping Unicorn web server" "unicorn_rails" || true
	if start-stop-daemon --stop --quiet --oknodo --pidfile "${UNICORN_PIDFILE}"; then
	    log_end_msg 0 || true
	else
	    log_end_msg 1 || true
	fi
	;;

  restart)
	log_daemon_msg "Restarting Unicorn web server" "unicorn_rails" || true
	kill -s USR2 `cat $UNICORN_PIDFILE`
	log_end_msg $? || true
	;;

  status)
	status_of_proc -p $UNICORN_PIDFILE $RAILS_EXE unicorn_rails && exit 0 || exit $?
	;;

  *)
	log_action_msg "Usage: /etc/init.d/unicorn {start|stop|restart|status}" || true
	exit 1
esac

exit 0