Unicorn init script

gistfile1.txt

#!/bin/sh

APP_ROOT=/var/www/current
PID=/var/www/current/tmp/pids/unicorn.pid
ENV=production
CMD="sudo -u ubuntu /opt/ruby-enterprise-1.8.7-2011.03/bin/bundle exec /opt/ruby-enterprise-1.8.7-2011.03/bin/unicorn_rails -E $ENV -c /var/www/current/config/unicorn.rb -D"

old_pid="$PID.oldbin"

cd $APP_ROOT || exit 1

sig () {
	test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
	test -s $old_pid && kill -$1 `cat $old_pid`
}

workersig () {
  workerpid="/var/www/current/tmp/pids/unicorn.$2.pid"
  
  test -s "$workerpid" && kill -$1 `cat $workerpid`
}

case $1 in
start)
	sig 0 && echo >&2 "Already running" && exit 0
	$CMD
	;;
stop)
	sig QUIT && exit 0
	echo >&2 "Not running"
	;;
force-stop)
	sig TERM && exit 0
	echo >&2 "Not running"
	;;
restart|reload)
	sig HUP && echo reloaded OK && exit 0
	echo >&2 "Couldn't reload, starting '$CMD' instead"
	$CMD
	;;
upgrade)
	sig USR2 && exit 0
	echo >&2 "Couldn't upgrade, starting '$CMD' instead"
	$CMD
	;;
kill_worker)
	workersig QUIT $2 && exit 0
	echo >&2 "Worker not running"
	;;
rotate)
        sig USR1 && echo rotated logs OK && exit 0
        echo >&2 "Couldn't rotate logs" && exit 1
        ;;
*)
	echo >&2 "Usage: $0 <start|stop|restart|upgrade|rotate|force-stop>"
	exit 1
	;;
esac