gistfile1.sh

#!/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:      0 1 6
# Short-Description: Start unicorn application server
# Description:       Starts the IRIS application server on boot
### END INIT INFO

set -u
set -e
# Simple nginx initscript
# Save to /etc/init.d/unicorn, chmod 755, chown root

# CHANGE ME
APP_ROOT=/home/username/iris


PID=$APP_ROOT/tmp/pids/unicorn.pid
ENV=production
CMD="/usr/local/bin/unicorn_rails -D -E $ENV -c config/unicorn.rb"

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`
}

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
	;;
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