Unicorn /etc/init.d/unicorn script

etc-init.d-unicorn.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides:          Unicorn
# Required-Start:    $network $remote_fs
# Required-Stop:     $network $remote_fs $syslog
# Default-Start:     3 5
# Default-Stop:      0 1 2 4 6
# Short-Description: Start unicorn web server at boot - port 3000
# Description:       Enable cancerventetid application at boot time. Start the unicorn web server (port 3000)
### END INIT INFO
#
#
# Add the script to /etc/init.d/APP_NAME and run the following commands to get it to run on boot:
#
# sudo chmod +x /etc/init.d/APP_NAME
# sudo update-rc.d APP_NAME defaults
#
# And that should do it?~@?
#
# Use this as a basis for your own Unicorn init script.
# Change APPLICATION to match your app.
# Make sure that all paths are correct.

set -u
set -e

# Change these to match your app:
APP_NAME=cancerventetid
APP_ROOT="/srv/www/$APP_NAME/current"
#PID="/srv/www/$APP_NAME/shared/pids/unicorn.pid"
PID="$APP_ROOT/tmp/pids/unicorn.pid"
USER=cancerventetid
ENV=production

GEM_HOME="/srv/www/cancerventetid/shared/bundle/ruby/1.9.1/"

UNICORN_OPTS="-D -E $ENV -c $APP_ROOT/config/unicorn/production.rb"

SET_PATH="cd $APP_ROOT; export GEM_HOME=$GEM_HOME"
CMD="$SET_PATH; $GEM_HOME/bin/unicorn $UNICORN_OPTS"

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-help} in
start)
	sig 0 && echo >&2 "Already running" && exit 0
	su - $USER -c "$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"
	su - $USER -c "$CMD"
	;;
upgrade)
	sig USR2 && exit 0
	echo >&2 "Couldn't upgrade, starting '$CMD' instead"
	su - $USER -c "$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