init.d file for selenium

selenium.bash

#!/bin/bash
### BEGIN INIT INFO
# Provides:          selenium
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start selenium at boot time
# Description:       Enable service provided by selenium.
### END INIT INFO

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

DISPLAY_ID=":99"
RUN_AS=root

XVFB=/usr/bin/Xvfb
XVFB_ARGS="$DISPLAY_ID -screen 0 1280x1024x24 -fbdir /var/run -ac"
XVFB_PID_FILE=/var/run/xvfb.pid

JAVA_BIN=/usr/bin/java

SELENIUM_DIR=/opt/selenium
SELENIUM_PID_FILE="$SELENIUM_DIR/selenium.pid"
SELENIUM_JAR_FILE="$SELENIUM_DIR/selenium-server-standalone-2.33.0.jar"
SELENIUM_LOG_FILE="$SELENIUM_DIR/selenium.log"
SELENIUM_DAEMON_OPTS=" -client -jar $SELENIUM_JAR_FILE -log $SELENIUM_LOG_FILE"

export DISPLAY="$DISPLAY_ID.0"

set -e

. /lib/lsb/init-functions

case "$1" in
    start)

        if status_of_proc -p $SELENIUM_PID_FILE "$SELENIUM_JAR_FILE" $SELENIUM_JAR_FILE > /dev/null; then
            log_progress_msg "Service already running"
        else
            log_daemon_msg "Starting virtual X frame buffer"
            log_progress_msg "xvfb"
            start-stop-daemon -c $RUN_AS --start --quiet --pidfile $XVFB_PID_FILE --make-pidfile --background --exec $XVFB -- $XVFB_ARGS

            log_daemon_msg "Starting Selenium server"
            log_progress_msg "selenium"
            start-stop-daemon -c $RUN_AS --start --quiet --background --pidfile $SELENIUM_PID_FILE --make-pidfile --exec $JAVA_BIN -- $SELENIUM_DAEMON_OPTS
        fi
        ;;

    stop)
        if status_of_proc -p $SELENIUM_PID_FILE "$SELENIUM_JAR_FILE" $SELENIUM_JAR_FILE > /dev/null; then
            log_daemon_msg "Stopping Selenium server"
            log_progress_msg "selenium"
            start-stop-daemon --stop --pidfile $SELENIUM_PID_FILE

            log_daemon_msg "Stopping virtual X frame buffer"
            log_progress_msg "xvfb"
            start-stop-daemon --stop --pidfile $XVFB_PID_FILE
        else
            log_progress_msg "Service not running"
        fi
        ;;

    restart|force-reload)
        $0 stop
        sleep 1
        $0 start
	;;

	status)
        status_of_proc -p $SELENIUM_PID_FILE "$SELENIUM_JAR_FILE" $SELENIUM_JAR_FILE && exit 0 || exit $?
    ;;

    *)
      	N=/etc/init.d/selenium
        echo "Usage: $N {start|stop|restart|force-reload|status}" >&2
        exit 1
        ;;
esac