/etc/init.d/xvfb

xvfb.sh

#!/bin/bash
#
# Xvfb
#
# chkconfig: - 90 30
# description: Xvfb
# Source function library.
. /etc/init.d/functions

lockfile="/var/lock/subsys/xvfb"
pidfile="/var/run/xvfb.pid"
logfile="/var/log/xvfb.log"
prog="Xvfb"

USER=root
XVFB=/usr/bin/Xvfb
OPTION=":99 -screen 0 1024x768x8"

RETVAL=0

start() {
    # http://superuser.com/questions/870702/aws-ec2-linux-headless-firefox-issue-xvfb-undefined-symbol-pixman-glyph-cache
    if [ -f "/usr/local/lib/libpixman-1.so.0" ]
    then
        nm -g /usr/local/lib/libpixman-1.so.0 | grep -q pixman_glyph_cache_create
        sym_exist=$?
        if [ ${sym_exist} -ne 0 ]
        then
            rm -f /usr/local/lib/libpixman-1.so.0
        fi
    fi
    echo -n $"Starting ${prog}: "
    sudo -u ${USER} ${XVFB} ${OPTION} >> ${logfile} 2>&1 &
    RETVAL=$?
    pid=$!
    echo ${pid} > ${pidfile}

    [ ${RETVAL} -eq 0 ] && echo_success || echo_failure

    echo
    [ ${RETVAL} -eq 0 ] && touch ${lockfile}
    return ${RETVAL}
}

stop() {
    echo -n $"Stopping ${prog}: "
    killproc -p ${pidfile} ${prog}
    RETVAL=$?
    echo
    [ ${RETVAL} -eq 0 ] && rm -f ${lockfile} ${pidfile}
    return ${RETVAL}
}

restart() {
    stop
    start
}


case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status -p ${pidfile} ${prog}
        RETVAL=$?
        ;;
    restart)
        restart
        ;;
  *)
  echo $"Usage: $0 {start|stop|restart}"
  exit 1
esac