Init script for Graylog Web Interface – CentOS 7 / RHEL 7

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If you have reached this page from my previous article on How to install Graylog2 on CentOS 7 / RHEL 7, you do not have to modify the below init script; just copy and paste content to graylog2-web init file.

This tutorial is for an outdated version of Graylog2. A new version is available here: How To Install Graylog on CentOS 7 / RHEL 7.

Create a init script file.

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# vi /etc/init.d/graylog2web

Place the following content in it, if your graylog-web-interface directory is different from /opt/graylog-web-interface, modify the GRAYLOG2_WEB_HOME variable.

#! /bin/sh
### BEGIN INIT INFO
# Provides: graylog2-web
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Graylog2-web-interface init script
# Description: Graylog2-web-interface init script
### END INIT INFO
## Source function library.
. /etc/init.d/functions
NAME="graylog2-web-interface"
GRAYLOG2_WEB_HOME=/opt/graylog-web-interface ##Path to Graylog Web Interface directory
GRAYLOG2_WEB=$GRAYLOG2_WEB_HOME/bin/graylog-web-interface 
GRAYLOG2_WEB_OUT="/var/log/graylog2-web.log"
PID_FILE="$GRAYLOG2_WEB_HOME/RUNNING_PID"
LOCK_FILE="/var/lock/subsys/${NAME}"
JAVA="/usr/bin/java"
JAVA_OPTS="-Xms${mem}m -Xmx${mem}m -XX:MaxPermSize=${perm}m -XX:ReservedCodeCacheSize=${codecache}m"
RUN_AS_USER=root
if [ ! -r "$GRAYLOG2_WEB" ]; then
echo "Cannot find $GRAYLOG2_WEB"
echo "${GRAYLOG2_WEB} is absent or does not have read permission"
exit 1
fi
touch "$GRAYLOG2_WEB_OUT"
chown $RUN_AS_USER "$GRAYLOG2_WEB_OUT"
start() {
echo "Starting $NAME: "
COMMAND="$GRAYLOG2_WEB >> \"$GRAYLOG2_WEB_OUT\" 2>&1 &"
daemon --check=${NAME} --user=${RUN_AS_USER} --pidfile=${PID_FILE} ${COMMAND}
RETVAL=$?
[ $RETVAL -eq 0 ] && touch $LOCK_FILE
return $RETVAL
}
stop() {
echo "Stopping $NAME: "
killproc -p ${PID_FILE} -d 5 ${NAME}
RETVAL=$?
[ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
return $RETVAL
}
restart() {
stop
sleep 1
start
}
dump() {
echo "Dumping $NAME: "
PID=`cat $PID_FILE`
kill -3 $PID
RETVAL=$?
[ $RETVAL -eq 0 ] && success $"Dumped $NAME." || failure $"Failed to dump $NAME."
return $RETVAL
}
rh_status() {
status -p ${PID_FILE} ${NAME}
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
start
;;
stop)
rh_status_q || exit 0
stop
;;
restart)
restart
;;
status)
rh_status
;;
dump)
rh_status_q || exit 0
dump
;;
condrestart|try-restart)
rh_status_q || exit 0
restart
;;
*)
echo "Usage: $0 {start|stop|status|restart|condrestart|try-restart|dump}"
exit 1
esac
exit $?

Change the permission of the file.

# chmod 755 /etc/init.d/graylog2web

Enable the autostart.

# chkconfig --add graylog2web

# chkconfig graylog2web on

You can start and stop the graylog web interface service using the following commands.

# service graylog2web start

# service graylog2web stop

That’s All!.

Credit: PowerWagon

This tutorial is for an outdated version of Graylog2. A new version is available here: How To Install Graylog on CentOS 7 / RHEL 7.
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