Nagios service startup script

etc-init.d-nagios.sh

#!/bin/sh

# Nagios   Startup script for the Nagios monitoring daemon
#
# chkconfig:   - 85 15
# description:   Nagios is a service monitoring system
# processname: nagios
# config: /etc/nagios/nagios.cfg
# pidfile: /var/nagios/nagios.pid
#
### BEGIN INIT INFO
# Provides:      nagios
# Required-Start:   $local_fs $syslog $network
# Required-Stop:   $local_fs $syslog $network
# Short-Description:   start and stop Nagios monitoring server
# Description:      Nagios is is a service monitoring system
### END INIT INFO

# Source function library.
# . /etc/rc.d/init.d/functions
. /lib/lsb/init-functions

prefix="/usr/local/nagios"
exec_prefix="${prefix}"
exec="${exec_prefix}/bin/nagios"
prog="nagios"
config="${prefix}/etc/nagios.cfg"
pidfile="${prefix}/var/nagios.lock"
user="nagios"
group="nagios"
checkconfig="false"
ramdiskdir="/var/nagios/ramcache"

test -e /etc/sysconfig/$prog && . /etc/sysconfig/$prog

lockfile=/var/lock/$prog
USE_RAMDISK=${USE_RAMDISK:-0}

if test "$USE_RAMDISK" -ne 0 && test "$RAMDISK_SIZE"X != "X"; then
   ramdisk=`mount |grep "$ramdiskdir type tmpfs"`
   if [ "$ramdisk"X == "X" ]; then
      mkdir -p -m 0755 $ramdiskdir
      mount -t tmpfs -o size=${RAMDISK_SIZE}m tmpfs $ramdiskdir
      mkdir -p -m 0755 $ramdiskdir/checkresults
      chown -R $user:$group $ramdiskdir
   fi
fi

check_config() {
   TMPFILE="/tmp/.configtest.$$"
   /usr/sbin/service nagios configtest > "$TMPFILE"
   WARN=`grep ^"Total Warnings:" "$TMPFILE" |awk -F: '{print \$2}' |sed s/' '//g`
   ERR=`grep ^"Total Errors:" "$TMPFILE" |awk -F: '{print \$2}' |sed s/' '//g`

   if test "$WARN" = "0" && test "${ERR}" = "0"; then
      echo "OK - Configuration check verified" > /var/run/nagios.configtest
      chmod 0644 /var/run/nagios.configtest
      /bin/rm "$TMPFILE"
   return 0
   else
      # We'll write out the errors to a file we can have a
      # script watching for
      echo "WARNING: Errors in config files - see log for details: $TMPFILE" > /var/run/nagios.configtest
      egrep -i "(^warning|^error)" "$TMPFILE" >> /var/run/nagios.configtest
      chmod 0644 /var/run/nagios.configtest
      cat "$TMPFILE"
   exit 8
   fi
}

start() {
   test -x $exec || exit 5
   test -f $config || exit 6
   if test "$checkconfig" = "false"; then
      check_config
   fi
   echo -n $"Starting $prog: "
   # We need to _make sure_ the precache is there and verified
   # Raise priority to make it run better
   daemon --user=$user -- $exec -d $config
   #touch $lockfile
   retval=$?
   echo
   test $retval -eq 0 && touch $lockfile
   return $retval
}

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


restart() {
   check_config
   checkconfig="true"
   stop
   start
}

reload() {
   echo -n $"Reloading $prog: "
   killproc -p ${pidfile} $exec -HUP
   RETVAL=$?
   echo
}

force_reload() {
   restart
}

case "$1" in
   start)
      status_of_proc $prog && exit 0
      $1
      ;;
   stop)
      status_of_proc $prog|| exit 0
      $1
      ;;
   restart)
      $1
      ;;
   reload)
      status_of_proc $prog || exit 7
      $1
      ;;
   force-reload)
      force_reload
      ;;
   status)
      status_of_proc $prog
      ;;
   condrestart|try-restart)
      status_of_proc $prog|| exit 0
      restart
      ;;
   configtest)
      $nice su -s /bin/bash - nagios -c "$corelimit >/dev/null 2>&1 ; $exec -vp $config"
      RETVAL=$?
      ;;
   *)
      echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
      exit 2
esac
exit $?