#!/bin/ksh
#
# Servercheck - thats all it does -
# Script to check the server health for various processes
#
# Written from scratch by Gregg Lain 10/13/2007 gregg@mochabomb.com
#
###########################################################################################################
#
#  Variables
#
email=`grep email /usr/local/ervercheck.conf | sed 's/email: //'`
pager=`grep pager /usr/local/servercheck.conf | sed 's/pager: //'`
timestamp=`date '+%m-%d-%y-%H:%M:%S'`
logdir="/var/log"
tmpfile="$logdir/$timestamp"
touch $tmpfile
Server=`hostname`
#
##########################################################################################################
#
# Initialize the incident flag - since we run with a cron, this is not in a loop...
incidentflag=0
#

##########################################################################################################
#
#  1.  Check out a process function
#
for procstatus in `grep service /usr/local/servercheck.conf |  egrep -v '^#' | sed 's/service: //'`; do
      status=`/sbin/service $procstatus status`
      echo $status | egrep 'running|OK' 1> /dev/null
      if [ $? -ne 0 ]; then     # something is not running
            # incidentflag=$(($incidentflag+1))
            incidentflag=1
            echo "(servercheck) $Server: $procstatus not running: $timestamp " >> $tmpfile
            mail $email -s "$Server: $procstatus not running" < $tmpfile
            /sbin/service $procstatus restart
            restart=$?
            servicePID=`ps -ef | grep $procstatus | egrep -v grep | head -1 | awk {'print $2'}`
            if [ $restart -ne 0 ]; then     # something cannot be started
                 echo "Alert! $Server $procstatus cannot be started" > $tmpfile
                 echo "Restart $procstatus via shell or webmin" >> $tmpfile
                 mail $email -s "** Alert ** $Server: $procstatus cannot be started" < $tmpfile
            fi
            if [ $restart -eq 0 ]; then     # something was restarted
                 echo "$Server $procstatus re-started" > $tmpfile
                 echo "$procstatus running with PID of $servicePID" >> $tmpfile
                 mail $email -s "$Server $procstatus restarted successfully" < $tmpfile
            fi
      fi
done
#
#
########################################################################################################
#
#  3. Garbage collection
#
cat $tmpfile >> /var/log/servercheck
rm $tmpfile