swatchout.sh

swatchout.sh

#!/bin/bash

### USAGE:
# execute from swatch and only swatch
# exec echo '$_' | swatchout.sh <NAME> <SECONDS> <WARNING_EVENTS> <CRITICAL_EVENTS>

EMAIL="[email protected]"


NAME=$1
SECONDS=$2
EVENTS_WARN=$3
EVENTS_CRIT=$4
LOGFILE=/tmp/${NAME}
NOW=`date +%s`

trap 'rm $LOGFILE 2> /dev/null ; rm $LOGFILE.btime 2> /dev/null ; exit 255' TERM INT

if [ -f ${LOGFILE}.btime ]
then
  AGE=`stat -c %Z ${LOGFILE}.btime`
  sec=`expr $NOW - $AGE`
  lines=`wc -l ${LOGFILE} | awk '{print $1}'`
  if [ $sec -ge $SECONDS ]
  then
    if [ $lines -ge $EVENTS_CRIT ]; then
      report=`mktemp`
      echo "Subject: ${NAME} ERRORS CRITICAL: MORE THAN ${EVENTS_CRIT} EVENTS IN ${SECONDS} SECONDS: ${lines} EVENTS" > $report
      echo "Relevant log output below:" >> $report
      echo "" >> $report
      cat $LOGFILE >> $report
      rm ${LOGFILE}
      rm ${LOGFILE}.btime
      sleep 2
      sendmail $EMAIL < $report
      rm $report
    elif [ $lines -gt $EVENTS_WARN ]; then
      report=`mktemp`
      echo "Subject: ${NAME} ERRORS WARNING: MORE THAN ${EVENTS_WARN} EVENTS IN ${SECONDS} SECONDS: ${lines} EVENTS" > $report
      echo "Relevant log output below:" >> $report
      echo "" >> $report
      cat $LOGFILE >> $report
      rm ${LOGFILE}
      rm ${LOGFILE}.btime
      sleep 2
      sendmail $EMAIL < $report
      rm $report
    fi
    rm ${LOGFILE} 2> /dev/null
    rm ${LOGFILE}.btime 2> /dev/null
  fi
else
  touch ${LOGFILE}.btime
fi

read input
echo $input >> $LOGFILE