105 lines
2.9 KiB
Plaintext
105 lines
2.9 KiB
Plaintext
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#!/usr/bin/env bash
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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# ===============
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# check_postfixprocessed - plugin to check the number of mail processed by parsing logfiles
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# ===============
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# * mail processor written by Cecil Westerhof & Modifications for nagios by Frank IJskes
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# * Christian Nutz identified the IF as slow on large logfiles, by only checking from the bottom up performance went back to normal
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# version 2 uses AWK to improve processing / lower cpu load
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# plugin return codes:
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# 0 OK
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# 1 Warning
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# 2 Critical
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# 3 Unknown
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NO_OF_SECONDS=300
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POSTFIX_LOG="/var/log/mail.log"
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while getopts "hvw:c:" opt
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do
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case $opt in
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h)
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showhelp=1
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break
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;;
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w)
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warning="$OPTARG"
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;;
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c)
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critical="$OPTARG"
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;;
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v)
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verbose=1
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;;
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esac
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done
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printUsage() {
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echo "Usage: $0 [-h] [-v] -w <warning> -c <critical>"
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echo ""
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echo "Example: $0 -w 50 -c 100"
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}
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printHelp() {
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printUsage
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echo ""
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echo "This plugin checks the number of messages processed by Postfix in the last 5 minutes."
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echo ""
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echo "For more details, see inside the script ;)"
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echo ""
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exit 3
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}
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if [ "$showhelp" = "1" ]; then
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printHelp
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exit 3
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fi
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if [ ! "$warning" ] || [ ! "$critical" ]; then
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printUsage
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exit 3
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fi
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if [ $warning -ge $critical ]; then
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echo "<warning> has to be smaller than <critical>!"
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exit 3
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fi
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if [ ! "$POSTFIX_LOG" ]; then
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echo "Could not find postfix log!"
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exit 3
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fi
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countSentMessages () {
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NOW=`date +%s`
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DATE_FROM=`awk -v now=$NOW -v seconds=$NO_OF_SECONDS 'BEGIN{print strftime("%b %d %T", now-seconds)}'`
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DATE_TO=`awk -v now=$NOW 'BEGIN{print strftime("%b %d %T", now)}'`
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echo `awk '$0>=from && $0<=to' from="$DATE_FROM" to="$DATE_TO" ${POSTFIX_LOG} | grep ' postfix/smtp\[.*, status=sent ' | wc -l`
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}
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sentMessagesCount=`countSentMessages`
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echo "Messages processed in the last $NO_OF_SECONDS seconds: $sentMessagesCount | mailsprocessed=$sentMessagesCount"
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if [ "$sentMessagesCount" -ge "$critical" ]; then
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exit 2
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elif [ "$sentMessagesCount" -ge "$warning" ]; then
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exit 1
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else
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exit 0
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fi
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