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Current File : //lib64/nagios/plugins/nccustom/check_postfix_queue.sh
#!/bin/bash
# Auteur : Belgotux
# Site : www.monlinux.net
# Licence : CC-BY-NC-SA
# Version : 1.0
# Date : 21/08/18
# changelog
# v1.0 check different postfix queue
# example : command[check_mailqueue]=/usr/lib/nagios/plugins/check_postfix_queue.sh --wa 100 --ca 500 --wd 500 --cd 1000 --wo 1 --co 100

#
# Updated by Bogdan Kukharskiy (added queue_req warning and critical options, removed queue_size kB from output, ignored corrupted and bounced in final step)
#

#possibles states
STATE_OK=0
STATE_WARNING=1
STATE_CRITICAL=2
STATE_UNKNOWN=3

#default options
postfix_dir=/var/spool/postfix
warning_queue_req=1500
critical_queue_req=2000
warning_active=500
critical_active=1000
warning_deferred=1000
critical_deferred=1500
warning_other=1000
critical_other=1500


function usage {
echo "$0 [--dir|-d postfix_dir] [--wq|-w warning_queue_req] [--cq|-c critical_queue_req] [--wa warning_active] [--ca critical_active] [--wd warning_deferred] [--cd critical_deferred] [--wo warning_other] [--co critical_other] [--dc docker_container]" 1>&2

}


if [ -z $# ]; then
	echo "Error : need argument!" 1>&2
	usage
	exit $STATE_UNKNOWN
fi

while test -n "$1"; do
    case "$1" in
        --dir|-d ) postfix_dir=$2
				shift;;
        --wq|-w ) warning_queue_req=$2
				shift;;
        --cq|-c ) critical_queue_req=$2
				shift;;
        --wa ) warning_active=$2
				shift;;
        --ca ) critical_active=$2
				shift;;
        --wd ) warning_deferred=$2
				shift;;
        --cd ) critical_deferred=$2
				shift;;
        --wo ) warning_other=$2
				shift;;
        --co ) warning_other=$2
				shift;;
        --dc ) docker_container=$2
				shift;;
	*) echo "Wrong arguments!" 1>&2
	   usage
           exit $STATE_UNKNOWN ;;
    esac
    shift
done

# pre-command definition if container name is specified
if [ "$docker_container" ]; then
    docker_command="/usr/bin/docker container exec -i $docker_container"
    queue=$($docker_command /usr/bin/mailq | tail -n 1)
else
    docker_command=""
    queue=$(/usr/bin/mailq | tail -n 1)
fi

# queue empty = ok
if [ "$queue" == "Mail queue is empty" ] ; then	
	perfdata="'req'=0;$warning_queue_req;$critical_queue_req; 'size'=0KB;;; 'active'=0;$warning_active;$critical_active; 'bounce'=0;$warning_other;$warning_other; 'corrupt'=0;$warning_other;$warning_other; 'deferred'=0;$warning_deferred;$critical_deferred; 'maildrop'=0;$warning_other;$warning_other; "
	output="$queue"
	echo "OK - ${output} | ${perfdata}"
	exit $STATE_OK
else
	queue_req=$(echo $queue | cut -d ' ' -f 5)
	queue_size=$(echo $queue | cut -d ' ' -f 2)	# in KB
	queue_active=$($docker_command find $postfix_dir/active -type f | wc -l)
	queue_bounce=$($docker_command find $postfix_dir/bounce -type f | wc -l)
	queue_corrupt=$($docker_command find $postfix_dir/corrupt -type f | wc -l)
	queue_deferred=$($docker_command find $postfix_dir/deferred -type f | wc -l)
	queue_maildrop=$($docker_command find $postfix_dir/maildrop -type f | wc -l)
	perfdata="'req'=$queue_req;$warning_queue_req;$critical_queue_req; 'size'=${queue_size}KB;;; 'active'=$queue_active;$warning_active;$critical_active; 'bounce'=$queue_bounce;$warning_other;$warning_other; 'corrupt'=$queue_corrupt;$warning_other;$warning_other; 'deferred'=$queue_deferred;$warning_deferred;$critical_deferred; 'maildrop'=$queue_maildrop;$warning_other;$warning_other; "
fi

#echo $perfdata
#echo "postfix_dir $postfix_dir - warning_active $warning_active - critical_active $critical_active - warning_deferred $warning_deferred - critical_deferred $critical_deferred - warning_other $warning_other - critical_other $critical_other"

returnCrit=0
returnWarn=0
errorString=""
#Check critical and warning state for each queue
if [ $queue_req -ge $critical_queue_req ]; then
    returnCrit=1
	errorString="$errorString - CRIT total queue > $critical_queue_req ($queue_req)"
elif [ $queue_req -ge $warning_queue_req ]; then
    returnWarn=1
	errorString="$errorString - WARN total queue > $warning_queue_req ($queue_req)"
fi
if [ $queue_active -ge $critical_active ]; then
    returnCrit=1
	errorString="$errorString - CRIT $queue_active > $critical_active actives"
elif [ $queue_active -ge $warning_active ]; then
    returnWarn=1
	errorString="$errorString - WARN $queue_active > $warning_active actives"
fi
if [ $queue_bounce -ge $critical_other ]; then
    returnCrit=1
	errorString="$errorString - CRIT $queue_bounce > $critical_other bounce"
elif [ $queue_bounce -ge $warning_other ]; then
    returnWarn=1
	errorString="$errorString - CRIT $queue_bounce > $warning_other bounce"
fi
#if [ $queue_corrupt -ge $critical_other ]; then
#    returnCrit=1
#	errorString="$errorString - CRIT $queue_corrupt > $critical_other corrupt"
#elif [ $queue_corrupt -ge $warning_other ]; then
#    returnWarn=1
#	errorString="$errorString - WARN $queue_corrupt > $warning_other corrupt"
#fi
if [ $queue_deferred -ge $critical_deferred ]; then
    returnCrit=1
	errorString="$errorString - CRIT $queue_deferred > $critical_deferred deferred"
elif [ $queue_deferred -ge $warning_deferred ]; then
    returnWarn=1
	errorString="$errorString - WARN $queue_deferred > $warning_deferred deferred"
fi
#if [ $queue_maildrop -ge $critical_other ]; then
#    returnCrit=1
#	errorString="$errorString - CRIT $queue_maildrop > $critical_other maildrop"
#elif [ $queue_maildrop -ge $warning_other ]; then
#    returnWarn=1
#	errorString="$errorString - WARN $queue_maildrop > $warning_other maildrop"
#fi

#output="$queue_req request(s) ($queue_size kB)"
output="$queue_req request(s)"
if [ $returnCrit == 0 ] && [ $returnWarn == 0 ] ; then
	echo "OK - ${output} | ${perfdata}"
	returnCode=$STATE_OK
elif [ $returnCrit == 0 ] && [ $returnWarn == 1 ] ; then
	echo "WARNING - ${output}${errorString} | ${perfdata}"
	returnCode=$STATE_WARNING
else
	echo "CRITICAL - ${output}${errorString} | ${perfdata}"
	returnCode=$STATE_CRITICAL
fi

exit $returnCode
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