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README.md
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README.md
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# Icinga/Nagios plugins to check an Asterisk
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This repository provide a collection of scripts could be used as Icinga/Nagios check plugins to check an Asterisk installation.
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## Installation
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```
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git clone https://gitea.zionetrix.net/bn8/check_asterisk.git /usr/local/src/check_asterisk
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mkdir -p /usr/local/lib/nagios/plugins
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cd /usr/local/src/check_asterisk
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for i in /usr/local/src/check_asterisk/check_*; do ln -s $(realpath $i) /usr/local/lib/nagios/plugins/$(basename $i); done
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```
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## Copyright
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Copyright (c) 2022 Benjamin Renard
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## License
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 3
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as published by the Free Software Foundation.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#!/bin/bash
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DEBUG=0
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WARNING_HOURS=3
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CRITICAL_HOURS=6
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function usage() {
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[ -n "$1" ] && echo "$1" && echo
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echo "Usage : $0 [-cX] [-wX] [-d]"
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echo " -h Show this help message"
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echo " -d Enable debug mode"
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echo " -c[X] Specify critical call duration threshold"
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echo " -w[X] Specify warning call duration threshold"
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}
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function debug() {
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[ $DEBUG -eq 1 ] && echo -e "$( date "+%Y/%m/%d %H:%M:%S" ) - $1"
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}
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CRITICAL=10
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WARNING=8
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DEBUG=0
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for arg in $@
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do
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if [ $( echo $arg|egrep -c '^-[cwdh][0-9]*$' ) -gt 0 ]
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then
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a=$( echo $arg|sed 's/^-\([cwdh]\).*$/\1/' )
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v=$( echo $arg|sed 's/^-[cwdh]//' )
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case $a in
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c)
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CRITICAL_HOURS=$v
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;;
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w)
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WARNING_HOURS=$v
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;;
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d)
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DEBUG=1
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;;
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h)
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usage
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exit 0
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;;
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esac
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else
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usage "Invalid argument '$arg'"
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fi
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done
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let WARNING_SECONDS=WARNING_HOURS*3600
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let CRITICAL_SECONDS=CRITICAL_HOURS*3600
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STATE=OK
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EXITCODE=
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CRITICAL=0
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CRITICAL_CHANNELS=""
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WARNING=0
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WARNING_CHANNELS=""
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OK=0
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debug "Retreive current channels info using rasterisk..."
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## Output example for asterisk cli commande 'core show channels concise' :
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## format :
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## 1 2 3 4 5 6 7 8 9 10 11 12 13 14
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## chanid!context!exten!prio!state!app!appdata!callerid![?]![?]![?]!duration!bridgedtochan![?]
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## SIP/trunk-00010bc5!incoming!02XXXXXX19!1!Down!AppDial!(Outgoing Line)!02XXXXXX19!!!3!0!(None)!1447335911.168247
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## SIP/trunk-00010bc0!macro-callqueue!s!4!Up!Queue!natlrecouvrement,,,,120!09XXXXXX68!!!3!19!(None)!1447335892.168238
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CURRENT_CHANNELS=$( /usr/bin/sudo -u root /usr/sbin/rasterisk -rnx 'core show channels concise' | grep -v '^CBAnn/' | grep -Ev "^Setting\s+max\s+files")
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debug "Current channels:\n$CURRENT_CHANNELS"
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IFS="
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"
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for line in $CURRENT_CHANNELS
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do
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if [ $(echo $line | grep -c "^Message/ast_msg_queue") -eq 1 ]
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then
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debug "Info Message/ast_msg_queue channel (line: $line)"
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continue
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fi
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channel=$( echo -e "$line"|cut -d'!' -f1 )
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duration=$( echo -e "$line"|cut -d'!' -f12 )
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debug "Channel '$channel' duration: '$duration'"
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if [ $duration -gt $CRITICAL_SECONDS ]
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then
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debug "Channel '$channel' duration is CRITICAL"
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let CRITICAL=CRITICAL+1
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CRITICAL_CHANNELS="$CRITICAL_CHANNELS $channel"
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elif [ $duration -gt $WARNING_SECONDS ]
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then
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debug "Channel '$channel' duration is WARNING"
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let WARNING=WARNING+1
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WARNING_CHANNELS="$WARNING_CHANNELS $channel"
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else
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debug "Channel '$channel' duration is OK"
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let OK=OK+1
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fi
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done
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debug "Critical channels count: $CRITICAL ($CRITICAL_CHANNELS)"
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debug "Warning channels count: $WARNING ($WARNING_CHANNELS)"
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debug "OK channels count: $OK"
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if [ $CRITICAL -gt 0 ]
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then
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STATE=CRITICAL
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EXITCODE=2
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MSG="$CRITICAL channels open since more than $CRITICAL_HOURS hours"
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elif [ $WARNING -gt 0 ]
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then
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STATE=WARNING
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EXITCODE=1
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MSG="$WARNING channels open since more than $WARNING_HOURS hours"
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else
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STATE=OK
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EXITCODE=0
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MSG="$OK channels open since less than $WARNING_HOURS hours"
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fi
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echo "$STATE - $MSG|ok=$OK,warning=$WARNING,critical=$CRITICAL"
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[ -n "$CRITICAL_CHANNELS" ] && echo "Critical channels :$CRITICAL_CHANNELS"
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[ -n "$WARNING_CHANNELS" ] && echo "Warning channels :$WARNING_CHANNELS"
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exit $EXITCODE
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