I have 2 Asterisk Check examples, one I use for a simple 1 line setup that makes sure the phone is registered and either "Idle" or "InUse" the other checks for a SIP and Device state is "OK".
Note: For CentOS 7 you may need to disable the follwing line in /etc/sudoers to run script in Cron.
#Defaults requiretty
sudo visudo && sudo service sudo restart
xymon ALL=(ALL) NOPASSWD: /usr/sbin/asterisk
Example 1 for Simple check on 1 Device status
cat << 'EOL' >/usr/share/xymon-client/ext/asterisk.sh
#!/bin/sh
COLUMN=asterisk
COLOR=green
MSG='sudo asterisk -rx "core show hints" | grep "SIP/201&Custom:DND20 State:{Idle|InUse}'
#In this test, if var = empty = RED
var="$(sudo asterisk -rx "core show hints" | grep "SIP/201&Custom:DND20 State:Idle")"
var1="$(sudo asterisk -rx "core show hints" | grep "SIP/201&Custom:DND20 State:InUse")"
cmd="$(sudo asterisk -rx "core show hints")"
if [ -z "$var" ] && [ -z "$var1" ]
then
COLOR=red
MSG="${MSG}
FAILED
"${cmd}"
"
else
MSG="${MSG}
SUCCESS
"${cmd}"
"
fi
# Leave the rest of script alone
# Tell Xymon about it
$XYMON $XYMSRV "status $MACHINE.$COLUMN $COLOR `date`
${MSG}
"
exit 0
EOL
chown xymon:xymon /usr/share/xymon-client/ext/asterisk.sh
chmod 777 /usr/share/xymon-client/ext/asterisk.sh
cat << 'EOL' >/etc/xymon-client/client.d/asterisk.cfg
[asterisk]
ENVFILE $XYMONCLIENTHOME/etc/xymonclient.cfg
CMD $XYMONCLIENTHOME/ext/asterisk.sh
LOGFILE $XYMONCLIENTHOME/logs/asterisk.log
INTERVAL 15m
EOL
chown xymon:xymon /etc/xymon-client/client.d/asterisk.cfg
chmod 777 /etc/xymon-client/client.d/asterisk.cfg
/usr/share/xymon-client/bin/xymoncmd /usr/share/xymon-client/ext/asterisk.sh
/etc/init.d/xymon-client restart
Example 2 check SIP Registered and Device=OK (Only use if device is hardwired and should always be OK!)
cat << 'EOL' >/usr/share/xymon-client/ext/asterisk.sh
#!/bin/sh
COLUMN=asterisk
COLOR=green
MSG='asterisk -rx "sip show peers" | grep "{SIP|DEVICE}OK"'
#In this test, if var = empty = RED
var="$(sudo asterisk -rx "sip show peers" | grep "SIP.*OK")"
var1="$(sudo asterisk -rx "sip show peers" | grep "DEVICE.*OK")"
cmd="$(sudo asterisk -rx "sip show peers")"
if [ -z "$var" ] && [ -z "$var1" ]
then
COLOR=red
MSG="${MSG}
FAILED
""
"${cmd}"
"
else
MSG="${MSG}
SUCCESS
""
"${cmd}"
"
fi
# Leave the rest of script alone
# Tell Xymon about it
$XYMON $XYMSRV "status $MACHINE.$COLUMN $COLOR `date`
${MSG}
"
exit 0
EOL
chown xymon:xymon /usr/share/xymon-client/ext/asterisk.sh
chmod 777 /usr/share/xymon-client/ext/asterisk.sh
cat << 'EOL' >/etc/xymon-client/client.d/asterisk.cfg
[asterisk]
ENVFILE $XYMONCLIENTHOME/etc/xymonclient.cfg
CMD $XYMONCLIENTHOME/ext/asterisk.sh
LOGFILE $XYMONCLIENTHOME/logs/asterisk.log
INTERVAL 15m
EOL
chown xymon:xymon /etc/xymon-client/client.d/asterisk.cfg
chmod 777 /etc/xymon-client/client.d/asterisk.cfg
/usr/share/xymon-client/bin/xymoncmd /usr/share/xymon-client/ext/asterisk.sh
/etc/init.d/xymon-client restart
On Server :
sudo service xymon restart && sudo service apache2 restart