Matrix Icinga notifier

Send notifications from Icinga(1,2) to a Matrix room.

Dependencies

• CPANM: cpanm LWP LWP::Protocol::https
• Ubuntu/Debian: apt-get install -y libwww-perl

Getting access token

• curl -XPOST -d {type:m.login.password, user:username, password:MyVerySecurePassword} "https://server.domain.com:8448/_matrix/client/r0/login"

Creating config

• cp config.cfg-sample my-config.cfg
• vim my-config.cfg

Creating Icinga (1) notification command

################################################################################
# NOTIFICATIONS BY MATRIX
################################################################################

define command{
	command_name	notify-host-by-matrix
	command_line	/usr/bin/printf "%b" "***** Icinga *****<br>Notification Type: $NOTIFICATIONTYPE$<br>Host: <strong>$HOSTNAME$</strong><br>State: <strong>$HOSTSTATE$</strong><br>Address: <strong>$HOSTADDRESS$</strong><br>Info: <pre><code>$HOSTOUTPUT$</code></pre>Date/Time: $LONGDATETIME$" | /opt/matrix_icinga_notify/send_message.pl -c /run/secrets/my-config.cfg
	}

define command{
	command_name	notify-service-by-matrix
	command_line	/usr/bin/printf "%b" "***** Icinga *****<br>Notification Type: $NOTIFICATIONTYPE$<br>Service: <strong>$SERVICEDESC$</strong><br>Host: <strong>$HOSTALIAS$</strong><br>Address: <strong>$HOSTADDRESS$</strong><br>State: <strong>$SERVICESTATE$</strong><br>Date/Time: $LONGDATETIME$<br>Additional Info:<pre><code>$SERVICEOUTPUT$\n$LONGSERVICEOUTPUT$</code></pre>" | /opt/matrix_icinga_notify/send_message.pl -c /run/secrets/my-config.cfg
	}

Icinga (2) config

The icinga2-code folder contains the necessary code for matrix notifications in Icinga2. Make sure to place your config with Docker Secrets or Kubernetes Secrets at /run/secrets/my-config.cfgor adjust /run/secrets/my-config.cfg in the notification scripts to reflect your needs. The same applies to the location of the perl script. It's assumed to be at /opt/matrix_icinga_notify/send_message.pl

• cp -rp icinga2-code/conf.d/ /etc/icinga2/conf.d/
• cp -rp icinga2-code/scripts/ /etc/icinga2/scripts/
• Debian / Ubuntu: chown nagios:nagios /etc/icinga2/scripts/matrix-*-notification.sh
• RHEL / CentOS: chown icinga:icinga /etc/icinga2/scripts/matrix-*-notification.sh

Usage

# ./send_message.pl --help
echo 'Message text (also <strong>bold</strong>).' | ./send_message.pl -c config.cfg [-ds]
        -c              config file
        -d              debug
        -s              disable SSL cert verification

Known bugs

Debian 8 and CentOS 6

Currently there are different errors running the script on Debian 8 and CentOS 6. Probably it's because of old/missing dependencies. This can be avoided by installing the Perl modules using CPAN or CPANM.