Version 2 (modified by 11 years ago) ( diff ) | ,
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Creating a nagios monitor
This page explains how to create a nagios monitor configuration in puppet. You will need to make changes to get the correct configuration for the specific type of monitoring needed.
Set up an executable
These files are stored in puppet/modules/mayfirst/files/monitor-utils/ you can find examples of different versions of monitoring scripts there.
Set up a cronjob
projects/puppet/modules/mayfirst/templates/monitor-utils/cron.d/mf-monitor
You'll need to add your script to this directory.
Add to utils.pp
puppet/modules/mayfirst/manifests/utils.pp
The code should look something like this, with the correct file from the executable specified.:
file { "/usr/local/sbin/mf-monitor-mailq": source => "puppet:///modules/mayfirst/monitor-utils/mf-monitor-mailq", ensure => present, mode => 755, owner => "root", group => "root" }
Define hostgroup
projects/puppet/modules/mayfirst/files/nagios/nagios3/conf.d/
This code section should look something like this:
define hostgroup { hostgroup_name mailq-servers alias Mail Check Servers }
Define nagios command
puppet/modules/mayfirst/files/nagios/nagios3/commands.cfg
Should look like this:
define command{ command_name check-upgrade command_line /usr/local/share/nagios/plugins/mf-nagios-check-upgrade '$HOSTNAME$' }
Create parsing script
You will also need to create a script that parses the output of the monitoring files.
projects/puppet/modules/mayfirst/files/nagios/nagios-plugins/plugins/mf-SCRIPT-NAME
You can model scripts that already exist to check this.
Finally add the hostgroup to nagios manifest
projects/puppet/modules/mayfirst/manifests/nagios.pp
One example for standard_hostgroups is:
if ( $include_standard_hostgroups == true ) { $standard_hostgroups = [ 'df-servers', 'upgrade-servers', 'mailq-servers' ] $assigned_hostgroups = concat($hostgroups, $standard_hostgroups) } else { $assigned_hostgroups = $hostgroups }
This is from 'define m_nagios_host'.
Make sure all executable scripts have execute permissions