Managing Nagios With Puppet

Prerequisites

This assumes you have Puppet installed with stored configs configured already.

Server

class nagios::server {
         package { [ "nagios" ]:
                ensure => latest;
         }
         service { "nagios":
                ensure => running,
                enabled => true,
                }
        }
 
        # Hack for bug #3299 where nagios stuff is root:600
        file { ["/etc/nagios/hosts.d/", "/etc/nagios/services.d/"]:
                ensure => directory,
                mode => 644,
                recurse => true,
        }

        # Collect and instantiate all the puppet stuff
        Nagios_host <<||>>
        Nagios_service <<||>>

}

Client

class nagios::client {
        package { [ "nrpe", "nagios-plugins-all"]:
                ensure => latest,
                }
        file { "/etc/nagios/nrpe.cfg":
                source => "puppet:///modules/nagios/nrpe.cfg",
                notify => Service["nrpe"],
        }
        service { "nrpe":
                ensure => running,
                enabled => true,
        }
 
      # Virtual definition that will become real on the server
      @@nagios_host { $fqdn:
         ensure => present,
         alias => $hostname,
         address => $ipaddress,
         use => "generic-host",
         target => "/etc/nagios/hosts.d/$fqdn.cfg",
         notify => Service["nagios"],
      }
}

References

• http://projects.puppetlabs.com/projects/1/wiki/Nagios_Patterns