README.md

datacat implementation of nagios configuration

These are exported resources for great justice. The intent here is that you can multiply declare the same service and just generate one service definition - this is a usecase of the #puppet user watchman_.

http://richardc.unixbeard.net/2013/02/puppet-concat-patterns/ for more context

init.pp

class nagios {
  datacat { '/etc/nagios/objects/services.cfg':
    template => 'nagios/services.cfg.erb',
  }
  Datacat_fragment <| tag = 'nagios' |>
}

linux_host.pp

class role::linux_host {
  nagios::service { "ping":
    check_command => '$USER1$/check_ping -h $HOST$',
  }
}

service.pp

define nagios::service ($check_command) {
  @@datacat_fragment { "nagios::service ${name} from ${fqdn}":
    tag => 'nagios',
    target => '/etc/nagios/objects/services.cfg',
    data   => {
      $name => {
        check_command => $check_command,
      },
    },
  }
}

services.cfg.erb

<% @data.keys.sort.each do |service| %>
define service {
  name    <%= service %>
  <% @data[service].keys.sort.each do |field| %>
  <%= field %>  <%= @data[service][field] %>
}
<% end %>