This page describes the installation and use of the NagiosGen plugin.

Update /etc/bcfg2.conf, adding NagiosGen to plugins

plugins = SSHbase,Cfg,Pkgmgr,Rules,TCheetah,TWbase,NagiosGen

Create NagiosGen directory

$ mkdir /var/lib/bcfg2/NagiosGen

Create default host, and group specs in:

• /var/lib/bcfg2/NagiosGen/default-host.cfg

  define host{
          name                            default
          check_command                   check-host-alive
          check_interval                  5
          check_period                    24x7
          contact_groups                  admins
          event_handler_enabled           1
          failure_prediction_enabled      1
          flap_detection_enabled          1
  	initial_state			o
          max_check_attempts              10
          notification_interval           0
          notification_options            d,u,r
          notification_period             workhours
          notifications_enabled           1
          process_perf_data               0
          register                        0
          retain_nonstatus_information    1
          retain_status_information       1
          retry_interval                  1
          }
  

• /var/lib/bcfg2/NagiosGen/default-group.cfg

  define service{
          name                            default-service
          active_checks_enabled           1
          passive_checks_enabled          1
          obsess_over_service             0
          check_freshness                 0
          notifications_enabled           1
          event_handler_enabled           1
          flap_detection_enabled          1
          process_perf_data               0
          retain_status_information       1
          retain_nonstatus_information    1
          is_volatile                     0
  
  	check_period                    24x7
          max_check_attempts              4
          check_interval           	5
          retry_interval			1
          contact_groups                  admins
          notification_options            w,u,c,r
          notification_interval           0
          notification_period             workhours
          }
  

Create group configuration files (Named identical to Bcfg2 groups) and add services, and commands specific to the hostgroup (Bcfg2 group) in

• /var/lib/bcfg2/NagiosGen/base-group.cfg

  define hostgroup{
  	hostgroup_name	base
  	alias		base
  	notes		Notes
  }
  
  define service{
          service_description             NTP
          check_command                   check_ntp!
          use                             default-service
          hostgroup_name                  base
          }
  
  define command{
          command_name    check_ssh
          command_line    $USER1$/check_ssh $ARG1$ $HOSTADDRESS$
          }
  
  define service{
          service_description             SSH
          check_command                   check_ssh!
          use                             default-service
          hostgroup_name                  base
          }
  

• /var/lib/bcfg2/NagiosGen/web-server.cfg

  define hostgroup{
  	hostgroup_name	web-server
  	alias		Port 80 Web Servers
  	notes		UC/ANL Teragrid Web Servers Running on Port 80
  }
  
  define command{
          command_name    check_http_80
          command_line    $USER1$/check_http $HOSTADDRESS$
          }
  
  define service{
          service_description             HTTP:80
          check_command                   check_http_80!
          use                             default-service
          hostgroup_name                  web-server
          }
  

Create NagiosGen bcfg2 bundle /var/lib/bcfg2/Bundler/nagios.xml

<Bundle name='nagios-client' version='2.0'>
  <Group name='rh'>
    <ConfigFile name='/etc/nagiosgen.status'/>

    <Group name='nagios-server'>
      <ConfigFile name='/etc/nagios/nagiosgen.cfg'/>
      <Package name='libtool-libs'/>
      <Package name='nagios'/>
      <Package name='nagios-www'/>
      <Service name='nagios'/>
    </Group>
  </Group>

  <Group name='debian-lenny'>
    <Group name='nagios-server'>
      <ConfigFile name='/etc/nagios3/nagiosgen.cfg'
                  altsrc='/etc/nagios/nagiosgen.cfg'/>
      <Package name='nagios3'/>
      <Package name='nagios3-common'/>
      <Package name='nagios3-doc'/>
      <Package name='nagios-images'/>
      <Service name='nagios3'/>
    </Group>
  </Group>
</Bundle>

Assign clients to nagios groups in /var/lib/bcfg2/Metadata/groups.xml

<Group name='nagios'>
  <Bundle name='nagios'/>
</Group>

<Group name='nagios-server'>
  <Bundle name='nagios'/>
</Group>

Update nagios configuration file to use nagiosgen.cfg

cfg_file=/etc/nagios/nagiosgen.cfg

Note that some of these files are built on demand, each time a client in group "nagios-server" checks in with the bcfg2 server. Local nagios instances can be configured to use the NagiosGen directory in the bcfg2 repository directly.