Using check_openmanage with check_mk

Here's my guide to installing check_openmanage in an OMD site, in case it helps anyone:

This was done on the following system:

• CentOS 5.5 x86_64 KVM virtual machine
  
• OMD 0.47.20110302
  
• check_openmanage 3.6.5
  
• Dell servers are checked via check_openmanage using SNMP rather than MRPE (or NRPE)
  

Unless otherwise specified all paths are relative to the site owners home (ex: /opt/omd/sites/mysite)

1. Make sure your dell servers had the following SNMP packages installed prior to installing OMSA (if not, it's easy to 'yum remove srvadmin-\*' 'yum install srvadmin-all': net-snmp, net-snmp-libs, net-snmp-utils
   
   • Start the OMSA services 'srvadmin-services.sh start' and then check 'srvadmin-services.sh status' to verify that the snmpd component is running
     
   • Ensure that snmpd is running and configured
     
   • Configure the firewall to allow access from your OMD server to udp port 161
     
2. change users on your OMD server to the site user: $ su - mysite
   
3. Download the latest check_openmanage from http://folk.uio.no/trondham/software/check_openmanage.html to ~/tmp and extract
   
4. copy the check_openmanage script to local/lib/nagios/plugins (this defaults to $USER2$ in your commands)
   

   
   $ cp tmp/check_openmanage-3.6.5/check_openmanage local/lib/nagios/plugins/
   $ chmod +x local/lib/nagios/plugins/check_openmanage
   

5. copy the PNP4Nagios template
   

   
   $ cp tmp/check_openmanage-3.6.5/check_openmanage.php etc/pnp4nagios/templates/
   

6. If you are running CentOS 5.5/RHEL 5.5 or earlier (it's unclear whether or not this will be an issue in EL5.6), and you want performance graphs, you'll need to edit the check_openmanage.php template (see this bug: https://bugs.op5.com/bug_view_advanced_page.php?bug_id=4008), comment out the original condition and replace:
   

   
   $ vi etc/pnp4nagios/templates/check_openmanage.php
   
   ##    if(preg_match('/^enclosure_(?.+?)_temp_\d+$/', $NAME[$i], $matches)
   ##       || preg_match('/^e(?.+?)t\d+$/', $NAME[$i], $matches)){
   # This is the fixed line for CentOS 5.5 and prior
        if(preg_match('/^enclosure_(.+?)_temp_\d+$/', $NAME[$i], $matches)){
   

7. Test check_openmanage to see that it can successfully query a node (ack, I need to update my driver)
   

   
   local/lib/nagios/plugins/check_openmanage -H dell-r710-01 -p -C MySecretCommunity
   
   Controller 1 [SAS 5/E Adapter]: Driver '3.04.13rh' is out of date|fan_0_system_board_fan_1_rpm=3600;0;0 fan_1_system_board_fan_3_rpm=3600;0;0 fan_2_system_board_fan_4_rpm=3600;0;0 fan_3_system_board_fan_5_rpm=3600;0;0 fan_4_system_board_fan_2_rpm=3600;0;0 pwr_mon_0_ps_1_current=0.6;0;0 pwr_mon_1_ps_2_current=0.4;0;0 pwr_mon_2_system_board_system_level=182;0;0 temp_0_system_board_ambient=21;42;47
   
   

8. Edit the main.mk file to add tags to the OMSA hosts and the check command (the perfdata_format and monitoring_host I got from a previous emailer to the list, not sure if they are needed)
   

   
   all_hosts = [ 'dell-r710-01|linsrv|kvm|omsa|nonpub', 'dell-2950-01|linsrv|omsa|nonpub', 'hp-srv-01|winsrv|smb', ]
   
   # Are you using PNP4Nagios and MRPE checks? This will make PNP
   # choose the correct template for standard Nagios checks:
   perfdata_format = "pnp"
   #set the monitoring host
   monitoring_host = "nagios"
   
   # SNMP Community
   snmp_default_community = "someCommunityRO"
   
   snmp_communities = [
     ( "MySecretCommunity", ["nonpub"], ALL_HOSTS ),
   ]
   
   # other main.mk stuff
   
   extra_nagios_conf += r"""
   
   # ARG1: community string
   define command {
       command_name    check_openmanage
       command_line    $USER2$/check_openmanage -H $HOSTADDRESS$ -p -C $ARG1$
   }
   
   """
   
   legacy_checks = [
     # On all hosts with the tag 'omsa' check Dell OpenManage for status 
     # service description "Dell OMSA", process performance data
     ( ( "check_openmanage!MySecretCommunity", "Dell OMSA", True), [ "omsa" ], ALL_HOSTS ),
   ]
   

9. That should be it, simply reload and your new check should start working for all hosts tagged with 'omsa'
   

   
   $ check_mk -O
   
   

To make it cleaner, the legacy_check should be able to determine the community string based on the settings in snmp_default_community and snmp_communities

I've only been testing check_mk for a few days now and am not sure how to do that. (suggestions?)

Hope this helps, and comments are welcome.