Nagios Support Forum

HI Guys,

I am trying to build a component for our XI environment. We use custom/ free variables with Nagios to identify what type of device it is. Is it possible to grab these fields via the backend API. As far as I can see from the xml dump I cant see those free variables. Not very keen on doing direct look ups on the DB .

host id="763">
<instance_id>1</instance_id>
<host_name>www.khipu-networks.com</host_name>
<is_active>1</is_active>
<config_type>1</config_type>
<alias>www.khipu-networks.com</alias>
<display_name>www.khipu-networks.com</display_name>
<address>www.khipu-networks.com</address>
<check_interval>5</check_interval>
<retry_interval>1</retry_interval>
<max_check_attempts>5</max_check_attempts>
<first_notification_delay>0</first_notification_delay>
<notification_interval>60</notification_interval>
<passive_checks_enabled>1</passive_checks_enabled>
<active_checks_enabled>1</active_checks_enabled>
<notifications_enabled>1</notifications_enabled>
<notes/>
<notes_url/>
<action_url/>
<icon_image>www_server.png</icon_image>
<icon_image_alt/>
<statusmap_image>www_server.png</statusmap_image>
</host>

These are somewhat hidded but you can call the following cmd=

getcustomhostvariablestatus
getcustomservicevariablestatus
getcustomcontactvariablestatus

That will output the free variables

Brilliant ...Thanks....Just what the Doctor ordered...

Ooops spoke to soon I guess, I need the IP address, their does'nt seem to be an address field within that xml data. I definitely need the address and the free variables In our case the hostnames are random and doesnt actually resolve

Do the hosts have their IPs entered into the CCM, or are you just checking them based on hostname? The XML will return whatever is in the CCM.

Yes they have IP's in CCM

If You look at the difference in output for both getcalls you can see the problem

gethosts

<host id="2127">
<instance_id>1</instance_id>
<host_name>wmin-aruba.wmin.ac.uk</host_name>
<is_active>1</is_active>
<config_type>1</config_type>
<alias>wmin-aruba.wmin.ac.uk</alias>
<display_name>wmin-aruba.wmin.ac.uk</display_name>
<address>161.74.50.10</address> THIS is the field I am missing
<check_interval>5</check_interval>
<retry_interval>1</retry_interval>
<max_check_attempts>10</max_check_attempts>
<first_notification_delay>0</first_notification_delay>
<notification_interval>60</notification_interval>
<passive_checks_enabled>1</passive_checks_enabled>
<active_checks_enabled>1</active_checks_enabled>
<notifications_enabled>1</notifications_enabled>

For getcustomhostvariablestatus

<customhostvarstatus>
<instance_id>1</instance_id>
<contact_id>2127</contact_id>
<host_name>wmin-aruba.wmin.ac.uk</host_name>
<display_name>wmin-aruba.wmin.ac.uk</display_name>
<host_alias>wmin-aruba.wmin.ac.uk</host_alias>
<customvars>
<customvar>

This would need to be a second call to gethosts to get that information

Yup...just wondering about the performance

Performance should not be too bad as long as you are not making that query too often. How many checks will use the query every 5 minutes?

These calls will only be used by my component to populate a list of devices. I have implemented with two calls and the performance is ok...not too bad.