Get the graph (performance data) for a custom Nagios plugin

Checkmk Exchange
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1

Hello,

Is there a way to get the graph for a custom Nagios plugin stored in /local/lib/nagios/plugins?

If I put the same script (with little adaptation) in /usr/lib/check_mk_agent/local/ to have a local check, it works well and the graph is available.

I followed this doc: Local checks

The command: echo “0 “My service” myvalue=73;80;90 My output” doesn’t work with a custom Nagios plugin, the graph isn’t available, event if I check the box “performance data” into the rule “Integrate Nagios Plugin”.

Do you have an idea?

Thank you in advance

2

If you want to execute a Nagios plugin from the checkmk agent on the host have a look at the MRPE mechanism (search on docs.checkmk.com). It will also pass the metrics from the plugin.

3

Thank for this advice but the goal is to not use the agent because this custom Nagios plugin checks a specific status of internet service, not of a host.

If I use the agent to execute this custom script (MRPE or local check), custom check will be associated with this agent-based host.

Maybe, is there a way to associate the HostA service to the HostB?

Thank you,
Sean

4

Then you need to have the Nagios plugin in /usr/lib/nagios/plugins on the monitoring server or even better in $OMD_ROOT/local/lib/nagios/plugins of the checkmk site.

In the ruleset “Integrate Nagios Plugin” create a rule that has the command line of the Nagios plugin (including the path if installed in /usr/lib/nagios/plugins). That’s all.

5

If your question is how to output the metric data from the Nagios plugin then please have a look at the Nagios plugin documentation:

https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/pluginapi.html

1 Like
6

Yes, that’s it.
Thank you for this link!

Best regards,
Sean