How to use host variables as field values in service templates?

Icinga Director
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1

Hello everybody, we are currently trying to port our Icinga2 configuration from using configs to using the Director.

At the moment I am trying to configure a Service Apply rule which populates a custom field value with a variable from a host. Using config files, this would be as easy as saying

vars.custom_service_field = host.vars.custom_host_field

But how can I achieve this using the Director, since you can’t define custom field values to be “variables”, only strings. Every input I tried so far, be it $host.vars.custom_host_field$ or just host.vars.custom_host_field got wrapped with "" and was used as a literal string.

Best regards,
Daniel

4 Likes
2

This question has also been on my mind for some time.

In my scenario I would like to have the possibility to set the service_interval per check. Until now I have to create an extra service template and import it. This is very cumbersome and difficult to manage.

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3

Coming back to this after quite some time, but I managed to solve my use case. It is indeed possible to use host variables as custom service variables:

object Service "TestService" {
    [...]
    vars.custom_service_var = "$host.vars.custom_host_field$"
    [...]
}

or via Director, entering “$host.vars.custom_host_field$” as value for the created field.

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