Nested (on demand)macros

[Marc Powell]

On Jan 11, 2010, at 6:03 AM, Simon Kainz wrote:

> Hi list!
> 
> I#M using Nagios 2.9  and have the following question:
> 
> I'm trying to save some typing and to prettyfy my config files, so i
> came up with the following:
> 
> 
> check_command
> check-host-adaptive!$SERVICESTATEID:$HOSTNAME$:conn$!$SERVICEATTEMPT:$HOSTNAME$:conn$
> 

I don't know if this double substitution will work*, but if it has a chance to, you need to use the macro in the command{} definition command_line, not the host{} definition.

See http://nagios.sourceforge.net/docs/3_0/clusters.html for an example.

* I don't believe this is going to work because it's not listed as one of the macros that's expected to contain other macros. From the Macros documenation --

Macro Substitution - How Macros Work

Before Nagios executes a command, it will replace any macros it finds in the command definition with their corresponding values. This macro substitution occurs for all types of commands that Nagios executes - host and service checks, notifications, event handlers, etc.

Certain macros may themselves contain other macros. These include the $HOSTNOTES$, $HOSTNOTESURL$, $HOSTACTIONURL$, $SERVICENOTES$, $SERVICENOTESURL$, and $SERVICEACTIONURL$ macros.


--
Marc
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