Is it possible to have a host in Nagios use multiple templates?
I'm trying to monitor some MSSQL servers. Some of these are standalone single servers with a single instance, and others are using MSCS to form 2-node HA clusters.
The things I want to monitor on a particular server are different to the things I want to monitor for a particular SQL instance. e.g. I want to use a template windows-server
to tell me generic things about windows for a given server. Similarly, I'd want to use a specific SQL template called sql-instance
to monitor SQL-specific things, like connected users, batch requests etc.
For my 2 node clusters, this is quite easy - I have three host definitions: a windows-server
for each specific node and a sql-instance
pointing at the cluster dns name.
For single instances, I'd like to be able to have a single host, which uses both the windows-server
and sql-instance
templates together, because they both should point at the same hostname. However, any attempts to do:
define host {
use windows-server, sql-instance
}
or
define host {
use windows-server
use sql-instance
}
results in nagios only picking up one of the templates and ignoring the other.
So how best can I do multiple template inheritance in Nagios?