Is it possible to use the Puppet inventory for puppet modules and other systems?

Solution 1:

Yes, it is.

Here is the link to the official documentation: https://puppet.com/docs/puppet/latest/lang_exported.html

Solution 2:

In addition to Cakemox's answer, see this module as an example of that. It exports the ssh server key of each server to all ssh clients. Likewise, you could be exporting a host entry, or some part of a config file, etc.

I don't have it public (because its still very much a work in progress), but I have my JBoss servers exporting their IPs to the pg_hba of the Postgres servers whose databases they use, as well as having the postgres database declarations exporting lines that are used to compose the datasource xml file for the JBoss apps that use them.