I would like to have an interface to add repositories in a kickstart file where I could use a code snippet like:

<% @repos.each do |repo| >
repo --name=<= repo[:name] > --baseurl=<= repo[:baseurl] >
< end %>

The variable @repo would be an array of hashes, each describing a repository.
For example, to describe a yum repo, the following structure can be
returned:
[{ :baseurl => "https://dl.thesource.com/get/it/here",
:name => "awesome",
:description => "awesome product repo"",
:enabled => 1,
:gpgcheck => 1
}]