This repository stores the LocalSettings structure that I use for my MediaWiki farm.
The structure of this is pretty straightforward. The overall configuration for MediaWiki is kept in LocalSettings.php which should be a symlink from the main MediaWiki directory. This file will then pull things from:
wiki
where the core configuration for various wikis is keptsecrets
which are simple PHP files to store secret passwords that are not committed to source controlmodules
which are grouping of settings to enable certain capabilities
Running a MediaWiki farm isn't very well documented. What documentation exists has some major gaps. I think the structure I've put together to doing this is pretty simple and easy to manage and others running farms might benefit from it.