https://github.com/uncyclomedia/mediawiki-config/blob/master/LocalSettings.php
Also, Cindy Cicalese steps through her expert setup at https://collaborate.mitre.org/gestalt/index.php/The_Why_And_How_of_Wiki_Farms Code for automating this with [[Ansible]] is a complete walkat https://github.com/wikimedia/mediawiki-tools-ansible-through (of one approach) to creating your farm.wikifarm
[[Category:Wiki]]