Hi,

at PuppetConf (puppetconf.org) multiple talks pointed out how the PuppetForge (http://forge.puppetlabs.com/), a repository of puppet modules meanwhile has over 500 modules.

so i searched for mediawiki and there are at least 3 mediawiki modules:

http://forge.puppetlabs.com/modules?q=mediawiki&commit=Go

Module carlasouza/mediawiki "Puppet Module to create many wikis (on the same machine) using only one mediawiki installation."

Module martasd/mediawiki "...deploys and manages multiple MediaWiki instances using a single MediaWiki installation. .."

Module rcoleman/mediawiki "..fork of the martasd/mediawiki module. All good changes are being pushed upstream. "

Also, martasd/mediawiki has been "module of the week"

http://puppetlabs.com/blog/module-of-the-week-martasd-mediawiki/

Thought these might be helpful for Labs Mediawiki deployment.