Wikimedia Labs provides a cloud computing infrastructure powered by OpenStack for projects related to the Wikimedia movement. The environment also includes a live replica of databases of all public Wikimedia Foundation wikis. Much of the configuration for Labs projects is managed using Horizon and OpenStackManager-provided special pages on this wiki.
Wikimedia Labs is meant to make it easier for developers and system administrators to try out improvements to Wikimedia infrastructure, including MediaWiki, and to do analytics and bot work.
For more information, start at Help:Contents.