Docker

You can read about Docker here

For production
Official

The development of an official Docker installation of MediaWiki is tracked at Phabricator.

The image can be found on github https://github.com/wikimedia/mediawiki-docker

The image is currently going through a process to be added as an official image on docker hub https://github.com/docker-library/official-images/issues/3271

Community

This is a list of community maintained docker installations of mediawiki (use at your own risk):
 * https://github.com/rlewkowicz/docker-mediawiki-stack/tree/REL1_28
 * https://github.com/pastakhov/compose-mediawiki-ubuntu (MediaWiki + Memcached + Parsoid + RESTBase + Elasticsearch + Vargant)

For development
Take a look at https://github.com/addshore/mediawiki-docker-dev which has a complete README to get you setup.