It's not that crazy a thing to do. Wikimedia cluster has
https://wikitech-static.wikimedia.org/, a read-only copy of
https://wikitech.wikimedia.org/, acting as a backup copy of documentation
in case of a catastrophic outage.
According to
https://wikitech.wikimedia.org/wiki/wikitech-static, it's set
up using a few cronjobs that export and import the content of the wiki as
XML. mw-files.sh and mw-xml.sh (mentioned by that page) can be found at
https://github.com/wikimedia/operations-puppet/tree/production/modules/open…,
but I have no idea where to acquire a copy of import-wikitech.sh. :)
--
Matma Rex