We'll need a way to publish to integration.wikimedia.org in addition to the current doc.wikimedia.org publisher. I don't think we'd need a new publishing tunnel, we can amend the existing one with slightly larger path abstraction to allow hitting either doc.wikimedia.org/:project/:version or integration.wikimedia.org/cover/:project.

This is blocking:

• Publication of QUnit coverage (which we can already generate with Karma in labs, but has no publishing path).
• Migration of mediawiki-core phpunit code coverage from production gallium to labs slave.