We need to add to the Dockerfile the SSH server to serve repositories.

Note: this is not the staging area SSH server.

Code by @aeppert

Code has been submitted a pull request on GitHub to merge rDPHAB82a577551716.

It should be transferred to DevCentral, cleaned up a little bit, as it does other unrelated stuff too.

Code live on DevCentral

https://pad.nasqueron.org/p/devcentral contains notes about how we've configured ssh in the first iteration.

History of current container shows the second iteration.

A case for docker-composer

Finally, this is perhaps an opportunity to stop to create a monolith image (we've already decided to create a separate image first for the MySQL server, then for aphlict) and instead to compose containers service by service.