Bug 13648

With YP LTS initiative, we may get into a time when the AutoBuilder itself can no longer support an older release (e.g. the automated testing infrastructure has changed, etc.).

It might also increase usage of the AutoBuilder if it was easier to setup/try.

This container would be a blend of the poky-container [1,2] and the buildbot-master [3,4] container. Although it might be possible to be even simpler and not need the poky-container bits...

Although it would be tempting to run Docker-in-Docker, this is ill advised [5] and instead the docker socket should be bind mounted:
'docker run -v /var/run/docker.sock:/var/run/docker.sock ...'

Similarly, the persistent build directories should be bind mounted docker volumes (local driver).

Specific to AB, we would need to point to yocto-autobuilder2 and yocto-autobuilder-helper git repos or local copies (with local configurations). 

[1] https://github.com/crops/poky-container
[2] https://hub.docker.com/r/crops/poky
[3] https://github.com/buildbot/buildbot/blob/master/master/Dockerfile
[4] https://hub.docker.com/r/buildbot/buildbot-master
[5] https://jpetazzo.github.io/2015/09/03/do-not-use-docker-in-docker-for-ci/