Trigger build when upstream system image changes?

[jnohlgard]

There's a setting in the Docker hub called Repository Links:

Link your Automated Build to another Docker Hub repository, and when that repository is updated, it will automatically trigger a rebuild of this Automated Build.

Do we want a new image built every time the ubuntu repo is updated to keep the image always up to date in the Docker hub?

[kaspar030]

As long as we specify the exact distribution (xenial ATM). ;)

[fjmolinas]

I think this should be implemented, resent changes in the Dockerfile (2 month old) are not in the Hub (4 month old).

[jcarrano]

If the image gets rebuilt once in a while, we should test it before marking it as the current image. In any case, it would be better than what we are doing now (running dist-upgrade.)