[jfkimmes]

I toyed with a similar setup recently and I had the problem that I, too, would have rules depend on a "docker build"-step (like `docker-image` in your example). Usually `make` would stop building the dependency for non-PHONY targets if it finds the correct file but in this case it obviously cannot find anything.

I tried `touch`ing hidden files for each step and then add those as a dependency but that is not very elegant. Do you have this problem at all?