Beware false laziness. Slamming out a 500 character command line to build something is ok for a little while, but if it ever falls out of history, you're doomed. Write the Makefile and expend less energy overall.
Why not just copy/paste that into a .sh, put #!/bin/bash at the top, check it into source control, and call it good enough for now? I guess they call that a "Dockerfile" these days :)
The true lazy person starts with a cookie-cutter template whenever they start a new project. It helps when the path of least resistance is also the best practice.
