If you’d like to follow along with someone who “has no idea what they’re doing” to learn how to take a base Docker image made with a single line Dockerfile FROM debian:latest and convert it to something launch-able, then read on…

…messing about with things like this is the only way to gain extra knowledge of any system internals. We are going to speak Docker and Linux here. What if we want to take a base Docker image, I mean really base, just an image made with a single line Dockerfile like FROM debian:latest, and convert it to something launchable on a real or virtual machine? In other words, can we create a disk image having exactly the same Linux userland a running container has and then boot from it?