Very simple container using golang

This is a very basic example of how docker creates the containers using linux namespaces under the hood.

You need to run this go program on a Linux machine. I suggest working on a virtual machine.
rootfs is just a small linux root file system. I used Busybox rootfs

TL;DR

Clone git repo
run mkdir rootfs
run tar xvf rootfs.tar -C rootfs
Now you are ready to run the container: go run engine.go run /bin/sh
then you will have a ssh connection in to the container.