Show HN: Bocker – Docker implemented in 100 lines of bash

Just playing with this in a VM with an attached btrfs volume, a complete revelation. 96 lines! And it's actually pretty functional. This takes keeping it simple to a whole new level. The Wheezy image I use with LXC worked well enough, the minimal alpine image not so well, apk complaining about its database. User name spaces support would be nice, then we can play with unprivileged containers. And Overlayfs would be a nifty alternative to btrfs, it's in kernel…

I did something (slightly) similar via proot, called Bag [1], which I must have not described as a docker alternative: It has nothing to do with cgroups, and the cli deviates from that of docker's. The backstory: To bypass internet censorship and deep packet inspection, I had written a proxy chain solution masquerading itself as plain html traffic. I needed it constantly running everywhere I went, but I didn't want to port it to a native android app. I wanted…

Nice! A while ago (also back in 2015) I experimented with a minimal replacement for Dockerfiles in ~50 lines of shell: https://gist.github.com/wjordan/f9f640727c06d46172e6 Would be interesting to hook the two scripts together for an extended bash-based container-image creation workflow.