“Dokku is a mini-Heroku powered by Docker written in less than 100 lines of Bash. Once it’s set up on a host, you can push Heroku-compatible applications to it via Git. They’ll build using Heroku buildpacks and then run in isolated containers. The end result is your own, single-host version of Heroku.
Dokku is under 100 lines because it’s built out of several components that do most of the heavy lifting: Docker, Buildstep, and gitreceive…”