Based on Ubuntu 14.04
This is a Dockerfile setup for sabnzbd - http://sabnzbd.org/ With par2 multithreaded - http://chuchusoft.com/par2_tbb/
To run:
docker run -d --name="sabnzbd" -v /path/to/nzbdrone/data:/config -v /path/to/downloads:/downloads -p hostport:8080 -p hostport:9090 sensei73/sabnzbd
Thanks to jpon, nas, needo and limetech.