I use the excellent linuxserver.io docker sabnzbd container for the sabnzbd component of the dockerized HTPC suite, my collection of tools and services to automate and consume my home media collection.
This is a companion discussion topic for the original entry at https://www.funkypenguin.co.nz/note/2017/01/23/docker-container-for-sabnzbd-with-sickbeard-mp4-automater-released.html