Ok, so after a lot of fiddling (mostly around making documentation and audio processing work for generic installation) I've gotten chuck => darkice => icecast running in docker on a raspberry pi using ALSA snd-aloop loopback module. Some links: * https://hub.docker.com/r/concretemixer/cm-rpi-internet/ # docker image * https://github.com/concrete-mixer/cm-rpi-docker-internet # git repo for docker image with instructions on installation * https://github.com/concrete-mixer/concrete-mixer # about what you are hearing http://concrete-mixer.venturus.io/concrete-mixer.mp3 # a live implementation (hopefully running; the pi sits dangerously close to my feet). As originally mentioned my original intention was to run this on AWS, but the pi seems to accommodate chuck + darkice + icecast reasonably well (4 processors helps!). Since the setup doesn't rely on sound hardware, there's no reason an AWS machine couldn't run a similar rig. Hopefully this is useful to someone who may want to go down this path in future :). Stuart