A CUPS server with a variety of included drivers, USB support, support for the Home Assistant installation's TLS certificate, and mDNS broadcasting enabled.
Logins are disabled from the local network, but the web UI from within Home Assistant is automatically authenticated
cupsd.conf and Dockerfile modified from https://github.com/lemariva/wifi-cups-server
Some of the Avahi and D-Bus code is modified from https://github.com/marthoc/docker-homeseer