docker-cupsd

Table of Contents

• Run the server
• Add printers to server
• Add the printer to your Mac
• Use with Home Assistant

cupsd in a docker container.

Based on debian:bullseye-slim. Includes cupsd along with every printer driver I could think of.

Admin user & passwords default to print / print

Run the server

Start cupsd with:

sudo docker run -d --restart unless-stopped \
  -p 631:631 \
  --privileged \
  -v /var/run/dbus:/var/run/dbus \
  -v /dev/bus/usb:/dev/bus/usb \
  -v $(pwd)/printers.conf:/etc/cups/printers.conf \
  unixorn/cupsd

or use docker-compose up with the following docker-compose.yaml:

version: '3.9'
services:
  cupsd:
    image: unixorn/cupsd
    volumes:
      - './printers.conf:/etc/cups/printers.conf'
      - '/dev/bus/usb:/dev/bus/usb'
      - '/var/run/dbus:/var/run/dbus'
      - /etc/hostname:/etc/hostname:ro
      - /etc/localtime:/etc/localtime:ro
      - /etc/machine-id:/etc/machine-id:ro
      - /etc/timezone:/etc/timezone:ro
    privileged: true
    ports:
      - '631:631'
    restart: unless-stopped

Mounting printers.conf into the container keeps you from losing your printer configuration when you upgrade the container later.

Add printers to server

1. Connect to http://cupsd-hostname:631
2. Adminstration -> Printers -> Add Printer

Add the printer to your Mac

1. System Preferences -> Printers
2. Click on the +
3. Click the center sphere icon
4. Put the IP (or better, DNS name) of your server in the Address field
5. Select Internet Printing Protocol in the Protocol dropdown
6. Put printers/YOURPRINTERNAME in the queue field.

Use with Home Assistant

I blogged how I use this with Home Assistant to automagically turn on my HP 4050N printer when there are print jobs and turn it back off when the jobs are complete here, but it'll work with any printer.