Check the configuration settings in prusalink.ini, and verify their
correctness on your system.
The network port of the service inside the container is mapped by the docker-compose.yml file to port 8008; please adjust as appropriate for the container host system.
The serial port for your printer needs to be assigned to the container, verify that the value in docker-compose.yml is correct. If you have python3 and pyserial installed, you can check this by running:
$ python3 -m serial.tools.miniterm
I've been unsuccessful so far enabling the camera support with a standard USB webcam.
It should be as simple as running
docker-compose up -d
Then opening up http://:8008/ in a browser and going through
the configuration steps presented. The printer configuration settings will be
stored in a docker volume called prusalink (actually prusalink_prusalink as
docker-compose generates it with the container name and the volume name).