Aus einem Docker Container drucken

https://aapjeisbaas.nl/post/pdf-network-printing-without-drivers/
https://www.alecburton.co.uk/2017/printing-from-a-docker-container/

File-Upload in Flask

https://stackabuse.com/step-by-step-guide-to-file-upload-with-flask/
https://roytuts.com/python-flask-rest-api-file-upload/