Freeradius in Docker

Hi! I would like some data persistence in my Freeradius Docker container so I would like to add a volume of some kind (eg. bind mount) to persist the data. Which folders in the container can I safely choose to do this? I have experienced difficulties with some folders as others also appear to have experience the same thing (https://stackoverflow.com/questions/64105419/how-to-run-freeradius-using-doc...). How can I have data persistence with configuration files and certificates? Admittedly I am starting to get a bit tired but I don't think I can find the answer here: https://hub.docker.com/r/freeradius/freeradius-server/ Best regards, Kat