Environment variables from .env not in container

[tilllt]

I tried to switch my command line working samba container to a docker-compose based container and i made extensive use of the environment variables, using an .env file. After starting a clean image (removing old image first) and starting a terminal in the container, i can see that NONE of the .env variables have been set inside the container.

What is the correct way to use the environment variables, as described in the containers README? I think that using the .env file would be pretty standard in the docker world, but obviously it does not work for this samba container...

cheers