https://foundryvtt.com/releases/0.7.5
0.7.5+c changes:
- Removes the TURN ports that are exposed in the Docker image. This was done to reduce the chance that users will inadvertently publish all the exposed ports and trigger a bug in Docker (moby/moby#11185). Users of Portainer can make this mistake easily. Users of the internal TURN server, can still publish the UDP port ranges even though they are not exposed. This configuration will be covered in the future cookbooks and FAQ documentation.