The easiest way to run is with the port mapped directly on the host:
sudo docker run -p 127.0.0.1:8080:8080 tobert/f7u12-2048
If you want to access from other hosts on the local network, try binding to 0.0.0.0.
sudo docker run -p 0.0.0.0:8080:8080 tobert/f7u12-2048
Docker Pull Command