Fully-functional Project Cars server as Docker image.
The image assumes a server.cfg in the /home/steam/server/config folder, so
to customize your config, simply mount a config folder when running the
container. Make sure, you do not set the bindIP config, because your external
IP is not the container's IP and thus cannot be seen from within the container.
The container exposes 4 ports, three for the server to work with Steam and the game (all UDP) and a (optional) TCP port for the server API.
To run the image, do
docker run -d -v $PWD/config:/home/steam/server/config \
-p 9000:9000 \
-p 8766:8766/udp \
-p 27015:27015/udp \
-p 27016:27016/udp \
--name=project-cars-ds \
lawitschka/project-cars-ds