Trouble installing with docker

I am trying to install using docker on Ubuntu 20.04. I have docker and docker-compose installed. I have done a docker pull on openrouteservice/openrouteservice. I am at the point where I am trying to issue the commands:

cd docker
docker-compose up

My problems are two fold. First, I cannot find any directory named docker to CD to. Second, if I try to just issue the docker-compose command I get an error telling me that it can’t find docker-compose.yml.

Hi @sboydlns
the docker folder and corresponding compose files are obtained when you clone our github repository to your system ( If you are using purely the docker hub image and not cloning from our repository, then you will need to write your own compose file.

Basically, the Docker hub image does nothing to do with files (as is normal with Docker) and is a pre-built image that a container can be built from