volume mapping a directory to keep nginx.conf on the host for editing

[IoTPlay]

Hi, I am trying to edit the nginx.conf file, this I normally do by mapping a directory where the .conf resides on the docker container, to a folder on the docker host.

I see you have in the Dockerfile a working dir /app/ - but I do not see this in the container? I thouht of using that.

How could I possibly use ENTRYPOINT ["/app/docker-entrypoint.sh"] to solve this?