use custom cert/key

[aditya0711]

docker run -p 8888:8888 -p 8001:8080 -p 8000:8443 -d apilayer/freegeoip -internal-server=:8888 -http=:8080 -https=:8443 -hsts=max-age=31536000 -cert=/home///filename_full.crt -key=/home///key.key

2018/05/14 05:07:41 freegeoip internal server starting on :8888
2018/05/14 05:07:41 database info: starting update
2018/05/14 05:07:41 freegeoip http server starting on :8080
2018/05/14 05:07:41 freegeoip https server starting on :8443
2018/05/14 05:07:41 listener: cert/key failed: open /home///filename_full.crt: no such file or directory

How do I pass the cert/key to the docker container, do I need to mount the /home/**/** to the container.

AND

How to configure nginx to run a proxy_pass to the container?

The repo is great, too bad its going to be deprecated soon.
Hoping for a quick response.

Thanks