SSL setup for Metasfresh (docker version)

Hello,

I am running Metasfresh docker version Ubuntu 20.04 and would like to run it over SSL. I found the following guide for SSL setup: https://docs.metasfresh.org/installation_collection/EN/How_do_I_setup_metasfresh_docker_with_ssl.html

Step 4 says “Generate or acquire your SSL certificates.”

Unfortunately I am not very versed with SSL certificates. Can someone help me with the steps / commands that are required to generate the SSL certificates on my ubuntu server?

thank you