Data at REST encryption with Percona Server for MySQL 8.0.16-7

Hello together, I am currently trying to understand how I can enable encryption for my Percona Server database which I like to run in a container under kubernetes. Unfortunately, I am new to the topic and I do not understand the documentation for this feature. Could someone provide me with a simple tutorial on what to set in my.cnf and how I have to provide keys and use keys? Thanks a lot for your help!

Best regards,

Hello together,
can nobody provide some help on the topic?