Create valid SSL in Https connection of RapidMiner AI Hub

cuongdnv

I was able to generate SSL through the Customer Internal CA documentation.
However this is just a Self-Sign certificate .
I want to create a standard SSL, which is issued by an external CA, what should I do?
Normally I would use letsencrypt but in this case I don't know how to create

https://letsencrypt.org/

https://docs.rapidminer.com/latest/deployment/docker-compose/internal-ca.html