Best way to move to ranger


I think ranger is a great tool and I am wondering how to convert my services to Ranger.

My current setup are subdomains which I type into my bind9 governed by an nginx reverse-proxy where I add my new upstreams by hand.

I use lets-encrypt for ssl certs.

The applications I deploy are mostly django apps wich expose a sock file via gunicorn and used by nginx as upstreams.

What would be the best aproach to convert my setting to rancher?
I am currently struggeling with setting up a front facing load balancer and I guess I am missing some core concepts.