How to point an external domain name to hetzner load balancer

[schlichtanders]

Hi there,
I have a domain bought on namecheap and now would like to point a sub domain of it to my hetzner kubernertes, which is setup with a hetzner load balancer.

I guess I somehow need to add a couple of DNS records which then finally make the DNS from namecheap look at the load balancer, which looks to Traefik (using the default Traefik ingress), which uses cert-manager for setting up the letsencrypt certificate, and everything backwards, so that the letsencrypt certificate can be validated and later https calls can be done.

I haven't found good tutorials or similar instructions anywhere, so I hope someone can help me finding good best practices.

EDIT: the only tutorial I found for Hetzner Load Balancer is this one, however it of course does not mention kubernetes