dns lets-encrypt kubernetes networking Using Let's Encrypt for Internal IPs with Bind How do you make Let's Encrypt work with internal IPs if your DNS provider doesn't have support for DNS01? Run your own DNS. Good thing is you only have to do it for a sub domain!
kubernetes dns rke coredns Add Wildcard DNS Lookups in RKE2 Kubernetes with CoreDNS Use CoreDNS to create local host entries for your entire RKE2 Kubernetes cluster.
kubernetes dns auth Advanced Nginx Ingress Configurations in Kubernetes Ingresses are your friends when configured right. They can often take care of tasks that could be potentially difficult to configure in underlying services.
kubernetes k3s dns Add Local DNS Entries to K3S Adding local DNS entries to your K3S cluster in a persistant way.