Domino certificate manager works like a charm and is the best option for native Domino 12 certificate management. But in a K8s environment you might want to better have certificates deployed outside Domino in front of your Domino K8s service. Mostly you will use a so called Ingress controller, which offloads your TLS traffic. I took a look into https://cert-manager.io/docs/concepts/certificate last night. It turned out the issues I ran into only occurred because of a messed up k3s installation. After I re-created my server, I was ready to go in minutes.

Last week I looked into different type of Kuberntes (K8s) environments. And finally found out that the one I have been using is the best for my use-cases already! And finally went back to my favorite K3s implementation (https://k3s.io/ ) where everything worked out of the box.