Multi region kubernetes cluster (Onprem/Public Cloud)

A single Kubernetes cluster is manageable. You deploy things, they run, life is good. Things get complicated when you have clusters in multiple regions that need to talk to each other. This post covers why I needed multi-region, what I tried, what didn’t work, and how I got pod-to-pod connectivity between Mongolia and Germany using Netbird. Why Multi-Region The answer has two parts. First: the Mongolia cluster is on-premise, and this infrastructure is unstable. Network switches fail, the DC has