Last night I installed the new #Canal #CNI (#Calico + #Flannel) on the new #k3s #Kubernetes cluster in the same way I've always done it on the old #k8s cluster, neglecting the clear instructions to apply any changes from the original configuration to the new one. Those changes included little things like telling Flannel which interface to use, what IP range to allocate, and other trivialities. Wow did I blow that cluster to bits. Following the directions and deleting a few very confused pods fixed the issue.

Anyway, it's working now, and I have a better process in place to manage CNI upgrades.