I want to use kubernetes on Hetzner cloud in an auto-scaling setup. Because I'm using cloud VMs, and also because my application architecture allows me to do so, I see no point in running multiple pods or multiple containers on the same node.
Therefore, is it possible to have k8s setup in such a way that it doesn't use any virtual/overlay networking? Since every node anyways gets a separate public and private IP, can the docker containers and k8s use the node's private IP directly for networking?
With no dedicated server, this is possible with Hetzner Cloud Controller Manager with network support. Instead of Flannel it is better to use Cillium for CCM network support, but the choice is yours. More details can be fond here.