Kubernetes is supposed to installed nodes close to each other, typically in the same server room, or datacenter, otherwise the latency would kill the etcd clust

Kubernetes is supposed to installed nodes close to each other, typically in the same server room, or datacenter, otherwise the latency would kill the etcd cluster. Ansible is perfectly fine and simple for your use case, why would you bother even thinking about overcomplicating it? Simplicity is king!