Cluster has problem with communication between nodes

[dsieradzki]

When I try to get logs from pod I got error: Get "https://microk8s-master-3:10250/containerLogs/<pod_name>?follow=true&tailLines=100&timestamps=true": dial tcp: lookup microk8s-master-3: Temporary failure in name resolution

K4Prox add nodes dns to /etc/hosts but it's reverted to default by cloud-init. Hosts should be added to /etc/cloud/templates/hosts.debian.tmpl not /etc/hosts