got up to workers
seems that docker is not starting and the worker nodes cannot join the cluster because they have no properly functioning container runtime
can't see any other problems.


following this : https://www.digitalocean.com/community/tutorials/how-to-create-a-kubernetes-cluster-using-kubeadm-on-ubuntu-18-04
interesting notes : https://elatov.github.io/2020/04/adding-a-node-to-a-kubernetes-cluster-with-kubeadm/
