This setup will make weave behave correctly (the pod-network-cidr). The HOST_IP
should be the IP the nodes can access.
kubeadm init --apiserver-advertise-address=HOST_IP --pod-network-cidr=10.4.0.0/16 --apiserver-cert-extra-sans=EXTERA_IPS
mkdir -p /home/arsham/.kube
cp -i /etc/kubernetes/admin.conf /home/arsham/.kube/config
chown arsham:arsham /home/arsham/.kube/config