Add --allow-privileged=true
to:
# kubelet config
sudo vim /var/snap/microk8s/current/args/kubelet
#kube-apiserver config
sudo vim /var/snap/microk8s/current/args/kube-apiserver
Restart services:
sudo systemctl restart snap.microk8s.daemon-kubelet.service
sudo systemctl restart snap.microk8s.daemon-apiserver.service
https://github.com/ubuntu/microk8s/blob/master/microk8s-resources/actions/enable.istio.sh