none-driver: pod communications not working

[maxbrunet]

Opening the issue here for visibility.

I fixed most issues with Minikube v1.29.0 in #74, but I wrongly assume network issues would be caught by Minikube's own verification. Pods cannot communicate over the network, I identified it as a problem with iptables and opened a PR upstream: kubernetes/minikube#16143

If it cannot be fixed upstream, we could use jq like so (or JS directly):

jq '.cniVersion = "0.4.0" | .plugins |= . + [{ "type": "firewall" }]' /etc/cni/net.d/1-k8s.conflist | sudo tee /etc/cni/net.d/1-k8s.conflist.patched
sudo mv /etc/cni/net.d/1-k8s.conflist.patched /etc/cni/net.d/1-k8s.conflist
sudo systemctl restart cri-docker