Hi folks, today, we will learn how to resolve DNS issue in MicroK8s.
If like me you happened to discover that you don't have internet in your pod but can ping 220.127.116.11, then you most likely have a DNS issue.
Also, there is a good chance that the issue might be this one: https://kubernetes.io/docs/tasks/administer-cluster/dns-debugging-resolution/#known-issues
To solve it, you need to edit the file /var/snap/microk8s/current/args/kubelet in all of your MicroK8s nodes and add at the end of the file:
Then restart kubelet :
systemctl restart snap.microk8s.daemon-kubelet
Finally, restart CoreDNS:
microk8s kubectl rollout restart -n kube-system deployment/coredns
You should also restart any pod that was affected by the issue with:
microk8s kubectl rollout restart deployment mypod
That's all folks !