azN2

# kubectl logs -f -l k8s-app=kube-dns -n kube-system
# kubectl edit cm/coredns -n kube-system
## log
## cache 30 
# kubectl scale deployment/coredns -n kube-system --replicas=1
# kubectl get pods –watch
# kubectl get pods -l k8s-app=kube-dns -n kube-system -o wide
# kubectl scale deployment/coredns -n kube-system --replicas=2

apiVersion: apps/v1