kubectl get pods --namespace=kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE
kube-apiserver-172.30.1.100 1/1 Running 0 3m 172.30.1.100 172.30.1.100
kube-controller-manager-172.30.1.100 1/1 Running 7 3h 172.30.1.100 172.30.1.100
kube-dns-v20-gg303 2/3 CrashLoopBackOff 56 1h 10.2.68.2 172.30.1.101
kube-proxy-172.30.1.100 1/1 Running 3 3h 172.30.1.100 172.30.1.100
kube-proxy-172.30.1.101 1/1 Running 2 3h 172.30.1.101 172.30.1.101
kube-proxy-172.30.1.102 1/1 Running 2 3h 172.30.1.102 172.30.1.102
kube-proxy-172.30.1.103 1/1 Running 2 3h 172.30.1.103 172.30.1.103
kube-scheduler-172.30.1.100 1/1 Running 5 3h 172.30.1.100 172.30.1.100
kubernetes-dashboard-v1.6.0-p98p6 0/1 CrashLoopBackOff 24 1h 10.2.2.2 172.30.1.102
kubectl describe pods kube-dns-v20-gg303 --namespace=kube-system
systemctl status kubelet
kubectl describe service kube-dns --namespace=kube-system
kubectl describe svc kubernetes
kubectl logs --namespace=kube-system $(kubectl get pods --namespace=kube-system -l k8s-app=kube-dns -o name) -c kubedns
