1. kubectl describe node master
    1. kubectl get pods -n kube-system
    2. NAME                                              READY   STATUS    RESTARTS   AGE
    3. coredns-558bd4d5db-8l5cn                          1/1     Running   0          31h
    4. coredns-558bd4d5db-l97x4                          1/1     Running   0          31h
    5. etcd-great-win-1.localdomain                      1/1     Running   0          31h
    6. kube-apiserver-great-win-1.localdomain            1/1     Running   0          31h
    7. kube-controller-manager-great-win-1.localdomain   1/1     Running   0          31h
    8. kube-proxy-zpbch                                  1/1     Running   0          31h
    9. kube-scheduler-great-win-1.localdomain            1/1     Running   0          31h
    10. weave-net-kgdb8