老师，我按照视频里的和问答里面有同样问题的都执行了，俩进程还一直是pending状态？
[root@master Chapter4]# kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
namespace/kube-flannel created
clusterrole.rbac.authorization.k8s.io/flannel configured
clusterrolebinding.rbac.authorization.k8s.io/flannel configured
serviceaccount/flannel created
configmap/kube-flannel-cfg created
daemonset.apps/kube-flannel-ds created
[root@master Chapter4]# kubectl get po -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-6d56c8448f-7tc7s 0/1 Pending 0 28m
coredns-6d56c8448f-psn4k 0/1 Pending 0 28m
etcd-master 1/1 Running 0 28m
kube-apiserver-master 1/1 Running 0 28m
kube-controller-manager-master 1/1 Running 0 28m
kube-flannel-ds-hx5qc 1/1 Running 0 15m
kube-proxy-hlkcz 1/1 Running 0 28m
kube-scheduler-master 1/1 Running 0 28m