按照步骤创建单个主集群，我能够成功初始化主集群，但是在应用时出现禁止错误，有人遇到过同样的情况吗？谢谢！
我做了以下
1. disable selinux in /etc/selinux/config, and reboot
2. comment out KUBELET_NETWORK_ARGS in
/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
3. export no_proxy=$no_proxy,<master-ip>
4. export KUBECONFIG=/etc/kubernetes/kubelet.conf in .bash_profile
初始化成功后，尝试申请时
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml
我收到以下错误消息
Error from server (Forbidden): error when retrieving current configuration of:
&{0xc42048ab40 0xc421a83730
flannel https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml 0xc42109cc20 false}
from server for: "https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml":
clusterroles.rbac.authorization.k8s.io "flannel" is forbidden:
User "system:node:<master-server-name>"
cannot get clusterroles.rbac.authorization.k8s.io at the cluster scope
kubernetes ×1