k8s集群node节点加入失败

出现这种情况：

[preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Starting the kubelet
[kubelet-start] Waiting for the kubelet to perform the TLS Bootstrap...
[kubelet-check] Initial timeout of 40s passed.
error execution phase kubelet-start: error uploading crisocket: Unauthorized
To see the stack trace of this error execute with --v=5 or higher

这是因为我最初初始化主节点的时候加入了该节点，然后kubeadm reset了，，需要初始化一下node节点才能成功，具体执行操作如下：

kubelet reset一下，然后发现node节点还是notready，journalctl  -f -u kubelet命令查看，出现如下：

[failed to find plugin \"flannel\" in path [/opt/cni/bin]]"
6月 27 22:01:42 nodeOne kubelet[7665]: I0627 22:01:42.792331    7665 cni.go:240] "Unable to update cni config" err="no valid networks found in /etc/cni/net.d"
6月 27 22:01:42 nodeOne kubelet[7665]: E0627 22:01:42.803879    7665 kubelet.go:2347] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized"
6月 27 22:01:47 nodeOne kubelet[7665]: I0627 22:01:47.797916    7665 cni.go:205] "Error validating CNI config list" configList="{\n  \"name\": \"cbr0\",\n  \"cniVersion\": \"0.3.1\",\n  \"plugins\": [\n    {\n      \"type\": \"flannel\",\n      \"delegate\": {\n        \"hairpinMode\": true,\n        \"isDefaultGateway\": true\n      }\n    },\n    {\n      \"type\": \"portmap\",\n      \"capabilities\": {\n        \"portMappings\": true\n      }\n    }\n  ]\n}\n" err="[failed to find plugin \"flannel\" in path [/opt/cni/bin]]"
6月 27 22:01:47 nodeOne kubelet[7665]: I0627 22:01:47.797937    7665 cni.go:240] "Unable to update cni config" err="no valid networks found in /etc/cni/net.d"
6月 27 22:01:47 nodeOne kubelet[7665]: E0627 22:01:47.809606    7665 kubelet.go:2347] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized",和主节点一样问题，未安装cni网络插件，下载，然后到/opt/cni/bin目录下解压，然后在网上下载一个flannel插件就可以的