BUG: 单节点部署节点Notready

[openstack-test]

问题
部署单节点后，节点一直处于Notready状态。
安装命令

sealos run labring/kubernetes:v1.24.0 --single

# kubectl get nodes
NAME   STATUS     ROLES           AGE   VERSION
k8s    NotReady   control-plane   11m   v1.24.0

查看日志，提示 Network plugin returns error: cni plugin not initialized

# journalctl -f
-- Logs begin at Tue 2022-08-30 08:37:32 EDT. --
Aug 30 08:49:56 k8s kubelet[3727]: E0830 08:49:56.900991    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:01 k8s kubelet[3727]: E0830 08:50:01.906643    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:06 k8s kubelet[3727]: E0830 08:50:06.908499    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:11 k8s kubelet[3727]: E0830 08:50:11.911566    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:16 k8s kubelet[3727]: E0830 08:50:16.914290    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:21 k8s kubelet[3727]: E0830 08:50:21.915318    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:26 k8s kubelet[3727]: E0830 08:50:26.923991    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:31 k8s kubelet[3727]: E0830 08:50:31.926651    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"
Aug 30 08:50:36 k8s kubelet[3727]: E0830 08:50:36.928546    3727 kubelet.go:2344] "Container runtime network not ready" networkReady="NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: cni plugin not initialized"

查看pod

# kubectl get po -A
NAMESPACE     NAME                          READY   STATUS    RESTARTS   AGE
kube-system   coredns-6d4b75cb6d-9jp9z      0/1     Pending   0          10s
kube-system   coredns-6d4b75cb6d-tdmtx      0/1     Pending   0          11m
kube-system   etcd-k8s                      1/1     Running   0          11m
kube-system   kube-apiserver-k8s            1/1     Running   0          11m
kube-system   kube-controller-manager-k8s   1/1     Running   0          11m
kube-system   kube-proxy-x97tc              1/1     Running   0          11m
kube-system   kube-scheduler-k8s            1/1     Running   0          11m

尝试过的解决办法，均无效

 systemctl restart containerd
 systemctl restart kubelet

版本描述
OS：CentOS Linux release 7.9.2009 (Core)
sealos : 4.1.0-rc3

[cuisongliu]

没装cni 这个是正常情况

[openstack-test]

@cuisongliu 怎么安装？难道不自动安装flannel这些组件吗？

[cuisongliu]

再安装一下cni 的镜像就可以

[openstack-test]

@cuisongliu 可以提供下命令吗，官网文档没找到有

[cuisongliu]

sealos run labring/calico:v3.22.1

[openstack-test]

@cuisongliu https://www.sealos.io/zh-Hans/docs/getting-started/kuberentes-life-cycle 老哥提个小建议，完善下官网文档吧。单节点安装命令：

sealos run kubernetes:v1.25.0 --single

有2处错误，1是镜像地址不全会失败；2是缺少部署cni组件

[openstack-test]

还有第3处错误。即不能使用这个文档 https://www.sealos.io/zh-Hans/docs/getting-started/installation 安装的sealos 4.0.0 版本。否则会报错提示无效的 --single参数

[openstack-test]

第三处问题，见 #1659 部署v1.25.0, 需要使用v4.1.0-rc3 版本，建议说明清楚使用版本。谢谢

[fanux]

感谢反馈 这就修改