kubelet Startup Error:

"Failed to run kubelet" err="failed to run Kubelet: misconfiguration: kubelet cgroup driver: \"cgrou...: \"systemd\""
systemctl status kubelet
[[email protected] kubernetes]# systemctl status kubelet
● kubelet.service - Kubernetes Kubelet
   Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since 一 2022-03-21 15:29:19 CST; 23s ago
  Process: 30267 ExecStart=/usr/bin/kubelet (code=exited, status=1/FAILURE)
 Main PID: 30267 (code=exited, status=1/FAILURE)
3月 21 15:29:19 k8s-node1 kubelet[30267]: E0321 15:29:19.200485   30267 server.go:302] "Failed to run kubelet" err="failed to run Kubelet: misconfiguration: kubelet cgroup driver: \"cgrou...: \"systemd\""
3月 21 15:29:19 k8s-node1 systemd[1]: kubelet.service: main process exited, code=exited, status=1/FAILURE
3月 21 15:29:19 k8s-node1 systemd[1]: Unit kubelet.service entered failed state.
3月 21 15:29:19 k8s-node1 systemd[1]: kubelet.service failed.
3月 21 15:29:19 k8s-node1 systemd[1]: kubelet.service holdoff time over, scheduling restart.
3月 21 15:29:19 k8s-node1 systemd[1]: Stopped Kubernetes Kubelet.
3月 21 15:29:19 k8s-node1 systemd[1]: start request repeated too quickly for kubelet.service
3月 21 15:29:19 k8s-node1 systemd[1]: Failed to start Kubernetes Kubelet.
3月 21 15:29:19 k8s-node1 systemd[1]: Unit kubelet.service entered failed state.
3月 21 15:29:19 k8s-node1 systemd[1]: kubelet.service failed.
Hint: Some lines were ellipsized, use -l to show in full.

Solution:
Remove native.cgroupdriver=systemd from the docker configuration file or change systemd to cgroupfs

vim /etc/docker/daemon.json 
{
    "exec-opts": ["native.cgroupdriver=cgroupfs"]
}
systemctl daemon-reload
systemctl enable kubelet
systemctl restart kubelet
systemctl status kubelet

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