1、isn't running or healthy

[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
[kubelet-check] Initial timeout of 40s passed.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get "http://localhost:10248/healthz": dial tcp 127.0.0.1:10248: connect: connection refused.

解决办法：

1.1、关闭Swap

1.2、做如下处理

I faced similar issue recently. The problem was cgroup driver. Kubernetes cgroup driver was set to systems but docker was set to systemd. So I created '/etc/docker/daemon.json' and added below:

{
"exec-opts": ["native.cgroupdriver=systemd"]
}
Then

 systemctl daemon-reload
 systemctl restart docker
 systemctl restart kubelet
Run kubeadm init or kubeadm join again.

2、无法下载coredns处理

docker pull coredns/coredns
kubeadm config images list --config new.yaml
docker images
docker tag coredns/coredns:latest registry.cn-hangzhou.aliyuncs.com/google_containers/coredns/coredns:v1.8.4
docker rmi coredns/coredns:latest

3、The connection to the server localhost:8080 was refused - did you specify the right host or port?

echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> /etc/profile
source /etc/profile

4、Node节点：Config not found: /etc/kubernetes/admin.conf

mv /etc/kubernetes/kubelet.conf /etc/kubernetes/admin.conf