kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
https://github.com/flannel-io/flannel/blob/master/Documentation/kube-flannel.yml
kubeadm init \--kubernetes-version=v1.23.5 \--image-repository registry.aliyuncs.com/google_containers \--pod-network-cidr=10.20.0.0/16 \--service-cidr=172.26.0.0/16 \--apiserver-advertise-address=192.168.19.30 \--ignore-preflight-errors=Swap