k8s 節點擴容

對於已經存在的集群，想要擴容，將一個新的node假如集群需要在master上運行以下命令，生成token

sudo kubeadm token create  --print-join-command

然后在想要假如的node上運行

sudo kubeadm join

假如新加入的node存在以下問題
則在此node上執行

kubeadm reset
systemctl stop kubelet
systemctl stop docker
rm -rf /var/lib/cni/
rm -rf /var/lib/kubelet/*
rm -rf /etc/cni/
ip link delete cni0
ip link delete flannel.1
systemctl restart kubelet
systemctl restart docker

注意 並運行一下命令

sudo mkdir ~/.kube
sudo cp /etc/kubernetes/admin.conf ~/.kube/

cd ~/.kube

sudo mv admin.conf config
sudo service kubelet restart