k8s 节点扩容

对于已经存在的集群，想要扩容，将一个新的node假如集群需要在master上运行以下命令，生成token

sudo kubeadm token create  --print-join-command

然后在想要假如的node上运行

sudo kubeadm join

假如新加入的node存在以下问题
则在此node上执行

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 并运行一下命令

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

cd ~/.kube

sudo mv admin.conf config
sudo service kubelet restart