加入集群
Master加入集群组成高可用
复制KEY到各个master节点
复制文件到 k8s-master-02
ssh [email protected] mkdir -p /etc/kubernetes/pki/etcd
scp /etc/kubernetes/admin.conf [email protected]:/etc/kubernetes
scp /etc/kubernetes/pki/{ca.*,sa.*,front-proxy-ca.*} [email protected]:/etc/kubernetes/pki
scp /etc/kubernetes/pki/etcd/ca.* [email protected]:/etc/kubernetes/pki/etcdmaster节点加入集群
kubeadm join master.k8s.io:16443 --token dm3cw1.kw4hq84ie1376hji --discovery-token-ca-cert-hash sha256:f079b624773145ba714b56e177f52143f90f75a1dcebabda6538a49e224d4009 --experimental-control-plane
......
This node has joined the cluster and a new control plane instance was created:
* Certificate signing request was sent to apiserver and approval was received.
* The Kubelet was informed of the new secure connection details.
* Master label and taint were applied to the new node.
* The Kubernetes control plane instances scaled up.
* A new etcd member was added to the local/stacked etcd cluster.
To start administering your cluster from this node, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
Run 'kubectl get nodes' to see this node join the cluster.如果加入失败，请输入 kubeadm reset 重置，重新执行从“复制KEY”和“加入集群”这两步
配置kubectl环境变量
node节点加入集群
除了让master节点加入集群组成高可用外，slave节点也要加入集群中。
这里将k8s-node-01、k8s-node-02加入集群，进行工作
输入初始化k8s master时候提示的加入命令，如下：
如果忘记加入集群的token和sha256 (如正常则跳过)
显示获取token列表
默认情况下 Token 过期是时间是24小时，如果 Token 过期以后，可以输入以下命令，生成新的 Token
获取ca证书sha256编码hash值
拼接命令
对于master加入，请加上 --experimental-control-plane 参数
查看各个节点加入集群情况
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