控制面板 node 节点
主机名 k8s node-1
IP 192.168.80.60 192.168.80.16
  1. 安装 vim

    sudo yum -y install vim
  2. 安装 wget 
    sudo yum -y install wget
  3. 将主机名指向本机IP，主机名只能包含：字母、数字、-（横杠）、.（点）
    1. 获取主机名
    hostname
    1. 临时设置主机名
    hostname 主机名
    1. 永久设置主机名
    sudo echo '主机名' > /etc/hostname
    1. 编辑 hosts
    sudo vim /etc/hosts
    1. 控制面板：设置IP
    192.168.80.60   k8s
    1. node 节点：设置IP
    192.168.80.16    node-1
  4. 安装并配置 ntpdate，同步时间 
    sudo yum -y install ntpdate
sudo ntpdate ntp1.aliyun.com
sudo systemctl status ntpdate
sudo systemctl start ntpdate
sudo systemctl status ntpdate
sudo systemctl enable ntpdate
  5. 安装并配置 bash-completion，添加命令自动补充 
    sudo yum -y install bash-completion
source /etc/profile
  6. 关闭防火墙 
    sudo systemctl stop firewalld.service
sudo systemctl disable firewalld.service
  7. 关闭交换空间 
    sudo swapoff -a
sudo sed -i 's/.*swap.*/#&/' /etc/fstab
  8. 关闭 selinux 
    getenforce
cat /etc/selinux/config
sudo setenforce 0
sudo sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config
cat /etc/selinux/config
  9. 安装 Docker 
    sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# yum --showduplicates list docker-ce
sudo yum install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
sudo yum install -y containerd# 启动 docker 时，会启动 containerd
# sudo systemctl status containerd.service
sudo systemctl stop containerd.servicesudo cp /etc/containerd/config.toml /etc/containerd/config.toml.bak
sudo containerd config default > $HOME/config.toml
sudo cp $HOME/config.toml /etc/containerd/config.toml
# 修改 /etc/containerd/config.toml 文件后，要将 docker、containerd 停止后，再启动
sudo sed -i "s#registry.k8s.io/pause#registry.cn-hangzhou.aliyuncs.com/google_containers/pause#g" /etc/containerd/config.tomlsudo systemctl enable --now containerd.service
# sudo systemctl status containerd.service# sudo systemctl status docker.service
sudo systemctl start docker.service
# sudo systemctl status docker.service
sudo systemctl enable docker.service
sudo systemctl enable docker.socket
sudo systemctl list-unit-files | grep dockersudo tee /etc/docker/daemon.json <<-'EOF'
{"registry-mirrors": ["https://hnkfbj7x.mirror.aliyuncs.com"],"exec-opts": ["native.cgroupdriver=systemd"]
}
EOFsudo systemctl daemon-reload
sudo systemctl restart docker
sudo docker info

    sudo systemctl status docker.service

    sudo systemctl status containerd.service
  10. 添加阿里云 k8s 镜像仓库 
    cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
# 是否开启本仓库
enabled=1
# 是否检查 gpg 签名文件
gpgcheck=0
# 是否检查 gpg 签名文件
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
  11. 安装 k8s 1.25.3 所需依赖 
    # yum --showduplicates list kubelet --nogpgcheck
# yum --showduplicates list kubeadm --nogpgcheck
# yum --showduplicates list kubectl --nogpgcheck
# 如果你看到有人说 node 节点不需要安装 kubectl，其实这种说法是错的，kubectl 会被当做依赖安装，如果安装过程没有指定 kubectl 的版本，则会安装最新版的 kubectl，可能会导致程序运行异常
sudo yum install -y kubelet-1.25.3-0 kubeadm-1.25.3-0 kubectl-1.25.3-0 --disableexcludes=kubernetes --nogpgcheck# journalctl -xefu kubeletsystemctl daemon-reload
sudo systemctl restart kubelet
sudo systemctl enable kubelet

    sudo systemctl status kubelet
  12. 已上命令需要在控制面板与node节点执行，并确保没有错误与警告
  13. 已上命令需要在控制面板与node节点执行，并确保没有错误与警告
  14. 已上命令需要在控制面板与node节点执行，并确保没有错误与警告
  15. 控制面板：初始化 
    yum -y install iproute-tc

    kubeadm init --image-repository=registry.aliyuncs.com/google_containersmkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/configkubectl cluster-info# 初始化失败后，可进行重置，重置命令：kubeadm reset# 执行成功后，会出现类似下列内容：
# kubeadm join 192.168.80.60:6443 --token f9lvrz.59mykzssqw6vjh32 \
# --discovery-token-ca-cert-hash sha256:4e23156e2f71c5df52dfd2b9b198cce5db27c47707564684ea74986836900107
  16. node 节点：加入集群 
    # 运行的内容来自上方执行结果
kubeadm join 192.168.80.60:6443 --token f9lvrz.59mykzssqw6vjh32 \
--discovery-token-ca-cert-hash sha256:4e23156e2f71c5df52dfd2b9b198cce5db27c47707564684ea74986836900107
  17. 控制面板： 
    kubectl get pods --all-namespaces -o wide

    可以查看到 coredns-* 的状态是 Pending，nodes 为 NotReady，原因是网络还未配置

    [root@k8s ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                          READY   STATUS    RESTARTS   AGE     IP              NODE            NOMINATED NODE   READINESS GATES
kube-system   coredns-c676cc86f-4lncg       0/1     Pending   0          3m19s   <none>          <none>          <none>           <none>
kube-system   coredns-c676cc86f-7n9wv       0/1     Pending   0          3m19s   <none>          <none>          <none>           <none>
kube-system   etcd-k8s                      1/1     Running   0          3m26s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-apiserver-k8s            1/1     Running   0          3m23s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-controller-manager-k8s   1/1     Running   0          3m23s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-proxy-87lx5              1/1     Running   0          81s     192.168.0.18    centos-7-9-16   <none>           <none>
kube-system   kube-proxy-rctn6              1/1     Running   0          3m19s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-scheduler-k8s            1/1     Running   0          3m23s   192.168.80.60   k8s             <none>           <none>
[root@k8s ~]#

    [root@k8s ~]# kubectl get nodes -o wide
NAME            STATUS     ROLES           AGE     VERSION   INTERNAL-IP     EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION           CONTAINER-RUNTIME
centos-7-9-16   NotReady   <none>          7m58s   v1.25.3   192.168.0.18    <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
k8s             NotReady   control-plane   10m     v1.25.3   192.168.80.60   <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
[root@k8s ~]#
  18. 控制面板：配置网络，选择 Calico 配置
    Kubernetes 版本 Calico 版本 Calico 文档
    1.18、1.19、1.20 3.18 https://projectcalico.docs.tigera.io/archive/v3.18/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.18/manifests/calico.yaml
    1.19、1.20、1.21 3.19 https://projectcalico.docs.tigera.io/archive/v3.19/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.19/manifests/calico.yaml
    1.19、1.20、1.21 3.20 https://projectcalico.docs.tigera.io/archive/v3.20/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.20/manifests/calico.yaml
    1.20、1.21、1.22 3.21 https://projectcalico.docs.tigera.io/archive/v3.21/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.21/manifests/calico.yaml
    1.21、1.22、1.23 3.22 https://projectcalico.docs.tigera.io/archive/v3.22/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.22/manifests/calico.yaml
    1.21、1.22、1.23 3.23 https://projectcalico.docs.tigera.io/archive/v3.23/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.23/manifests/calico.yaml
    1.22、1.23、1.24 3.24 https://projectcalico.docs.tigera.io/archive/v3.24/getting-started/kubernetes/requirements https://projectcalico.docs.tigera.io/archive/v3.24/manifests/calico.yaml 
    # 下载
wget --no-check-certificate https://projectcalico.docs.tigera.io/archive/v3.24/manifests/calico.yaml
# 修改 calico.yaml 文件
vim calico.yaml

    在 - name: CLUSTER_TYPE 下方添加如下内容

    - name: CLUSTER_TYPEvalue: "k8s,bgp"# 下方为新增内容
- name: IP_AUTODETECTION_METHODvalue: "interface=网卡名称"

    配置网络

    kubectl apply -f calico.yaml
  19. 控制面板：查看 pods、nodes 
    kubectl get nodes -o wide

    [root@k8s ~]# kubectl get nodes -o wide
NAME            STATUS     ROLES           AGE     VERSION   INTERNAL-IP     EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION           CONTAINER-RUNTIME
centos-7-9-16   NotReady   <none>          7m58s   v1.25.3   192.168.0.18    <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
k8s             NotReady   control-plane   10m     v1.25.3   192.168.80.60   <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
[root@k8s ~]#

    kubectl get pods --all-namespaces -o wide

    [root@k8s ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                      READY   STATUS     RESTARTS   AGE     IP              NODE            NOMINATED NODE   READINESS GATES
kube-system   calico-kube-controllers-f79f7749d-rkqgw   0/1     Pending    0          11s     <none>          <none>          <none>           <none>
kube-system   calico-node-7698p                         0/1     Init:0/3   0          11s     192.168.80.60   k8s             <none>           <none>
kube-system   calico-node-tvhnb                         0/1     Init:0/3   0          11s     192.168.0.18    centos-7-9-16   <none>           <none>
kube-system   coredns-c676cc86f-4lncg                   0/1     Pending    0          8m14s   <none>          <none>          <none>           <none>
kube-system   coredns-c676cc86f-7n9wv                   0/1     Pending    0          8m14s   <none>          <none>          <none>           <none>
kube-system   etcd-k8s                                  1/1     Running    0          8m21s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-apiserver-k8s                        1/1     Running    0          8m18s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-controller-manager-k8s               1/1     Running    0          8m18s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-proxy-87lx5                          1/1     Running    0          6m16s   192.168.0.18    centos-7-9-16   <none>           <none>
kube-system   kube-proxy-rctn6                          1/1     Running    0          8m14s   192.168.80.60   k8s             <none>           <none>
kube-system   kube-scheduler-k8s                        1/1     Running    0          8m18s   192.168.80.60   k8s             <none>           <none>
[root@k8s ~]#
  20. 控制面板：等待几分钟后，再次查看 pods、nodes 
    kubectl get nodes -o wide

    [root@k8s ~]# kubectl get nodes -o wide
NAME            STATUS   ROLES           AGE   VERSION   INTERNAL-IP     EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION           CONTAINER-RUNTIME
centos-7-9-16   Ready    <none>          23m   v1.25.3   192.168.80.16   <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
k8s             Ready    control-plane   25m   v1.25.3   192.168.80.60   <none>        CentOS Linux 7 (Core)   3.10.0-1160.el7.x86_64   containerd://1.6.9
[root@k8s ~]#

    kubectl get pods --all-namespaces -o wide

    [root@k8s ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                      READY   STATUS    RESTARTS            AGE   IP              NODE            NOMINATED NODE   READINESS GATES
kube-system   calico-kube-controllers-f79f7749d-rkqgw   1/1     Running   2 (52s ago)         17m   172.16.77.9     k8s             <none>           <none>
kube-system   calico-node-7698p                         0/1     Running   2 (52s ago)         17m   192.168.80.60   k8s             <none>           <none>
kube-system   calico-node-tvhnb                         0/1     Running   0                   17m   192.168.80.16   centos-7-9-16   <none>           <none>
kube-system   coredns-c676cc86f-4lncg                   1/1     Running   2 (52s ago)         25m   172.16.77.8     k8s             <none>           <none>
kube-system   coredns-c676cc86f-7n9wv                   1/1     Running   2 (52s ago)         25m   172.16.77.7     k8s             <none>           <none>
kube-system   etcd-k8s                                  1/1     Running   2 (52s ago)         25m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-apiserver-k8s                        1/1     Running   2 (52s ago)         25m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-controller-manager-k8s               1/1     Running   2 (52s ago)         25m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-proxy-87lx5                          1/1     Running   1 (<invalid> ago)   23m   192.168.80.16   centos-7-9-16   <none>           <none>
kube-system   kube-proxy-rctn6                          1/1     Running   2 (52s ago)         25m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-scheduler-k8s                        1/1     Running   2 (52s ago)         25m   192.168.80.60   k8s             <none>           <none>
[root@k8s ~]#
  21. 至此，k8s安装与配置已完成，下面内容是测试。
  22. 控制面板： 
    vim nginx.yaml

    apiVersion: apps/v1
kind: Deployment
metadata:name: nginx-deploymentlabels:app: nginx
spec:replicas: 2selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:containers:- name: nginximage: nginx:1.23.2ports:- containerPort: 80

    kubectl apply -f nginx.yaml
  23. 控制面板：查看 
    kubectl get pods --all-namespaces -o wide

    [root@k8s ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                      READY   STATUS              RESTARTS            AGE   IP              NODE            NOMINATED NODE   READINESS GATES
default       nginx-deployment-86956f97b8-nfv2l         0/1     ContainerCreating   0                   15s   <none>          centos-7-9-16   <none>           <none>
default       nginx-deployment-86956f97b8-x26kx         0/1     ContainerCreating   0                   15s   <none>          centos-7-9-16   <none>           <none>
kube-system   calico-kube-controllers-f79f7749d-rkqgw   1/1     Running             2 (6m22s ago)       23m   172.16.77.9     k8s             <none>           <none>
kube-system   calico-node-7698p                         0/1     Running             2 (6m22s ago)       23m   192.168.80.60   k8s             <none>           <none>
kube-system   calico-node-tvhnb                         0/1     Running             0                   23m   192.168.80.16   centos-7-9-16   <none>           <none>
kube-system   coredns-c676cc86f-4lncg                   1/1     Running             2 (6m22s ago)       31m   172.16.77.8     k8s             <none>           <none>
kube-system   coredns-c676cc86f-7n9wv                   1/1     Running             2 (6m22s ago)       31m   172.16.77.7     k8s             <none>           <none>
kube-system   etcd-k8s                                  1/1     Running             2 (6m22s ago)       31m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-apiserver-k8s                        1/1     Running             2 (6m22s ago)       31m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-controller-manager-k8s               1/1     Running             2 (6m22s ago)       31m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-proxy-87lx5                          1/1     Running             1 (<invalid> ago)   29m   192.168.80.16   centos-7-9-16   <none>           <none>
kube-system   kube-proxy-rctn6                          1/1     Running             2 (6m22s ago)       31m   192.168.80.60   k8s             <none>           <none>
kube-system   kube-scheduler-k8s                        1/1     Running             2 (6m22s ago)       31m   192.168.80.60   k8s             <none>           <none>
[root@k8s ~]#

    kubectl get pods -o wide

    [root@k8s ~]# kubectl get pods -o wide
NAME                                READY   STATUS              RESTARTS   AGE   IP       NODE            NOMINATED NODE   READINESS GATES
nginx-deployment-86956f97b8-nfv2l   0/1     ContainerCreating   0          35s   <none>   centos-7-9-16   <none>           <none>
nginx-deployment-86956f97b8-x26kx   0/1     ContainerCreating   0          35s   <none>   centos-7-9-16   <none>           <none>
[root@k8s ~]#
  24. 控制面板：几分钟后再查看 
    kubectl get pods --all-namespaces -o wide

    [root@k8s ~]# kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                      READY   STATUS    RESTARTS            AGE     IP               NODE            NOMINATED NODE   READINESS GATES
default       nginx-deployment-86956f97b8-nfv2l         1/1     Running   0                   3m30s   172.16.132.193   centos-7-9-16   <none>           <none>
default       nginx-deployment-86956f97b8-x26kx         1/1     Running   0                   3m30s   172.16.132.194   centos-7-9-16   <none>           <none>
kube-system   calico-kube-controllers-f79f7749d-rkqgw   1/1     Running   2 (9m37s ago)       26m     172.16.77.9      k8s             <none>           <none>
kube-system   calico-node-7698p                         0/1     Running   2 (9m37s ago)       26m     192.168.80.60    k8s             <none>           <none>
kube-system   calico-node-tvhnb                         0/1     Running   0                   26m     192.168.80.16    centos-7-9-16   <none>           <none>
kube-system   coredns-c676cc86f-4lncg                   1/1     Running   2 (9m37s ago)       34m     172.16.77.8      k8s             <none>           <none>
kube-system   coredns-c676cc86f-7n9wv                   1/1     Running   2 (9m37s ago)       34m     172.16.77.7      k8s             <none>           <none>
kube-system   etcd-k8s                                  1/1     Running   2 (9m37s ago)       34m     192.168.80.60    k8s             <none>           <none>
kube-system   kube-apiserver-k8s                        1/1     Running   2 (9m37s ago)       34m     192.168.80.60    k8s             <none>           <none>
kube-system   kube-controller-manager-k8s               1/1     Running   2 (9m37s ago)       34m     192.168.80.60    k8s             <none>           <none>
kube-system   kube-proxy-87lx5                          1/1     Running   1 (<invalid> ago)   32m     192.168.80.16    centos-7-9-16   <none>           <none>
kube-system   kube-proxy-rctn6                          1/1     Running   2 (9m37s ago)       34m     192.168.80.60    k8s             <none>           <none>
kube-system   kube-scheduler-k8s                        1/1     Running   2 (9m37s ago)       34m     192.168.80.60    k8s             <none>           <none>
[root@k8s ~]# 
    kubectl get pods -o wide

    [root@k8s ~]# kubectl get pods -o wide
NAME                                READY   STATUS    RESTARTS   AGE     IP               NODE            NOMINATED NODE   READINESS GATES
nginx-deployment-86956f97b8-nfv2l   1/1     Running   0          4m31s   172.16.132.193   centos-7-9-16   <none>           <none>
nginx-deployment-86956f97b8-x26kx   1/1     Running   0          4m31s   172.16.132.194   centos-7-9-16   <none>           <none>
[root@k8s ~]#
  25. 控制面板：查看pod,svc 
    kubectl get pod,svc -o wide

    [root@k8s ~]# kubectl get pod,svc -o wide
NAME                                    READY   STATUS    RESTARTS   AGE     IP               NODE            NOMINATED NODE   READINESS GATES
pod/nginx-deployment-86956f97b8-nfv2l   1/1     Running   0          4m59s   172.16.132.193   centos-7-9-16   <none>           <none>
pod/nginx-deployment-86956f97b8-x26kx   1/1     Running   0          4m59s   172.16.132.194   centos-7-9-16   <none>           <none>NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE   SELECTOR
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   36m   <none>
[root@k8s ~]#
  26. 控制面板：设置服务 
    kubectl expose deployment nginx-deployment --type=NodePort --name=nginx-service
  27. 控制面板：查看pod,svc 
    kubectl get pod,svc -o wide

    [root@k8s ~]# kubectl get pod,svc -o wide
NAME                                    READY   STATUS    RESTARTS   AGE     IP               NODE            NOMINATED NODE   READINESS GATES
pod/nginx-deployment-86956f97b8-nfv2l   1/1     Running   0          7m58s   172.16.132.193   centos-7-9-16   <none>           <none>
pod/nginx-deployment-86956f97b8-x26kx   1/1     Running   0          7m58s   172.16.132.194   centos-7-9-16   <none>           <none>NAME                    TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE   SELECTOR
service/kubernetes      ClusterIP   10.96.0.1       <none>        443/TCP        39m   <none>
service/nginx-service   NodePort    10.109.120.77   <none>        80:30593/TCP   55s   app=nginx
[root@k8s ~]#
  28. 重启控制面板、node节点
  29. 控制面板：查看pod,svc 
    kubectl get pod,svc -o wide

    [root@k8s ~]# kubectl get pod,svc -o wide
NAME                                    READY   STATUS    RESTARTS            AGE   IP               NODE            NOMINATED NODE   READINESS GATES
pod/nginx-deployment-86956f97b8-nfv2l   1/1     Running   1 (<invalid> ago)   11m   172.16.132.196   centos-7-9-16   <none>           <none>
pod/nginx-deployment-86956f97b8-x26kx   1/1     Running   1 (<invalid> ago)   11m   172.16.132.195   centos-7-9-16   <none>           <none>NAME                    TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE    SELECTOR
service/kubernetes      ClusterIP   10.96.0.1       <none>        443/TCP        42m    <none>
service/nginx-service   NodePort    10.109.120.77   <none>        80:30593/TCP   4m8s   app=nginx
[root@k8s ~]#

    可以看到：重启前后 pod/nginx-deployment-* IP 发生了变化，service/nginx-service 的 IP 与 端口没有发生变化，可在后面使用 service/nginx-service 的 端口

  30. 说明
    1. 提示：/proc/sys/net/bridge/bridge-nf-call-iptables
    error execution phase preflight: [preflight] Some fatal errors occurred:[ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables contents are not set to 1
[preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`
To see the stack trace of this error execute with --v=5 or higher

    执行

    sysctl -w net.bridge.bridge-nf-call-iptables=1
    1. 控制面板（master）作为node使用（去污）
      注意：此处的命令可能和你在网上看到去污命令不同，原因是k8s的版本不同

      # https://kubernetes.io/zh-cn/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#control-plane-node-isolation
kubectl taint nodes --all node-role.kubernetes.io/control-plane-

      可使用下列命令查看当前软件的去污的命令参数

      kubectl get no -o yaml | grep taint -A 10
    2. 控制平面节点上运行以下命令来获取令牌 
      kubeadm token list
    3. 默认情况下，令牌会在 24 小时后过期，可以通过在控制平面节点上运行以下命令来创建新令牌 
      kubeadm token create

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