初始化文件

修改对应masterIP，注意serviceSubnet不要跟现有的网段冲突

apiVersion: kubeadm.k8s.io/v1beta3kind: InitConfigurationlocalAPIEndpoint:  advertiseAddress: 192.168.200.100  bindPort: 6443nodeRegistration:  criSocket: /var/run/dockershim.sock  imagePullPolicy: IfNotPresent  name: centos7.example.com  taints: null---apiServer:  timeoutForControlPlane: 4m0sapiVersion: kubeadm.k8s.io/v1beta3certificatesDir: /etc/kubernetes/pkiclusterName: kubernetescontrollerManager: {}dns: {}etcd:  local:    dataDir: /var/lib/etcdimageRepository: registry.aliyuncs.com/google_containerskind: ClusterConfigurationkubernetesVersion: 1.23.6networking:  dnsDomain: cluster.local  podSubnet: 10.244.0.0/16  serviceSubnet: 10.96.0.0/12scheduler: {}---apiVersion: kubeproxy.config.k8s.io/v1alpha1kind: KubeProxyConfigurationmode: ipvs

初始化

上面的配置文件保存成kubeadm-config.yaml

kubeadm config images pull  --image-repository registry.aliyuncs.com/google_containerskubeadm init --config=kubeadm-config.yaml --upload-certs | tee init-cluster.log

初始化完成，复制kubeconfig就可以使用kubectl进行操作

  mkdir -p $HOME/.kube  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config  sudo chown $(id -u):$(id -g) $HOME/.kube/config

kubectl可以安装网络插件，node就会变成ready

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml