apiVersion: kubeadm.k8s.io/v1beta3
kind: ClusterConfiguration
kubernetesVersion: v1.28.2
controlPlaneEndpoint: 10.10.21.100:8443
imageRepository: registry.aliyuncs.com/google_containers
apiServer:
 certSANs:
 - 10.10.21.100
 - 10.10.21.110
 - 10.10.21.111
 - 10.10.21.112
 - 10.10.21.113
 - 10.10.21.114
 - 10.10.21.115
networking:
  podSubnet: 10.244.0.0/16
  serviceSubnet: 10.96.0.0/12