sudo kubeadm config print init-defaults
frank@kubemaster:~/.kube$ sudo kubeadm config print init-defaultsapiVersion: kubeadm.k8s.io/v1beta2bootstrapTokens: taints: null apiServer:timeoutForControlPlane: 4m0sapiVersion: kubeadm.k8s.io/v1beta2certificatesDir: /etc/kubernetes/pkiclusterName: kubernetescontrollerManager: {}dns:type: CoreDNSetcd:local:dataDir: /var/lib/etcdimageRepository: k8s.gcr.iokind: ClusterConfigurationkubernetesVersion: 1.21.0networking:dnsDomain: cluster.localserviceSubnet: 10.96.0.0/12scheduler: {}