TokenUser defines token user
const TokenUser = "tls-bootstrap-token-user"
func DiscoverValidatedKubeConfig(cfg *kubeadmapi.JoinConfiguration) (*clientcmdapi.Config, error)
DiscoverValidatedKubeConfig returns a validated Config object that specifies where the cluster is and the CA cert to trust
func For(cfg *kubeadmapi.JoinConfiguration) (*clientcmdapi.Config, error)
For returns a kubeconfig object that can be used for doing the TLS Bootstrap with the right credentials Also, before returning anything, it makes sure it can trust the API Server