TokenDiscoverySkipCAHash = "discovery-token-unsafe-skip-ca-verification"

	// FileDiscovery flag sets the file or URL from which to load cluster information (for file-based discovery)
	FileDiscovery = "discovery-file"

	// ControlPlane flag instructs kubeadm to create a new control plane instance on this node
	ControlPlane = "control-plane"

	if cmd.Flags().Lookup(options.FileDiscovery) == nil {
		if _, err := os.Stat(adminKubeConfigPath); os.IsNotExist(err) {
			return nil, errors.Errorf("File %s does not exists. Please use 'kubeadm join phase control-plane-prepare' subcommands to generate it.", adminKubeConfigPath)
		}
		klog.V(1).Infof("[preflight] found discovery flags missing for this command. using FileDiscovery: %s", adminKubeConfigPath)

		}
	}

	if obj.File != nil {
		SetDefaults_FileDiscovery(obj.File)
	}
}

// SetDefaults_FileDiscovery assigns default values for file based discovery
func SetDefaults_FileDiscovery(obj *FileDiscovery) {
	// Make sure file URL becomes path
	if len(obj.KubeConfigPath) != 0 {
		u, err := url.Parse(obj.KubeConfigPath)
		if err == nil && u.Scheme == "file" {
			obj.KubeConfigPath = u.Path
		}
	}
}

			options.TLSBootstrapToken,
			options.TokenStr,
			options.ControlPlane,
			options.APIServerAdvertiseAddress,
			options.APIServerBindPort,
			options.NodeCRISocket,
			options.NodeName,
			options.FileDiscovery,
			options.TokenDiscovery,
			options.TokenDiscoveryCAHash,
			options.TokenDiscoverySkipCAHash,
			options.CertificateKey,
			options.DryRun,
		},
	}
}

	// +optional
	UnsafeSkipCAVerification bool `json:"unsafeSkipCAVerification,omitempty"`
}

// FileDiscovery is used to specify a file or URL to a kubeconfig file from which to load cluster information
type FileDiscovery struct {
	// KubeConfigPath is used to specify the actual file path or URL to the kubeconfig file from which to load cluster information

	}

	if obj.File != nil {
		SetDefaults_FileDiscovery(obj.File)
	}
}

// SetDefaults_FileDiscovery assigns default values for file based discovery
func SetDefaults_FileDiscovery(obj *FileDiscovery) {
	// Make sure file URL becomes path
	if len(obj.KubeConfigPath) != 0 {
		u, err := url.Parse(obj.KubeConfigPath)
		if err == nil && u.Scheme == "file" {
			obj.KubeConfigPath = u.Path
		}
	}
}

	// the security of kubeadm since other nodes can impersonate the control-plane.
	UnsafeSkipCAVerification bool
}

// FileDiscovery is used to specify a file or URL to a kubeconfig file from which to load cluster information
type FileDiscovery struct {
	// KubeConfigPath is used to specify the actual file path or URL to the kubeconfig file from which to load cluster information
	KubeConfigPath string
}

	// +optional
	UnsafeSkipCAVerification bool `json:"unsafeSkipCAVerification,omitempty"`
}

// FileDiscovery is used to specify a file or URL to a kubeconfig file from which to load cluster information
type FileDiscovery struct {
	// KubeConfigPath is used to specify the actual file path or URL to the kubeconfig file from which to load cluster information

		Run:   runKubeletStartJoinPhase,
		InheritFlags: []string{
			options.CfgPath,
			options.NodeCRISocket,
			options.NodeName,
			options.FileDiscovery,
			options.TokenDiscovery,
			options.TokenDiscoveryCAHash,
			options.TokenDiscoverySkipCAHash,
			options.TLSBootstrapToken,
			options.TokenStr,
			options.Patches,
			options.DryRun,
		},
	}
}

			CACertPath: "/some/cert.crt",
			Discovery: kubeadmapi.Discovery{
				BootstrapToken: &kubeadmapi.BootstrapTokenDiscovery{
					Token: "abcdef.1234567890123456@foobar",
				},
				File: &kubeadmapi.FileDiscovery{
					KubeConfigPath: "foo",
				},
			},
		}, false},
		{&kubeadmapi.JoinConfiguration{ // Pass without JoinControlPlane
			CACertPath: "/some/cert.crt",
			Discovery: kubeadmapi.Discovery{