func LoadUpgradeConfigurationFromFile(cfgPath string, _ LoadOrDefaultConfigurationOptions) (*kubeadmapi.UpgradeConfiguration, error) {
	var err error
	var upgradeCfg *kubeadmapi.UpgradeConfiguration

	// Otherwise, we have a config file. Let's load it.
	configBytes, err := os.ReadFile(cfgPath)
	if err != nil {
		return nil, errors.Wrapf(err, "unable to load config from file %q", cfgPath)
	}

		t.Run(rt.name, func(t2 *testing.T) {
			cfgPath := filepath.Join(tmpdir, rt.name)
			err := os.WriteFile(cfgPath, []byte(rt.fileContents), 0644)
			if err != nil {
				t.Errorf("Couldn't create file: %v", err)
				return
			}

			opts := LoadOrDefaultConfigurationOptions{
				SkipCRIDetect: true,
			}

			obj, err := LoadJoinConfigurationFromFile(cfgPath, opts)
			if rt.expectErr {
				if err == nil {

)

// applyPlanFlags holds the values for the common flags in `kubeadm upgrade apply` and `kubeadm upgrade plan`
type applyPlanFlags struct {
	kubeConfigPath            string
	cfgPath                   string
	featureGatesString        string
	allowExperimentalUpgrades bool
	allowRCUpgrades           bool
	printConfig               bool
	ignorePreflightErrors     []string

		t.Run(rt.name, func(t2 *testing.T) {
			cfgPath := filepath.Join(tmpdir, rt.name)
			err := os.WriteFile(cfgPath, []byte(rt.fileContents), 0644)
			if err != nil {
				t.Errorf("Couldn't create file: %v", err)
				return
			}

			opts := LoadOrDefaultConfigurationOptions{
				AllowExperimental: true,
				SkipCRIDetect:     true,
			}

			obj, err := LoadResetConfigurationFromFile(cfgPath, opts)
			if rt.expectErr {

func LoadInitConfigurationFromFile(cfgPath string, opts LoadOrDefaultConfigurationOptions) (*kubeadmapi.InitConfiguration, error) {
	klog.V(1).Infof("loading configuration from %q", cfgPath)

	b, err := os.ReadFile(cfgPath)
	if err != nil {
		return nil, errors.Wrapf(err, "unable to read config from %q ", cfgPath)
	}

	return BytesToInitConfiguration(b, opts.SkipCRIDetect)
}

}

// AddConfigFlag adds the --config flag to the given flagset
func AddConfigFlag(fs *pflag.FlagSet, cfgPath *string) {
	fs.StringVar(cfgPath, CfgPath, *cfgPath, "Path to a kubeadm configuration file.")
}

// AddIgnorePreflightErrorsFlag adds the --ignore-preflight-errors flag to the given flagset

		t.Run(rt.name, func(t2 *testing.T) {
			cfgPath := filepath.Join(tmpdir, rt.name)
			err := os.WriteFile(cfgPath, rt.fileContents, 0644)
			if err != nil {
				t.Errorf("Couldn't create file: %v", err)
				return
			}

			opts := LoadOrDefaultConfigurationOptions{
				SkipCRIDetect: true,
			}

			obj, err := LoadInitConfigurationFromFile(cfgPath, opts)
			if rt.expectErr {
				if err == nil {

		{
			name: "pre-flights errors from InitConfiguration only",
			flags: map[string]string{
				options.CfgPath: configFilePath,
			},
			validate: expectedInitIgnorePreflightErrors("c", "d"),
		},
		{
			name: "pre-flights errors from both CLI args and InitConfiguration",
			flags: map[string]string{
				options.CfgPath:               configFilePath,
				options.IgnorePreflightErrors: "a,b",
			},

	outputFlags.AddFlags(cmd)
	return cmd
}

type expirationFlags struct {
	cfgPath        string
	kubeconfigPath string
	cfg            kubeadmapiv1.ClusterConfiguration
}

func addExpirationFlags(cmd *cobra.Command, flags *expirationFlags) {
	options.AddConfigFlag(cmd.Flags(), &flags.cfgPath)
	options.AddCertificateDirFlag(cmd.Flags(), &flags.cfg.CertificatesDir)

			options.APIServerAdvertiseAddress,
			options.CfgPath,
			options.ControlPlane,
			options.NodeName,
			options.FileDiscovery,
			options.TokenDiscovery,
			options.TokenDiscoveryCAHash,
			options.TokenDiscoverySkipCAHash,
			options.TLSBootstrapToken,
			options.TokenStr,
			options.DryRun,
		}
	case "kubeconfig":
		flags = []string{
			options.CfgPath,
			options.ControlPlane,
			options.FileDiscovery,