fix k3s version metadata (#256)

cli/cmds/cluster/create.go

@@ -89,6 +89,12 @@ func createAction(config *CreateConfig) cli.ActionFunc {
 			return err
 		}
 
+		if strings.Contains(config.version, "+") {
+			orig := config.version
+			config.version = strings.Replace(config.version, "+", "-", -1)
+			logrus.Warnf("Invalid K3s docker reference version: '%s'. Using '%s' instead", orig, config.version)
+		}
+
 		if config.token != "" {
 			logrus.Infof("Creating cluster token secret")
 			obj := k3kcluster.TokenSecretObj(config.token, name, cmds.Namespace())

cli/cmds/cluster/create_flags.go

@@ -77,7 +77,7 @@ func NewCreateFlags(config *CreateConfig) []cli.Flag {
 		},
 		&cli.StringFlag{
 			Name:        "mode",
-			Usage:       "k3k mode type",
+			Usage:       "k3k mode type (shared, virtual)",
 			Destination: &config.mode,
 			Value:       "shared",
 			Action: func(ctx *cli.Context, value string) error {