Check legacy state if kubeconfig doesnt exist

util/util.go

@@ -103,3 +103,13 @@ func GetTagMajorVersion(tag string) string {
 	}
 	return strings.Join(splitTag[:2], ".")
 }
+
+func IsFileExists(filePath string) (bool, error) {
+	if _, err := os.Stat(filePath); err == nil {
+		return true, nil
+	} else if os.IsNotExist(err) {
+		return false, nil
+	} else {
+		return false, err
+	}
+}