fix config nil error

pkg/utils/reflectutils/reflect.go

@@ -37,22 +37,23 @@ func In(value interface{}, container interface{}) bool {
 }
 
 func Override(left interface{}, right interface{}) {
-	if left == nil || right == nil {
+	if reflect.ValueOf(left).IsNil() || reflect.ValueOf(right).IsNil() {
 		return
 	}
 
 	if reflect.ValueOf(left).Type().Kind() != reflect.Ptr ||
-		reflect.ValueOf(right).Type().Kind() != reflect.Ptr {
+		reflect.ValueOf(right).Type().Kind() != reflect.Ptr ||
+		reflect.ValueOf(left).Kind() != reflect.ValueOf(right).Kind() {
 		return
 	}
 
-	old := reflect.ValueOf(left).Elem()
-	new := reflect.ValueOf(right).Elem()
+	oldVal := reflect.ValueOf(left).Elem()
+	newVal := reflect.ValueOf(right).Elem()
 
-	for i := 0; i < old.NumField(); i++ {
-		val := new.Field(i).Interface()
+	for i := 0; i < oldVal.NumField(); i++ {
+		val := newVal.Field(i).Interface()
 		if !reflect.DeepEqual(val, reflect.Zero(reflect.TypeOf(val)).Interface()) {
-			old.Field(i).Set(reflect.ValueOf(val))
+			oldVal.Field(i).Set(reflect.ValueOf(val))
 		}
 	}
 }