From 8dc131550f2f0ceb4e75461f3dc6af26ada35607 Mon Sep 17 00:00:00 2001
From: Ludovico Magnocavallo <ludomagno@google.com>
Date: Wed, 4 Nov 2020 12:06:01 +0100
Subject: [PATCH] fix variable validation in project module to allow for null
 values

---
 modules/project/variables.tf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/project/variables.tf b/modules/project/variables.tf
index 8972166a..75150cc1 100644
--- a/modules/project/variables.tf
+++ b/modules/project/variables.tf
@@ -84,7 +84,7 @@ variable "parent" {
   type        = string
   default     = null
   validation {
-    condition     = can(regex("(organizations|folders)/[0-9]+", var.parent))
+    condition     = var.parent == null || can(regex("(organizations|folders)/[0-9]+", var.parent))
     error_message = "Parent must be of the form folders/folder_id or organizations/organization_id."
   }
 }