From 5fa24a0128ca91f1c54bfba9eebb56d434ac8559 Mon Sep 17 00:00:00 2001
From: James Bardin <j.bardin@gmail.com>
Date: Tue, 21 Nov 2017 17:24:26 -0500
Subject: [PATCH] output warning flag

---
 terraform/eval_output.go | 4 ++--
 terraform/features.go    | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/terraform/eval_output.go b/terraform/eval_output.go
index cc83938eb..a8346276f 100644
--- a/terraform/eval_output.go
+++ b/terraform/eval_output.go
@@ -68,9 +68,9 @@ func (n *EvalWriteOutput) Eval(ctx EvalContext) (interface{}, error) {
 
 	// handling the interpolation error
 	if err != nil {
-		if n.ContinueOnErr {
+		if n.ContinueOnErr || flagWarnOutputErrors {
 			log.Printf("[ERROR] Output interpolation %q failed: %s", n.Name, err)
-			// if we're continueing, make sure the output is included, and
+			// if we're continuing, make sure the output is included, and
 			// marked as unknown
 			mod.Outputs[n.Name] = &OutputState{
 				Type:  "string",
diff --git a/terraform/features.go b/terraform/features.go
index 752076806..97c77bdbd 100644
--- a/terraform/features.go
+++ b/terraform/features.go
@@ -1,3 +1,7 @@
 package terraform
 
+import "os"
+
 // This file holds feature flags for the next release
+
+var flagWarnOutputErrors = os.Getenv("TF_WARN_OUTPUT_ERRORS") != ""