From e94fcdb9df41abafc434ef287cdddb421ec8278c Mon Sep 17 00:00:00 2001
From: clint shryock <clint@ctshryock.com>
Date: Fri, 13 Nov 2015 10:46:27 -0600
Subject: [PATCH] add validation for cookie stickiness

---
 .../aws/resource_aws_lb_cookie_stickiness_policy.go       | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/builtin/providers/aws/resource_aws_lb_cookie_stickiness_policy.go b/builtin/providers/aws/resource_aws_lb_cookie_stickiness_policy.go
index a5189fdc2..ea2215b6a 100644
--- a/builtin/providers/aws/resource_aws_lb_cookie_stickiness_policy.go
+++ b/builtin/providers/aws/resource_aws_lb_cookie_stickiness_policy.go
@@ -42,6 +42,14 @@ func resourceAwsLBCookieStickinessPolicy() *schema.Resource {
 				Type:     schema.TypeInt,
 				Optional: true,
 				ForceNew: true,
+				ValidateFunc: func(v interface{}, k string) (ws []string, es []error) {
+					value := v.(int)
+					if value <= 0 {
+						es = append(es, fmt.Errorf(
+							"LB Cookie Expiration Period must be greater than zero if specified"))
+					}
+					return
+				},
 			},
 		},
 	}