From 08066b644a051ea8bd79c09fc1230f3dce6470ac Mon Sep 17 00:00:00 2001
From: Brian Flad <bflad417@gmail.com>
Date: Thu, 30 Jul 2020 12:04:25 -0400
Subject: [PATCH] data-source/aws_availability_zones: Fix group_names attribute
 to be Computed instead of Optional

Reference: https://github.com/terraform-providers/terraform-provider-aws/issues/14405

Output from acceptance testing:

```
--- PASS: TestAccAWSAvailabilityZones_Filter (7.67s)
--- PASS: TestAccAWSAvailabilityZones_basic (7.83s)
--- PASS: TestAccAWSAvailabilityZones_AllAvailabilityZones (7.88s)
--- PASS: TestAccAWSAvailabilityZones_stateFilter (7.88s)
--- PASS: TestAccAWSAvailabilityZones_ExcludeNames (9.35s)
--- PASS: TestAccAWSAvailabilityZones_ExcludeZoneIds (9.41s)
```
---
 aws/data_source_aws_availability_zones.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aws/data_source_aws_availability_zones.go b/aws/data_source_aws_availability_zones.go
index 6de4daaba6a..87e9bc356e9 100644
--- a/aws/data_source_aws_availability_zones.go
+++ b/aws/data_source_aws_availability_zones.go
@@ -34,7 +34,7 @@ func dataSourceAwsAvailabilityZones() *schema.Resource {
 			"filter": ec2CustomFiltersSchema(),
 			"group_names": {
 				Type:     schema.TypeSet,
-				Optional: true,
+				Computed: true,
 				Elem:     &schema.Schema{Type: schema.TypeString},
 			},
 			"names": {