r/aws_globalaccelerator_custom_routing_endpoint_group: honor endpoint…

…_group_region set

internal/service/globalaccelerator/custom_routing_endpoint_group.go

@@ -90,7 +90,7 @@ func ResourceCustomRoutingEndpointGroup() *schema.Resource {
 				Optional:     true,
 				Computed:     true,
 				ForceNew:     true,
-				ValidateFunc: validation.StringLenBetween(1, 255),
+				ValidateFunc: verify.ValidRegionName,
 			},
 			"listener_arn": {
 				Type:         schema.TypeString,
@@ -105,15 +105,18 @@ func ResourceCustomRoutingEndpointGroup() *schema.Resource {
 func resourceCustomRoutingEndpointGroupCreate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
 	var diags diag.Diagnostics
 	conn := meta.(*conns.AWSClient).GlobalAcceleratorConn(ctx)
-	region := meta.(*conns.AWSClient).Region
 
 	input := &globalaccelerator.CreateCustomRoutingEndpointGroupInput{
 		DestinationConfigurations: expandCustomRoutingDestinationConfigurations(d.Get("destination_configuration").(*schema.Set).List()),
-		EndpointGroupRegion:       aws.String(region),
+		EndpointGroupRegion:       aws.String(meta.(*conns.AWSClient).Region),
 		IdempotencyToken:          aws.String(id.UniqueId()),
 		ListenerArn:               aws.String(d.Get("listener_arn").(string)),
 	}
 
+	if v, ok := d.GetOk("endpoint_group_region"); ok {
+		input.EndpointGroupRegion = aws.String(v.(string))
+	}
+
 	output, err := conn.CreateCustomRoutingEndpointGroupWithContext(ctx, input)
 
 	if err != nil {