provider/aws: Update EFS resource to read performance mode and creation_token

builtin/providers/aws/resource_aws_efs_file_system.go

@@ -27,6 +27,7 @@ func resourceAwsEfsFileSystem() *schema.Resource {
 			"creation_token": {
 				Type:         schema.TypeString,
 				Optional:     true,
+				Computed:     true,
 				ForceNew:     true,
 				ValidateFunc: validateMaxLength(64),
 			},
@@ -34,15 +35,15 @@ func resourceAwsEfsFileSystem() *schema.Resource {
 			"reference_name": {
 				Type:         schema.TypeString,
 				Optional:     true,
-				ForceNew:      true,
+				Computed:     true,
 				Deprecated:   "Please use attribute `creation_token' instead. This attribute might be removed in future releases.",
-				ConflictsWith: []string{"creation_token"},
 				ValidateFunc: validateReferenceName,
 			},
 
 			"performance_mode": {
 				Type:         schema.TypeString,
 				Optional:     true,
+				Computed:     true,
 				ForceNew:     true,
 				ValidateFunc: validatePerformanceModeType,
 			},
@@ -161,6 +162,22 @@ func resourceAwsEfsFileSystemRead(d *schema.ResourceData, meta interface{}) erro
 		return err
 	}
 
+	var fs *efs.FileSystemDescription
+	for _, f := range resp.FileSystems {
+		if d.Id() == *f.FileSystemId {
+			fs = f
+			break
+		}
+	}
+	if fs == nil {
+		log.Printf("[WARN] EFS (%s) not found, removing from state", d.Id())
+		d.SetId("")
+		return nil
+	}
+
+	d.Set("creation_token", fs.CreationToken)
+	d.Set("performance_mode", fs.PerformanceMode)
+
 	return nil
 }
 

builtin/providers/aws/resource_aws_efs_file_system_test.go

@@ -90,6 +90,10 @@ func TestAccAWSEFSFileSystem_basic(t *testing.T) {
 			resource.TestStep{
 				Config: testAccAWSEFSFileSystemConfig,
 				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr(
+						"aws_efs_file_system.foo",
+						"performance_mode",
+						"generalPurpose"),
 					testAccCheckEfsFileSystem(
 						"aws_efs_file_system.foo",
 					),
@@ -278,13 +282,13 @@ func testAccCheckEfsFileSystemPerformanceMode(resourceID string, expectedMode st
 
 const testAccAWSEFSFileSystemConfig = `
 resource "aws_efs_file_system" "foo" {
-	reference_name = "radeksimko"
+	creation_token = "radeksimko"
 }
 `
 
 const testAccAWSEFSFileSystemConfigWithTags = `
 resource "aws_efs_file_system" "foo-with-tags" {
-	reference_name = "yada_yada"
+	creation_token = "yada_yada"
 	tags {
 		Name = "foo-efs"
 		Another = "tag"