Merge pull request #11369 from hashicorp/f-add-suppress-func-db-instance

provider/aws: Add diff suppress function for aws_db_instance

builtin/providers/aws/diff_suppress_funcs.go

@@ -1,6 +1,9 @@
 package aws
 
 import (
+	"log"
+	"strings"
+
 	"github.com/hashicorp/terraform/helper/schema"
 	"github.com/jen20/awspolicyequivalence"
 )
@@ -13,3 +16,18 @@ func suppressEquivalentAwsPolicyDiffs(k, old, new string, d *schema.ResourceData
 
 	return equivalent
 }
+
+// Suppresses minor version changes to the db_instance engine_version attribute
+func suppressAwsDbEngineVersionDiffs(k, old, new string, d *schema.ResourceData) bool {
+	if d.Get("auto_minor_version_upgrade").(bool) {
+		// If we're set to auto upgrade minor versions
+		// ignore a minor version diff between versions
+		if strings.HasPrefix(old, new) {
+			log.Printf("[DEBUG] Ignoring minor version diff")
+			return true
+		}
+	}
+
+	// Throw a diff by default
+	return false
+}

builtin/providers/aws/resource_aws_db_instance.go

@@ -66,6 +66,7 @@ func resourceAwsDbInstance() *schema.Resource {
 				Type:             schema.TypeString,
 				Optional:         true,
 				Computed:         true,
+				DiffSuppressFunc: suppressAwsDbEngineVersionDiffs,
 			},
 
 			"character_set_name": {

builtin/providers/aws/resource_aws_db_instance_test.go

@@ -27,7 +27,7 @@ func TestAccAWSDBInstance_basic(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccAWSDBInstanceConfig,
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -65,7 +65,7 @@ func TestAccAWSDBInstance_kmsKey(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: config,
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -115,7 +115,7 @@ func TestAccAWSDBInstance_optionGroup(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccAWSDBInstanceConfigWithOptionGroup,
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -136,7 +136,7 @@ func TestAccAWSDBInstanceReplica(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccReplicaInstanceConfig(rand.New(rand.NewSource(time.Now().UnixNano())).Int()),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &s),
@@ -158,7 +158,7 @@ func TestAccAWSDBInstanceSnapshot(t *testing.T) {
 		// created, and subequently deletes it
 		CheckDestroy: testAccCheckAWSDBInstanceSnapshot,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig(),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.snapshot", &snap),
@@ -176,7 +176,7 @@ func TestAccAWSDBInstanceNoSnapshot(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceNoSnapshot,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccNoSnapshotInstanceConfig(),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.no_snapshot", &nosnap),
@@ -195,7 +195,7 @@ func TestAccAWSDBInstance_enhancedMonitoring(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceNoSnapshot,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig_enhancedMonitoring(rName),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.enhanced_monitoring", &dbInstance),
@@ -220,7 +220,7 @@ func TestAccAWS_separate_DBInstance_iops_update(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig_iopsUpdate(rName, 1000),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -228,7 +228,7 @@ func TestAccAWS_separate_DBInstance_iops_update(t *testing.T) {
 				),
 			},
 
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig_iopsUpdate(rName, 2000),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -249,7 +249,7 @@ func TestAccAWSDBInstance_portUpdate(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig_mysqlPort(rName),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -258,7 +258,7 @@ func TestAccAWSDBInstance_portUpdate(t *testing.T) {
 				),
 			},
 
-			resource.TestStep{
+			{
 				Config: testAccSnapshotInstanceConfig_updateMysqlPort(rName),
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
@@ -278,7 +278,7 @@ func TestAccAWSDBInstance_MSSQL_TZ(t *testing.T) {
 		Providers:    testAccProviders,
 		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
 		Steps: []resource.TestStep{
-			resource.TestStep{
+			{
 				Config: testAccAWSDBMSSQL_timezone,
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.mssql", &v),
@@ -290,7 +290,7 @@ func TestAccAWSDBInstance_MSSQL_TZ(t *testing.T) {
 				),
 			},
 
-			resource.TestStep{
+			{
 				Config: testAccAWSDBMSSQL_timezone_AKST,
 				Check: resource.ComposeTestCheckFunc(
 					testAccCheckAWSDBInstanceExists("aws_db_instance.mssql", &v),
@@ -305,6 +305,24 @@ func TestAccAWSDBInstance_MSSQL_TZ(t *testing.T) {
 	})
 }
 
+func TestAccAWSDBInstance_MinorVersion(t *testing.T) {
+	var v rds.DBInstance
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckAWSDBInstanceDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccAWSDBInstanceConfigAutoMinorVersion,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSDBInstanceExists("aws_db_instance.bar", &v),
+				),
+			},
+		},
+	})
+}
+
 func testAccCheckAWSDBInstanceDestroy(s *terraform.State) error {
 	conn := testAccProvider.Meta().(*AWSClient).rdsconn
 
@@ -1113,3 +1131,16 @@ resource "aws_security_group_rule" "rds-mssql-1" {
   security_group_id = "${aws_security_group.rds-mssql.id}"
 }
 `
+
+var testAccAWSDBInstanceConfigAutoMinorVersion = fmt.Sprintf(`
+resource "aws_db_instance" "bar" {
+  identifier = "foobarbaz-test-terraform-%d"
+	allocated_storage = 10
+	engine = "MySQL"
+	engine_version = "5.6"
+	instance_class = "db.t1.micro"
+	name = "baz"
+	password = "barbarbarbar"
+	username = "foo"
+}
+`, acctest.RandInt())