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resource/aws_rds_cluster_parameter_group and resource/aws_db_parameter_group: Restore ability to change parameter values #12112

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merged 1 commit into from
Aug 19, 2020
Merged

resource/aws_rds_cluster_parameter_group and resource/aws_db_parameter_group: Restore ability to change parameter values #12112

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19 changes: 18 additions & 1 deletion aws/resource_aws_db_parameter_group.go
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Original file line number Diff line number Diff line change
Expand Up @@ -277,8 +277,25 @@ func resourceAwsDbParameterGroupUpdate(d *schema.ResourceData, meta interface{})
}
}

toRemove := map[string]*rds.Parameter{}

for _, p := range expandParameters(os.List()) {
if p.ParameterName != nil {
toRemove[*p.ParameterName] = p
}
}

for _, p := range expandParameters(ns.List()) {
if p.ParameterName != nil {
delete(toRemove, *p.ParameterName)
}
}
Comment on lines +282 to +292
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@anGie44 anGie44 Aug 19, 2020 •
edited
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nice 👍 I forgot since technically we're expanding user input here (same in the rds cluster resource) and the "name" field within the parameter block is Required, we shouldn't ever come across a nil (as well i see the expandParameters actually skips for cases when "name" is an empty string) but i prefer erring on the side of caution when it comes to pointers.


// Reset parameters that have been removed
resetParameters := expandParameters(os.Difference(ns).List())
var resetParameters []*rds.Parameter
for _, v := range toRemove {
resetParameters = append(resetParameters, v)
}
if len(resetParameters) > 0 {
maxParams := 20
for resetParameters != nil {
Expand Down
107 changes: 107 additions & 0 deletions aws/resource_aws_db_parameter_group_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,65 @@ func TestAccAWSDBParameterGroup_MatchDefault(t *testing.T) {
})
}

func TestAccAWSDBParameterGroup_updateParameters(t *testing.T) {
var v rds.DBParameterGroup
resourceName := "aws_db_parameter_group.test"
groupName := fmt.Sprintf("parameter-group-test-terraform-%d", acctest.RandInt())

resource.ParallelTest(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
CheckDestroy: testAccCheckAWSDBParameterGroupDestroy,
Steps: []resource.TestStep{
{
Config: testAccAWSDBParameterGroupUpdateParametersInitialConfig(groupName),
Check: resource.ComposeTestCheckFunc(
testAccCheckAWSDBParameterGroupExists(resourceName, &v),
testAccCheckAWSDBParameterGroupAttributes(&v, groupName),
resource.TestCheckResourceAttr(resourceName, "name", groupName),
resource.TestCheckResourceAttr(resourceName, "family", "mysql5.6"),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_results",
"value": "utf8",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_server",
"value": "utf8",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_client",
"value": "utf8",
}),
),
},
{
ResourceName: resourceName,
ImportState: true,
ImportStateVerify: true,
},
{
Config: testAccAWSDBParameterGroupUpdateParametersUpdatedConfig(groupName),
Check: resource.ComposeTestCheckFunc(
testAccCheckAWSDBParameterGroupExists(resourceName, &v),
testAccCheckAWSDBParameterGroupAttributes(&v, groupName),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_results",
"value": "ascii",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_server",
"value": "ascii",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_client",
"value": "utf8",
}),
),
},
},
})
}

func testAccCheckAWSDbParamaterGroupDisappears(v *rds.DBParameterGroup) resource.TestCheckFunc {
return func(s *terraform.State) error {
conn := testAccProvider.Meta().(*AWSClient).rdsconn
Expand Down Expand Up @@ -1372,6 +1431,54 @@ resource "aws_db_parameter_group" "test" {
`, n)
}

func testAccAWSDBParameterGroupUpdateParametersInitialConfig(n string) string {
return fmt.Sprintf(`
resource "aws_db_parameter_group" "test" {
name = "%s"
family = "mysql5.6"

parameter {
name = "character_set_server"
value = "utf8"
}

parameter {
name = "character_set_client"
value = "utf8"
}

parameter {
name = "character_set_results"
value = "utf8"
}
}
`, n)
}

func testAccAWSDBParameterGroupUpdateParametersUpdatedConfig(n string) string {
return fmt.Sprintf(`
resource "aws_db_parameter_group" "test" {
name = "%s"
family = "mysql5.6"

parameter {
name = "character_set_server"
value = "ascii"
}

parameter {
name = "character_set_client"
value = "utf8"
}

parameter {
name = "character_set_results"
value = "ascii"
}
}
`, n)
}

const testAccDBParameterGroupConfig_namePrefix = `
resource "aws_db_parameter_group" "test" {
name_prefix = "tf-test-"
Expand Down
29 changes: 23 additions & 6 deletions aws/resource_aws_rds_cluster_parameter_group.go
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Original file line number Diff line number Diff line change
Expand Up @@ -221,16 +221,33 @@ func resourceAwsRDSClusterParameterGroupUpdate(d *schema.ResourceData, meta inte
}
}

toRemove := map[string]*rds.Parameter{}

for _, p := range expandParameters(os.List()) {
if p.ParameterName != nil {
toRemove[*p.ParameterName] = p
}
}

for _, p := range expandParameters(ns.List()) {
if p.ParameterName != nil {
delete(toRemove, *p.ParameterName)
}
}

// Reset parameters that have been removed
parameters = expandParameters(os.Difference(ns).List())
if len(parameters) > 0 {
for parameters != nil {
var resetParameters []*rds.Parameter
for _, v := range toRemove {
resetParameters = append(resetParameters, v)
}
if len(resetParameters) > 0 {
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The changes from here on down in this file just rename the parameters variable to resetParameters in order to avoid conflicting with the previously defined parameters variable and make this code look more like the code in the resource_aws_db_parameter_group.go file.

for resetParameters != nil {
parameterGroupName := d.Get("name").(string)
var paramsToReset []*rds.Parameter
if len(parameters) <= rdsClusterParameterGroupMaxParamsBulkEdit {
paramsToReset, parameters = parameters[:], nil
if len(resetParameters) <= rdsClusterParameterGroupMaxParamsBulkEdit {
paramsToReset, resetParameters = resetParameters[:], nil
} else {
paramsToReset, parameters = parameters[:rdsClusterParameterGroupMaxParamsBulkEdit], parameters[rdsClusterParameterGroupMaxParamsBulkEdit:]
paramsToReset, resetParameters = resetParameters[:rdsClusterParameterGroupMaxParamsBulkEdit], resetParameters[rdsClusterParameterGroupMaxParamsBulkEdit:]
}

resetOpts := rds.ResetDBClusterParameterGroupInput{
Expand Down
107 changes: 107 additions & 0 deletions aws/resource_aws_rds_cluster_parameter_group_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -376,6 +376,65 @@ func TestAccAWSDBClusterParameterGroup_only(t *testing.T) {
})
}

func TestAccAWSDBClusterParameterGroup_updateParameters(t *testing.T) {
var v rds.DBClusterParameterGroup
resourceName := "aws_rds_cluster_parameter_group.test"
groupName := fmt.Sprintf("cluster-parameter-group-test-tf-%d", acctest.RandInt())

resource.ParallelTest(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
CheckDestroy: testAccCheckAWSDBClusterParameterGroupDestroy,
Steps: []resource.TestStep{
{
Config: testAccAWSDBClusterParameterGroupUpdateParametersInitialConfig(groupName),
Check: resource.ComposeTestCheckFunc(
testAccCheckAWSDBClusterParameterGroupExists(resourceName, &v),
testAccCheckAWSDBClusterParameterGroupAttributes(&v, groupName),
resource.TestCheckResourceAttr(resourceName, "name", groupName),
resource.TestCheckResourceAttr(resourceName, "family", "aurora5.6"),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_results",
"value": "utf8",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_server",
"value": "utf8",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_client",
"value": "utf8",
}),
),
},
{
ResourceName: resourceName,
ImportState: true,
ImportStateVerify: true,
},
{
Config: testAccAWSDBClusterParameterGroupUpdateParametersUpdatedConfig(groupName),
Check: resource.ComposeTestCheckFunc(
testAccCheckAWSDBClusterParameterGroupExists(resourceName, &v),
testAccCheckAWSDBClusterParameterGroupAttributes(&v, groupName),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_results",
"value": "ascii",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_server",
"value": "ascii",
}),
tfawsresource.TestCheckTypeSetElemNestedAttrs(resourceName, "parameter.*", map[string]string{
"name": "character_set_client",
"value": "utf8",
}),
),
},
},
})
}

func testAccCheckAWSDBClusterParameterGroupDestroy(s *terraform.State) error {
conn := testAccProvider.Meta().(*AWSClient).rdsconn

Expand Down Expand Up @@ -622,6 +681,54 @@ resource "aws_rds_cluster_parameter_group" "test" {
`, name)
}

func testAccAWSDBClusterParameterGroupUpdateParametersInitialConfig(name string) string {
return fmt.Sprintf(`
resource "aws_rds_cluster_parameter_group" "test" {
name = "%s"
family = "aurora5.6"

parameter {
name = "character_set_server"
value = "utf8"
}

parameter {
name = "character_set_client"
value = "utf8"
}

parameter {
name = "character_set_results"
value = "utf8"
}
}
`, name)
}

func testAccAWSDBClusterParameterGroupUpdateParametersUpdatedConfig(name string) string {
return fmt.Sprintf(`
resource "aws_rds_cluster_parameter_group" "test" {
name = "%s"
family = "aurora5.6"

parameter {
name = "character_set_server"
value = "ascii"
}

parameter {
name = "character_set_client"
value = "utf8"
}

parameter {
name = "character_set_results"
value = "ascii"
}
}
`, name)
}

const testAccAWSDBClusterParameterGroupConfig_namePrefix = `
resource "aws_rds_cluster_parameter_group" "test" {
name_prefix = "tf-test-"
Expand Down