terraform/builtin/providers/aws/resource_aws_db_option_grou...

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package aws
import (
"bytes"
"fmt"
"log"
"regexp"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/rds"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsDbOptionGroup() *schema.Resource {
return &schema.Resource{
Create: resourceAwsDbOptionGroupCreate,
Read: resourceAwsDbOptionGroupRead,
Update: resourceAwsDbOptionGroupUpdate,
Delete: resourceAwsDbOptionGroupDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"arn": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"name": &schema.Schema{
Type: schema.TypeString,
ForceNew: true,
Required: true,
ValidateFunc: validateDbOptionGroupName,
},
"engine_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"major_engine_version": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"option_group_description": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"option": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"option_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"option_settings": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"value": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
},
},
},
"port": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
},
"db_security_group_memberships": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
},
"vpc_security_group_memberships": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
},
},
},
Set: resourceAwsDbOptionHash,
},
"tags": tagsSchema(),
},
}
}
func resourceAwsDbOptionGroupCreate(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
tags := tagsFromMapRDS(d.Get("tags").(map[string]interface{}))
createOpts := &rds.CreateOptionGroupInput{
EngineName: aws.String(d.Get("engine_name").(string)),
MajorEngineVersion: aws.String(d.Get("major_engine_version").(string)),
OptionGroupDescription: aws.String(d.Get("option_group_description").(string)),
OptionGroupName: aws.String(d.Get("name").(string)),
Tags: tags,
}
log.Printf("[DEBUG] Create DB Option Group: %#v", createOpts)
_, err := rdsconn.CreateOptionGroup(createOpts)
if err != nil {
return fmt.Errorf("Error creating DB Option Group: %s", err)
}
d.SetId(d.Get("name").(string))
log.Printf("[INFO] DB Option Group ID: %s", d.Id())
return resourceAwsDbOptionGroupUpdate(d, meta)
}
func resourceAwsDbOptionGroupRead(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
params := &rds.DescribeOptionGroupsInput{
OptionGroupName: aws.String(d.Id()),
}
log.Printf("[DEBUG] Describe DB Option Group: %#v", params)
options, err := rdsconn.DescribeOptionGroups(params)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
if "OptionGroupNotFoundFault" == awsErr.Code() {
d.SetId("")
log.Printf("[DEBUG] DB Option Group (%s) not found", d.Get("name").(string))
return nil
}
}
return fmt.Errorf("Error Describing DB Option Group: %s", err)
}
var option *rds.OptionGroup
for _, ogl := range options.OptionGroupsList {
if *ogl.OptionGroupName == d.Id() {
option = ogl
break
}
}
if option == nil {
return fmt.Errorf("Unable to find Option Group: %#v", options.OptionGroupsList)
}
d.Set("name", option.OptionGroupName)
d.Set("major_engine_version", option.MajorEngineVersion)
d.Set("engine_name", option.EngineName)
d.Set("option_group_description", option.OptionGroupDescription)
if len(option.Options) != 0 {
d.Set("option", flattenOptions(option.Options))
}
optionGroup := options.OptionGroupsList[0]
arn, err := buildRDSOptionGroupARN(d.Id(), meta.(*AWSClient).accountid, meta.(*AWSClient).region)
if err != nil {
name := "<empty>"
if optionGroup.OptionGroupName != nil && *optionGroup.OptionGroupName != "" {
name = *optionGroup.OptionGroupName
}
log.Printf("[DEBUG] Error building ARN for DB Option Group, not setting Tags for Option Group %s", name)
} else {
d.Set("arn", arn)
resp, err := rdsconn.ListTagsForResource(&rds.ListTagsForResourceInput{
ResourceName: aws.String(arn),
})
if err != nil {
log.Printf("[DEBUG] Error retrieving tags for ARN: %s", arn)
}
var dt []*rds.Tag
if len(resp.TagList) > 0 {
dt = resp.TagList
}
d.Set("tags", tagsToMapRDS(dt))
}
return nil
}
func optionInList(optionName string, list []*string) bool {
for _, opt := range list {
if *opt == optionName {
return true
}
}
return false
}
func resourceAwsDbOptionGroupUpdate(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
if d.HasChange("option") {
o, n := d.GetChange("option")
if o == nil {
o = new(schema.Set)
}
if n == nil {
n = new(schema.Set)
}
os := o.(*schema.Set)
ns := n.(*schema.Set)
addOptions, addErr := expandOptionConfiguration(ns.Difference(os).List())
if addErr != nil {
return addErr
}
addingOptionNames, err := flattenOptionNames(ns.Difference(os).List())
if err != nil {
return err
}
removeOptions := []*string{}
opts, err := flattenOptionNames(os.Difference(ns).List())
if err != nil {
return err
}
for _, optionName := range opts {
if optionInList(*optionName, addingOptionNames) {
continue
}
removeOptions = append(removeOptions, optionName)
}
modifyOpts := &rds.ModifyOptionGroupInput{
OptionGroupName: aws.String(d.Id()),
ApplyImmediately: aws.Bool(true),
}
if len(addOptions) > 0 {
modifyOpts.OptionsToInclude = addOptions
}
if len(removeOptions) > 0 {
modifyOpts.OptionsToRemove = removeOptions
}
log.Printf("[DEBUG] Modify DB Option Group: %s", modifyOpts)
_, err = rdsconn.ModifyOptionGroup(modifyOpts)
if err != nil {
return fmt.Errorf("Error modifying DB Option Group: %s", err)
}
d.SetPartial("option")
}
if arn, err := buildRDSOptionGroupARN(d.Id(), meta.(*AWSClient).accountid, meta.(*AWSClient).region); err == nil {
if err := setTagsRDS(rdsconn, d, arn); err != nil {
return err
} else {
d.SetPartial("tags")
}
}
return resourceAwsDbOptionGroupRead(d, meta)
}
func resourceAwsDbOptionGroupDelete(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
deleteOpts := &rds.DeleteOptionGroupInput{
OptionGroupName: aws.String(d.Id()),
}
log.Printf("[DEBUG] Delete DB Option Group: %#v", deleteOpts)
ret := resource.Retry(1*time.Minute, func() *resource.RetryError {
_, err := rdsconn.DeleteOptionGroup(deleteOpts)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
if awsErr.Code() == "InvalidOptionGroupStateFault" {
log.Printf("[DEBUG] AWS believes the RDS Option Group is still in use, retrying")
return resource.RetryableError(awsErr)
}
}
return resource.NonRetryableError(err)
}
return nil
})
if ret != nil {
return fmt.Errorf("Error Deleting DB Option Group: %s", ret)
}
return nil
}
func flattenOptionNames(configured []interface{}) ([]*string, error) {
var optionNames []*string
for _, pRaw := range configured {
data := pRaw.(map[string]interface{})
optionNames = append(optionNames, aws.String(data["option_name"].(string)))
}
return optionNames, nil
}
func resourceAwsDbOptionHash(v interface{}) int {
var buf bytes.Buffer
m := v.(map[string]interface{})
buf.WriteString(fmt.Sprintf("%s-", m["option_name"].(string)))
if _, ok := m["port"]; ok {
buf.WriteString(fmt.Sprintf("%d-", m["port"].(int)))
}
for _, oRaw := range m["option_settings"].(*schema.Set).List() {
o := oRaw.(map[string]interface{})
buf.WriteString(fmt.Sprintf("%s-", o["name"].(string)))
buf.WriteString(fmt.Sprintf("%s-", o["value"].(string)))
}
for _, vpcRaw := range m["vpc_security_group_memberships"].(*schema.Set).List() {
buf.WriteString(fmt.Sprintf("%s-", vpcRaw.(string)))
}
for _, sgRaw := range m["db_security_group_memberships"].(*schema.Set).List() {
buf.WriteString(fmt.Sprintf("%s-", sgRaw.(string)))
}
return hashcode.String(buf.String())
}
func buildRDSOptionGroupARN(identifier, accountid, region string) (string, error) {
if accountid == "" {
2016-05-09 01:33:48 +02:00
return "", fmt.Errorf("Unable to construct RDS Option Group ARN because of missing AWS Account ID")
}
arn := fmt.Sprintf("arn:aws:rds:%s:%s:og:%s", region, accountid, identifier)
return arn, nil
}
func validateDbOptionGroupName(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
if !regexp.MustCompile(`^[a-z]`).MatchString(value) {
errors = append(errors, fmt.Errorf(
"first character of %q must be a letter", k))
}
if !regexp.MustCompile(`^[0-9A-Za-z-]+$`).MatchString(value) {
errors = append(errors, fmt.Errorf(
"only alphanumeric characters and hyphens allowed in %q", k))
}
if regexp.MustCompile(`--`).MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q cannot contain two consecutive hyphens", k))
}
if regexp.MustCompile(`-$`).MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q cannot end with a hyphen", k))
}
if len(value) > 255 {
errors = append(errors, fmt.Errorf(
"%q cannot be greater than 255 characters", k))
}
return
}