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