2015-04-26 03:53:21 +02:00
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package aws
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import (
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"fmt"
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"log"
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2015-08-29 18:40:18 +02:00
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"strings"
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2015-04-26 03:53:21 +02:00
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"time"
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2015-06-03 20:36:57 +02:00
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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/elasticache"
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2015-04-26 03:53:21 +02:00
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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 resourceAwsElasticacheSubnetGroup() *schema.Resource {
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return &schema.Resource{
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Create: resourceAwsElasticacheSubnetGroupCreate,
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Read: resourceAwsElasticacheSubnetGroupRead,
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2015-06-02 18:19:23 +02:00
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Update: resourceAwsElasticacheSubnetGroupUpdate,
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2015-04-26 03:53:21 +02:00
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Delete: resourceAwsElasticacheSubnetGroupDelete,
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Schema: map[string]*schema.Schema{
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"description": &schema.Schema{
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Type: schema.TypeString,
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2016-04-18 23:06:15 +02:00
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Optional: true,
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Default: "Managed by Terraform",
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2015-04-26 03:53:21 +02:00
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},
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"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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2015-08-29 18:40:18 +02:00
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StateFunc: func(val interface{}) string {
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// Elasticache normalizes subnet names to lowercase,
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// so we have to do this too or else we can end up
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// with non-converging diffs.
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return strings.ToLower(val.(string))
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},
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2015-04-26 03:53:21 +02:00
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},
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"subnet_ids": &schema.Schema{
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Type: schema.TypeSet,
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2015-06-28 09:08:50 +02:00
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Required: true,
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2015-04-26 03:53:21 +02:00
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Elem: &schema.Schema{Type: schema.TypeString},
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2016-02-08 00:51:26 +01:00
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Set: schema.HashString,
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2015-04-26 03:53:21 +02:00
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},
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},
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}
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}
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func resourceAwsElasticacheSubnetGroupCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).elasticacheconn
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// Get the group properties
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name := d.Get("name").(string)
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desc := d.Get("description").(string)
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subnetIdsSet := d.Get("subnet_ids").(*schema.Set)
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log.Printf("[DEBUG] Cache subnet group create: name: %s, description: %s", name, desc)
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subnetIds := expandStringList(subnetIdsSet.List())
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req := &elasticache.CreateCacheSubnetGroupInput{
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CacheSubnetGroupDescription: aws.String(desc),
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CacheSubnetGroupName: aws.String(name),
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2015-08-17 20:27:16 +02:00
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SubnetIds: subnetIds,
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2015-04-26 03:53:21 +02:00
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}
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_, err := conn.CreateCacheSubnetGroup(req)
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if err != nil {
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return fmt.Errorf("Error creating CacheSubnetGroup: %s", err)
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}
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// Assign the group name as the resource ID
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2015-08-29 18:40:18 +02:00
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// Elasticache always retains the name in lower case, so we have to
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// mimic that or else we won't be able to refresh a resource whose
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// name contained uppercase characters.
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d.SetId(strings.ToLower(name))
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2015-04-26 03:53:21 +02:00
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return nil
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}
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func resourceAwsElasticacheSubnetGroupRead(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).elasticacheconn
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req := &elasticache.DescribeCacheSubnetGroupsInput{
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CacheSubnetGroupName: aws.String(d.Get("name").(string)),
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}
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res, err := conn.DescribeCacheSubnetGroups(req)
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if err != nil {
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2016-06-08 16:00:13 +02:00
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if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "CacheSubnetGroupNotFoundFault" {
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// Update state to indicate the db subnet no longer exists.
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d.SetId("")
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return nil
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}
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2015-04-26 03:53:21 +02:00
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return err
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}
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if len(res.CacheSubnetGroups) == 0 {
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return fmt.Errorf("Error missing %v", d.Get("name"))
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}
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var group *elasticache.CacheSubnetGroup
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for _, g := range res.CacheSubnetGroups {
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log.Printf("[DEBUG] %v %v", g.CacheSubnetGroupName, d.Id())
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if *g.CacheSubnetGroupName == d.Id() {
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group = g
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}
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}
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if group == nil {
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return fmt.Errorf("Error retrieving cache subnet group: %v", res)
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}
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ids := make([]string, len(group.Subnets))
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for i, s := range group.Subnets {
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ids[i] = *s.SubnetIdentifier
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}
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d.Set("name", group.CacheSubnetGroupName)
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d.Set("description", group.CacheSubnetGroupDescription)
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d.Set("subnet_ids", ids)
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return nil
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}
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2015-06-02 18:19:23 +02:00
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func resourceAwsElasticacheSubnetGroupUpdate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).elasticacheconn
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if d.HasChange("subnet_ids") || d.HasChange("description") {
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var subnets []*string
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if v := d.Get("subnet_ids"); v != nil {
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for _, v := range v.(*schema.Set).List() {
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subnets = append(subnets, aws.String(v.(string)))
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}
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}
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log.Printf("[DEBUG] Updating ElastiCache Subnet Group")
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_, err := conn.ModifyCacheSubnetGroup(&elasticache.ModifyCacheSubnetGroupInput{
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CacheSubnetGroupName: aws.String(d.Get("name").(string)),
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CacheSubnetGroupDescription: aws.String(d.Get("description").(string)),
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2015-08-17 20:27:16 +02:00
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SubnetIds: subnets,
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2015-06-02 18:19:23 +02:00
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})
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if err != nil {
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return err
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}
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}
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return resourceAwsElasticacheSubnetGroupRead(d, meta)
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}
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2015-04-26 03:53:21 +02:00
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func resourceAwsElasticacheSubnetGroupDelete(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).elasticacheconn
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log.Printf("[DEBUG] Cache subnet group delete: %s", d.Id())
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2016-03-09 23:53:32 +01:00
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return resource.Retry(5*time.Minute, func() *resource.RetryError {
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2015-04-26 03:53:21 +02:00
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_, err := conn.DeleteCacheSubnetGroup(&elasticache.DeleteCacheSubnetGroupInput{
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CacheSubnetGroupName: aws.String(d.Id()),
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})
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if err != nil {
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2015-05-20 13:21:23 +02:00
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apierr, ok := err.(awserr.Error)
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2015-04-26 03:53:21 +02:00
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if !ok {
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2016-03-09 23:53:32 +01:00
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return resource.RetryableError(err)
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2015-04-26 03:53:21 +02:00
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}
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2016-02-24 16:48:32 +01:00
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log.Printf("[DEBUG] APIError.Code: %v", apierr.Code())
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2015-05-20 13:21:23 +02:00
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switch apierr.Code() {
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2015-04-26 03:53:21 +02:00
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case "DependencyViolation":
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// If it is a dependency violation, we want to retry
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2016-03-09 23:53:32 +01:00
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return resource.RetryableError(err)
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2015-04-26 03:53:21 +02:00
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default:
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2016-03-09 23:53:32 +01:00
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return resource.NonRetryableError(err)
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2015-04-26 03:53:21 +02:00
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}
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}
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return nil
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})
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}
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