provider/aws: Add support for alias record to Route53
This commit is contained in:
parent
bafabf17be
commit
3d665ddfcf
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@ -1,6 +1,7 @@
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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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"strings"
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@ -41,8 +42,9 @@ func resourceAwsRoute53Record() *schema.Resource {
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},
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"ttl": &schema.Schema{
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Type: schema.TypeInt,
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Required: true,
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Type: schema.TypeInt,
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Optional: true,
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ConflictsWith: []string{"alias"},
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},
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"weight": &schema.Schema{
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@ -56,10 +58,36 @@ func resourceAwsRoute53Record() *schema.Resource {
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ForceNew: true,
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},
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"alias": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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ConflictsWith: []string{"records", "ttl"},
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"zone_id": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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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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},
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"evaluate_target_health": &schema.Schema{
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Type: schema.TypeBool,
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Required: true,
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},
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},
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},
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Set: resourceAwsRoute53AliasRecordHash,
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},
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"records": &schema.Schema{
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Type: schema.TypeSet,
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Elem: &schema.Schema{Type: schema.TypeString},
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Required: true,
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Type: schema.TypeSet,
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ConflictsWith: []string{"alias"},
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Elem: &schema.Schema{Type: schema.TypeString},
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Optional: true,
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Set: func(v interface{}) int {
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return hashcode.String(v.(string))
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},
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@ -309,10 +337,6 @@ func resourceAwsRoute53RecordDelete(d *schema.ResourceData, meta interface{}) er
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}
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func resourceAwsRoute53RecordBuildSet(d *schema.ResourceData, zoneName string) (*route53.ResourceRecordSet, error) {
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recs := d.Get("records").(*schema.Set).List()
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records := expandResourceRecords(recs, d.Get("type").(string))
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// get expanded name
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en := expandRecordName(d.Get("name").(string), zoneName)
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@ -321,10 +345,33 @@ func resourceAwsRoute53RecordBuildSet(d *schema.ResourceData, zoneName string) (
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// not require the trailing ".", which it will itself, so we don't call FQDN
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// here.
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rec := &route53.ResourceRecordSet{
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Name: aws.String(en),
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Type: aws.String(d.Get("type").(string)),
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TTL: aws.Long(int64(d.Get("ttl").(int))),
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ResourceRecords: records,
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Name: aws.String(en),
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Type: aws.String(d.Get("type").(string)),
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}
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if v, ok := d.GetOk("ttl"); ok {
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rec.TTL = aws.Long(int64(v.(int)))
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}
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// Resource records
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if v, ok := d.GetOk("records"); ok {
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recs := v.(*schema.Set).List()
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rec.ResourceRecords = expandResourceRecords(recs, d.Get("type").(string))
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}
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// Alias record
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if v, ok := d.GetOk("alias"); ok {
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aliases := v.(*schema.Set).List()
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if len(aliases) > 1 {
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return nil, fmt.Errorf("You can only define a single alias target per record")
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}
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alias := aliases[0].(map[string]interface{})
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rec.AliasTarget = &route53.AliasTarget{
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DNSName: aws.String(alias["name"].(string)),
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EvaluateTargetHealth: aws.Boolean(alias["evaluate_target_health"].(bool)),
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HostedZoneID: aws.String(alias["zone_id"].(string)),
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}
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log.Printf("[DEBUG] Creating alias: %#v", alias)
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}
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if v, ok := d.GetOk("weight"); ok {
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@ -370,3 +417,13 @@ func expandRecordName(name, zone string) string {
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}
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return rn
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}
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func resourceAwsRoute53AliasRecordHash(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["name"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["zone_id"].(string)))
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buf.WriteString(fmt.Sprintf("%t-", m["evaluate_target_health"].(bool)))
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return hashcode.String(buf.String())
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}
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@ -139,6 +139,57 @@ func TestAccRoute53Record_weighted(t *testing.T) {
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})
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}
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func TestAccRoute53Record_alias(t *testing.T) {
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckRoute53RecordDestroy,
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Steps: []resource.TestStep{
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resource.TestStep{
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Config: testAccRoute53ElbAliasRecord,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckRoute53RecordExists("aws_route53_record.elb_alias"),
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),
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},
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resource.TestStep{
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Config: testAccRoute53AliasRecord,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckRoute53RecordExists("aws_route53_record.origin"),
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testAccCheckRoute53RecordExists("aws_route53_record.alias"),
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),
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},
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},
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})
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}
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func TestAccRoute53Record_weighted_alias(t *testing.T) {
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckRoute53RecordDestroy,
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Steps: []resource.TestStep{
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resource.TestStep{
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Config: testAccRoute53WeightedElbAliasRecord,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckRoute53RecordExists("aws_route53_record.elb_weighted_alias_live"),
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testAccCheckRoute53RecordExists("aws_route53_record.elb_weighted_alias_dev"),
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),
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},
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resource.TestStep{
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Config: testAccRoute53WeightedR53AliasRecord,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckRoute53RecordExists("aws_route53_record.green_origin"),
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testAccCheckRoute53RecordExists("aws_route53_record.r53_weighted_alias_live"),
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testAccCheckRoute53RecordExists("aws_route53_record.blue_origin"),
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testAccCheckRoute53RecordExists("aws_route53_record.r53_weighted_alias_dev"),
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),
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},
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},
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})
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}
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func testAccCheckRoute53RecordDestroy(s *terraform.State) error {
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conn := testAccProvider.Meta().(*AWSClient).r53conn
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for _, rs := range s.RootModule().Resources {
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@ -325,3 +376,171 @@ resource "aws_route53_record" "www-live" {
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records = ["dev.notexample.com"]
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}
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`
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const testAccRoute53ElbAliasRecord = `
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resource "aws_route53_zone" "main" {
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name = "notexample.com"
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}
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resource "aws_route53_record" "alias" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "A"
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alias {
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zone_id = "${aws_elb.main.zone_id}"
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name = "${aws_elb.main.dns_name}"
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evaluate_target_health = true
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}
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}
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resource "aws_elb" "main" {
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name = "foobar-terraform-elb"
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availability_zones = ["us-west-2a"]
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listener {
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instance_port = 80
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instance_protocol = "http"
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lb_port = 80
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lb_protocol = "http"
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}
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}
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`
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const testAccRoute53AliasRecord = `
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resource "aws_route53_zone" "main" {
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name = "notexample.com"
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}
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resource "aws_route53_record" "origin" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "origin"
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type = "A"
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ttl = 5
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records = ["127.0.0.1"]
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}
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resource "aws_route53_record" "alias" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "A"
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alias {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "${aws_route53_record.origin.name}.${aws_route53_zone.main.name}"
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evaluate_target_health = true
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}
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}
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`
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const testAccRoute53WeightedElbAliasRecord = `
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resource "aws_route53_zone" "main" {
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name = "notexample.com"
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}
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resource "aws_elb" "live" {
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name = "foobar-terraform-elb-live"
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availability_zones = ["us-west-2a"]
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listener {
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instance_port = 80
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instance_protocol = "http"
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lb_port = 80
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lb_protocol = "http"
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}
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}
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resource "aws_route53_record" "elb_weighted_alias_live" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "A"
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weight = 90
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set_identifier = "live"
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alias {
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zone_id = "${aws_elb.live.zone_id}"
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name = "${aws_elb.live.dns_name}"
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evaluate_target_health = true
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}
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}
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resource "aws_elb" "dev" {
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name = "foobar-terraform-elb-dev"
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availability_zones = ["us-west-2a"]
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listener {
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instance_port = 80
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instance_protocol = "http"
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lb_port = 80
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lb_protocol = "http"
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}
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}
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resource "aws_route53_record" "elb_weighted_alias_dev" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "A"
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weight = 10
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set_identifier = "dev"
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alias {
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zone_id = "${aws_elb.dev.zone_id}"
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name = "${aws_elb.dev.dns_name}"
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evaluate_target_health = true
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}
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}
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`
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const testAccRoute53WeightedR53AliasRecord = `
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resource "aws_route53_zone" "main" {
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name = "notexample.com"
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}
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resource "aws_route53_record" "blue_origin" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "blue-origin"
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type = "CNAME"
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ttl = 5
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records = ["v1.terraform.io"]
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}
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resource "aws_route53_record" "r53_weighted_alias_live" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "CNAME"
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weight = 90
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set_identifier = "blue"
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alias {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "${aws_route53_record.blue_origin.name}.${aws_route53_zone.main.name}"
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evaluate_target_health = false
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}
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}
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resource "aws_route53_record" "green_origin" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "green-origin"
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type = "CNAME"
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ttl = 5
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records = ["v2.terraform.io"]
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}
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resource "aws_route53_record" "r53_weighted_alias_dev" {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "www"
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type = "CNAME"
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weight = 10
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set_identifier = "green"
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alias {
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zone_id = "${aws_route53_zone.main.zone_id}"
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name = "${aws_route53_record.green_origin.name}.${aws_route53_zone.main.name}"
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evaluate_target_health = false
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}
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}
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`
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@ -49,6 +49,39 @@ resource "aws_route53_record" "www-live" {
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}
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```
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### Alias record
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See [related part of AWS Route53 Developer Guide](http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-choosing-alias-non-alias.html)
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to understand differences between alias and non-alias records.
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TTL for all alias records is [60 seconds](http://aws.amazon.com/route53/faqs/#dns_failover_do_i_need_to_adjust),
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you cannot change this, therefore `ttl` has to be ommitted in alias records.
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```
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resource "aws_elb" "main" {
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name = "foobar-terraform-elb"
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availability_zones = ["us-east-1c"]
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listener {
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instance_port = 80
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instance_protocol = "http"
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lb_port = 80
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lb_protocol = "http"
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}
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}
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resource "aws_route53_record" "www" {
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zone_id = "${aws_route53_zone.primary.zone_id}"
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name = "example.com"
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type = "A"
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alias {
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name = "${aws_elb.main.dns_name}"
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zone_id = "${aws_elb.main.zone_id}"
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evaluate_target_health = true
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}
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}
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```
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## Argument Reference
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The following arguments are supported:
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@ -61,6 +94,15 @@ The following arguments are supported:
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* `weight` - (Optional) The weight of weighted record (0-255).
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* `set_identifier` - (Optional) Unique identifier to differentiate weighted
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record from one another. Required for each weighted record.
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* `alias` - (Optional) An alias block. Alias record documented below.
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Exactly one of `records` or `alias` must be specified: this determines whether it's an alias record.
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Alias records support the following:
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* `name` - (Required) DNS domain name for a CloudFront distribution, S3 bucket, ELB, or another resource record set in this hosted zone.
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* `zone_id` - (Required) Hosted zone ID for a CloudFront distribution, S3 bucket, ELB, or Route 53 hosted zone. See [`resource_elb.zone_id`](/docs/providers/aws/r/elb.html#zone_id) for example.
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* `evaluate_target_health` - (Required) Set to `true` if you want Route 53 to determine whether to respond to DNS queries using this resource record set by checking the health of the resource record set. Some resources have special requirements, see [related part of documentation](http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-values.html#rrsets-values-alias-evaluate-target-health).
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## Attributes Reference
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