aws-cdk.aws-route53-targets 1.204.0
The CDK Construct Library for AWS Route53 Alias Targets
License: Apache-2.0
Requires Python: ~=3.7

# Route53 Alias Record Targets for the CDK Route53 Library

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> AWS CDK v1 has reached End-of-Support on 2023-06-01.
> This package is no longer being updated, and users should migrate to AWS CDK v2.
>
> For more information on how to migrate, see the [*Migrating to AWS CDK v2* guide](https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html).

---
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This library contains Route53 Alias Record targets for:

* API Gateway custom domains

  ```python
  import aws_cdk.aws_apigateway as apigw

  # zone: route53.HostedZone
  # rest_api: apigw.LambdaRestApi


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.ApiGateway(rest_api))
  )
  ```
* API Gateway V2 custom domains

  ```python
  import aws_cdk.aws_apigatewayv2 as apigwv2

  # zone: route53.HostedZone
  # domain_name: apigwv2.DomainName


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.ApiGatewayv2DomainProperties(domain_name.regional_domain_name, domain_name.regional_hosted_zone_id))
  )
  ```
* CloudFront distributions

  ```python
  import aws_cdk.aws_cloudfront as cloudfront

  # zone: route53.HostedZone
  # distribution: cloudfront.CloudFrontWebDistribution


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.CloudFrontTarget(distribution))
  )
  ```
* ELBv2 load balancers

  ```python
  import aws_cdk.aws_elasticloadbalancingv2 as elbv2

  # zone: route53.HostedZone
  # lb: elbv2.ApplicationLoadBalancer


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.LoadBalancerTarget(lb))
  )
  ```
* Classic load balancers

  ```python
  import aws_cdk.aws_elasticloadbalancing as elb

  # zone: route53.HostedZone
  # lb: elb.LoadBalancer


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.ClassicLoadBalancerTarget(lb))
  )
  ```

**Important:** Based on [AWS documentation](https://aws.amazon.com/de/premiumsupport/knowledge-center/alias-resource-record-set-route53-cli/), all alias record in Route 53 that points to a Elastic Load Balancer will always include *dualstack* for the DNSName to resolve IPv4/IPv6 addresses (without *dualstack* IPv6 will not resolve).

For example, if the Amazon-provided DNS for the load balancer is `ALB-xxxxxxx.us-west-2.elb.amazonaws.com`, CDK will create alias target in Route 53 will be `dualstack.ALB-xxxxxxx.us-west-2.elb.amazonaws.com`.

* GlobalAccelerator

  ```python
  import aws_cdk.aws_globalaccelerator as globalaccelerator

  # zone: route53.HostedZone
  # accelerator: globalaccelerator.Accelerator


  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.GlobalAcceleratorTarget(accelerator))
  )
  ```

**Important:** If you use GlobalAcceleratorDomainTarget, passing a string rather than an instance of IAccelerator, ensure that the string is a valid domain name of an existing Global Accelerator instance.
See [the documentation on DNS addressing](https://docs.aws.amazon.com/global-accelerator/latest/dg/dns-addressing-custom-domains.dns-addressing.html) with Global Accelerator for more info.

* InterfaceVpcEndpoints

**Important:** Based on the CFN docs for VPCEndpoints - [see here](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-vpcendpoint.html#aws-resource-ec2-vpcendpoint-return-values) - the attributes returned for DnsEntries in CloudFormation is a combination of the hosted zone ID and the DNS name. The entries are ordered as follows: regional public DNS, zonal public DNS, private DNS, and wildcard DNS. This order is not enforced for AWS Marketplace services, and therefore this CDK construct is ONLY guaranteed to work with non-marketplace services.

```python
import aws_cdk.aws_ec2 as ec2

# zone: route53.HostedZone
# interface_vpc_endpoint: ec2.InterfaceVpcEndpoint


route53.ARecord(self, "AliasRecord",
    zone=zone,
    target=route53.RecordTarget.from_alias(targets.InterfaceVpcEndpointTarget(interface_vpc_endpoint))
)
```

* S3 Bucket Website:

**Important:** The Bucket name must strictly match the full DNS name.
See [the Developer Guide](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/getting-started.html) for more info.

```python
import aws_cdk.aws_s3 as s3


record_name = "www"
domain_name = "example.com"

bucket_website = s3.Bucket(self, "BucketWebsite",
    bucket_name=[record_name, domain_name].join("."),  # www.example.com
    public_read_access=True,
    website_index_document="index.html"
)

zone = route53.HostedZone.from_lookup(self, "Zone", domain_name=domain_name) # example.com

route53.ARecord(self, "AliasRecord",
    zone=zone,
    record_name=record_name,  # www
    target=route53.RecordTarget.from_alias(targets.BucketWebsiteTarget(bucket_website))
)
```

* User pool domain

  ```python
  import aws_cdk.aws_cognito as cognito

  # zone: route53.HostedZone
  # domain: cognito.UserPoolDomain

  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.UserPoolDomainTarget(domain))
  )
  ```
* Route 53 record

  ```python
  # zone: route53.HostedZone
  # record: route53.ARecord

  route53.ARecord(self, "AliasRecord",
      zone=zone,
      target=route53.RecordTarget.from_alias(targets.Route53RecordTarget(record))
  )
  ```
* Elastic Beanstalk environment:

**Important:** Only supports Elastic Beanstalk environments created after 2016 that have a regional endpoint.

```python
# zone: route53.HostedZone
# ebs_environment_url: str


route53.ARecord(self, "AliasRecord",
    zone=zone,
    target=route53.RecordTarget.from_alias(targets.ElasticBeanstalkEnvironmentEndpointTarget(ebs_environment_url))
)
```

See the documentation of `@aws-cdk/aws-route53` for more information.