How can I create a Route 53 Record to an ALB? (AWS)

Question

I want to create a new alb and a route53 record that points to it.

I see I have the DNS name: ${aws_lb.MYALB.dns_name}

Is it possible to create a cname to the public DNS name with aws_route53_record resource?

Answer 1

See the Terraform Route53 Record docs

You can add a basic CNAME entry with the following:

resource "aws_route53_record" "cname_route53_record" {
  zone_id = aws_route53_zone.primary.zone_id # Replace with your zone ID
  name    = "www.example.com" # Replace with your subdomain, Note: not valid with "apex" domains, e.g. example.com
  type    = "CNAME"
  ttl     = "60"
  records = [aws_lb.MYALB.dns_name]
}

Or if you're are using an "apex" domain (e.g. example.com) consider using an Alias (AWS Alias Docs):

resource "aws_route53_record" "alias_route53_record" {
  zone_id = aws_route53_zone.primary.zone_id # Replace with your zone ID
  name    = "example.com" # Replace with your name/domain/subdomain
  type    = "A"

  alias {
    name                   = aws_lb.MYALB.dns_name
    zone_id                = aws_lb.MYALB.zone_id
    evaluate_target_health = true
  }
}