如何在Terraform中配置Route53的CNAME Alias记录？目标配置位置存疑

Hey there, let's clear up the confusion here! First, a key point to understand: Route53 Alias records only work with AWS-managed resources (like ELBs, CloudFront distributions, S3 static websites, or other records within the same Route53 hosted zone). Since your target is an external domain (server.some-external-domain.de), you can't use an Alias record here—you'll need to create a standard CNAME record instead, matching your existing DNS entry.

Here's the Terraform code for your specific record: #

resource "aws_route53_record" "something_cname" {
  zone_id = "${aws_route53_zone.your_zone.zone_id}" # Replace with your Route53 zone ID reference
  name    = "something.domainmanagedbyroute53.de"
  type    = "CNAME"
  ttl     = 3600
  records = ["server.some-external-domain."] # Note the trailing dot to avoid zone suffix addition
}

A quick breakdown of the code: #

• zone_id: Replace this with the reference to your Route53 hosted zone (either using a resource reference like ${aws_route53_zone.your_zone.zone_id} or hardcode the zone ID if you prefer)
• name: Exact subdomain from your original record
• type: Set to CNAME since we're pointing to an external domain
• ttl: Matches your original 3600 value
• records: The target external domain, with a trailing dot to ensure Route53 doesn't append your hosted zone's domain suffix automatically

To clarify why the Alias example from the docs doesn't apply here: that example uses an Alias to point to an AWS ELB, which is an AWS-managed resource. Alias records have benefits like automatic health checks (when applicable) and no TTL limitations, but they're restricted to AWS-owned targets. For external domains, stick with the standard CNAME record as shown above.

内容的提问来源于stack exchange，提问作者user2656732