data-source/aws_partition: reverse_dns_prefix attribute incorrect outside AWS Commercial and GovCloud (US)

[bflad]

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Terraform CLI and Terraform AWS Provider Version

Any version of Terraform CLI and Terraform AWS Provider version 3.24.0/3.24.1

Affected Resource(s)

• aws_partition

Terraform Configuration Files

data "aws_partition" "current" {}

output "reverse_dns" {
  value = data.aws_partition.current.reverse_dns_prefix
}

Expected Behavior

• In AWS China, it should return cn.com.amazonaws
• In AWS SC2S, it should return gov.sgov.sc2s
• In AWS C2S, it should return gov.ic.c2s

Actual Behavior

It is reverse sorted alphabetically:

• In AWS China, it would return com.cn.amazonaws
• In AWS SC2S, it would return sc2s.sgov.gov
• In AWS C2S, it would return ic.gov.c2s

Steps to Reproduce

1. terraform apply

Important Factoids

The sorting is using sort.Reverse() not slice index swapping.

References

• https://github.com/hashicorp/terraform-provider-aws/pull/16638#issuecomment-761194978

[ghost]

This has been released in version 3.27.0 of the Terraform AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template for triage. Thanks!

[ghost]

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