Feature Request: Data source to parse an ARN

[ewbankkit]

Add a data source to parse an ARN into its constituent parts.

[bflad]

Can you explain the use case?

[barend]

It's a convenient way to get to the account ID and region of any resource. I find myself using this from time to time, for example when constructing an IAM policy document:

foo_arn = "arn:aws:xxx::${element(split(":", data.aws_yyy.zzz.arn), 4)}:foo/bar"

It would help readability if I could use something akin to

data "aws_arn" "xxx" {
  arn = "${data.aws_yyy.zzz.arn}"
}

resource "aws_abc" "abc" {
  foo_arn = "arn:aws:xxx::${data.aws_arn.xxx.account_id}:foo/bar"
}

[ewbankkit]

Yes, my specific use case is some prototype work around the Resource Groups Tagging GetResources API which returns a list of ARNs. I'd like to be able to parse the ARN to extract resource type etc.

[bflad]

This will be released later this week in v1.19.0 of the AWS provider.

[bflad]

This has been released in version 1.19.0 of the AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!