Terraform-provider-aws: Add ARN attribute for aws_instance

[tdmalone]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Description

I'd love to be able to directly access the ARN of an EC2 instance, for example for interpolation into an IAM policy.

New or Affected Resource(s)

• aws_instance
• aws_instance (data resource)

Of note, the ARN is already exported for the db_instance resource and data resource.

Potential Terraform Configuration

resource "aws_instance" "main" {
  // ... etc. etc.
}

data "template_file" "iam_policy_template" {
  template = "$(file("my-policy.json")}"

  vars {
    instance_arn = "${aws_instance.main.arn}"
  }
}

[blckct]

That's probably not the only resource with missing ARN, probably would be a good idea to go over them and check.

[bflad]

The new arn attribute for the resource and data source has been merged and will release with version 1.31.0 of the AWS provider later this week. 👍

[bflad]

This has been released in version 1.31.0 of the AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[hashibot[bot]]

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!