Creating/modifying multiple SQS queues with the same name doesn't fail

[tonnydourado]

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Terraform CLI and Terraform AWS Provider Version

Terraform v0.12.28
+ provider.aws v3.8.0

Affected Resource(s)

• aws_sqs_queue

Terraform Configuration Files

provider "aws" {
  region     = "eu-west-1"
}

// This will result in a single queue being created, and upon re-applying, 
// the visibility_timeout_seconds will change depending on which resource
// gets applied last:
resource "aws_sqs_queue" "first_queue" {
  name                       = "my-test-queue"
  visibility_timeout_seconds = 4 * 60
}

resource "aws_sqs_queue" "second_queue" {
  name                       = "my-test-queue"
  visibility_timeout_seconds = 5 * 60
}

// This, on the other hand, will always fail:
// resource "aws_s3_bucket" "b1" {
//   bucket = "test-bucket-for-testing-duplication"
//   acl    = "private"
// }

// resource "aws_s3_bucket" "b2" {
//   bucket = "test-bucket-for-testing-duplication"
//   acl    = "private"
// }

Expected Behavior

One of the aws_sqs_queue resources should fail to apply.

Actual Behavior

Both aws_sqs_queue resources are applied, only one queue is created, and if you have different attributes in the aws_sqs_queue resources, the actual queue changea non-deterministically, depending on which resource is applied last

Steps to Reproduce

Applying the terraform code above always reproduces the issue

Important Factoids

The API documentation for SQS says that passing the same parameters of an existing queue to CreateQueue will just return the existing queue, but in this case even changing other parameters, but not the name, only a single queue gets created.

[bflad]

Hi @tonnydourado 👋 Thank you for submitting this and sorry you ran into trouble here. Please note that this is unexpected behavior in Terraform resources and that this has been previously reported in #10824. To consolidate efforts and discussions, I'm going to close this issue in preference of the existing one. Please 👍 react and subscribe there for further updates.

[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!