[Bug]: IoT Core Provisioning Template Ignores Updates to Pre-Provisioning Hook ARN

[PeterBurner]

Terraform Core Version

1.8.2

AWS Provider Version

5.47.0

Affected Resource(s)

• aws_iot_provisioning_template

Expected Behavior

Changing the value of the pre_provisioning_hook.target_arn property should update the provisioning template.

Actual Behavior

Changing the value of the pre_provisioning_hook.target_arn property does not update the provisioning template. It continues to contain the old ARN, which breaks functionality. Devices cannot be provisioned anymore.

Relevant Error/Panic Output Snippet

No response

Terraform Configuration Files

resource "aws_iam_role" "test" {
  name = "test"

  assume_role_policy = jsonencode({
    Version = "2012-10-17"
    Statement = [
      {
        Effect = "Allow"
        Principal = {
          Service = "iot.amazonaws.com"
        }
        Action = "sts:AssumeRole"
      }
    ]
  })
}

resource "aws_iam_role_policy_attachment" "test" {
  role       = aws_iam_role.test.name
  policy_arn = "arn:aws:iam::aws:policy/service-role/AWSIoTThingsRegistration"
}

resource "aws_iot_provisioning_template" "test" {
  name                  = "test"
  provisioning_role_arn = aws_iam_role.test.arn
  enabled               = true

  template_body = jsonencode({
    Parameters = {
      SerialNumber = { Type = "String" }
    }

    Resources = {
      certificate = {
        Properties = {
          CertificateId = { Ref = "AWS::IoT::Certificate::Id" }
          Status        = "Active"
        }
        Type = "AWS::IoT::Certificate"
      }
    }
  })
}

Steps to Reproduce

1. Deploy example
2. Add pre_provisioning_hook { target_arn = "arn:aws:lambda:eu-central-1:000000000000:function:test" } to aws_iot_provisioning_template resource
3. Deploy again
4. See that provisioning template is missing pre-provisioning hook

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

No response

Would you like to implement a fix?

No

[github-actions]

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[DanielRieske]

Hi @PeterBurner 👋, thanks for reporting this issue, I will fix this as part of the iot SDKv2 migration PR.

[github-actions]

Warning

This issue has been closed, meaning that any additional comments are hard for our team to see. Please assume that the maintainers will not see them.

Ongoing conversations amongst community members are welcome, however, the issue will be locked after 30 days. Moving conversations to another venue, such as the AWS Provider forum, is recommended. If you have additional concerns, please open a new issue, referencing this one where needed.

[github-actions]

This functionality has been released in v5.57.0 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. Thank you!

[github-actions]

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 have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.