permanent diff for resource `grafana_cloud_stack`

[jan-mrm]

Terraform Version

1.9.8

Terraform Grafana Provider Version

v4.28.2

Grafana Version

GrafanaCloud

Affected Resource(s)

• grafana_cloud_stack

Terraform Configuration Files

resource "grafana_cloud_stack" "stack" {
  name = local.stack_name
  slug = local.stack_name
  region_slug = var.stack_config.region
}

Expected Behavior

no diff when doing terraform apply multiple times.

One diff after applying the update to or above version v4.27.1 is expected since it introduced the new read-only fields with PR #2568. but once they are read they should not show as a diff again unless they changed in the backend, or?

Actual Behavior

  # module.stack["stack"].grafana_cloud_stack.stack will be updated in-place
  ~ resource "grafana_cloud_stack" "stack" {
      + fleet_management_private_connectivity_info_availability_zones = (known after apply)
      + fleet_management_private_connectivity_info_regions            = (known after apply)
      + graphite_private_connectivity_info_availability_zones         = (known after apply)
      + graphite_private_connectivity_info_regions                    = (known after apply)
        id                                                            = "SOME-ID"
      + logs_private_connectivity_info_availability_zones             = (known after apply)
      + logs_private_connectivity_info_regions                        = (known after apply)
        name                                                          = "SOME-NAME"
      + otlp_private_connectivity_info_availability_zones             = (known after apply)
      + otlp_private_connectivity_info_regions                        = (known after apply)
      + pdc_api_private_connectivity_info_availability_zones          = (known after apply)
      + pdc_api_private_connectivity_info_regions                     = (known after apply)
      + pdc_gateway_private_connectivity_info_availability_zones      = (known after apply)
      + pdc_gateway_private_connectivity_info_regions                 = (known after apply)
      + profiles_private_connectivity_info_availability_zones         = (known after apply)
      + profiles_private_connectivity_info_regions                    = (known after apply)
      + prometheus_private_connectivity_info_availability_zones       = (known after apply)
      + prometheus_private_connectivity_info_regions                  = (known after apply)
      + traces_private_connectivity_info_availability_zones           = (known after apply)
      + traces_private_connectivity_info_regions                      = (known after apply)
        # (51 unchanged attributes hidden)
    }

Steps to Reproduce

No response

Important Factoids

• azure stacks show that diff (non-aws)
• aws stacks do not show that diff

References

• Release exposing the new read-only fields: https://github.com/grafana/terraform-provider-grafana/releases/tag/v4.27.1
• Pull Request exposing the new read-only fields: bump grafana-com-public-clients version and add support for exposing both the regions and the azs #2568

[jan-mrm]

I'm guessing it might be an issue for non-aws stacks, maybe? since all the new read-only fields say (only for AWS stacks) in their description.