maximum_elastic_worker_count not ignored when set to 1 on non elastic premium plans

[sit-md]

Is there an existing issue for this?

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Terraform Version

1.8.2

AzureRM Provider Version

3.101.0

Affected Resource(s)/Data Source(s)

azurerm_service_plan

Terraform Configuration Files

resource "azurerm_service_plan" "appServicePlan" {
  name                         = "SomeAppServicePlan"
  resource_group_name          = "MyResourceGroup"
  location                     = "West Europe"
  sku_name                     = "Y1"
  maximum_elastic_worker_count = 1
  os_type                      = "Windows"
}

Debug Output/Panic Output

Error: `maximum_elastic_worker_count` can only be specified with Elastic Premium Skus

Expected Behaviour

The maximum_elastic_worker_count is ignored if plan kind is not Elastic Premium and this value is set to 1 (which is the value on a consumption-based plan after applying the configuration).

Actual Behaviour

On consumption plans:
Before applying the configuration, the value of maximum_elastic_worker_count needs to be 0 to be ignored.
After applying the configuration, the value of maximum_elastic_worker_count needs to be 1 to be ignored.

Steps to Reproduce

terraform apply

Important Factoids

No response

References

No response

[xiaxyi]

Thanks @sit-md for raising this issue, are you trying set the maximum_elastic_worker_count for consumption plan? If this is the case, let me confirm the api behavior first? Please correct me if there is any misunderstanding.

[sit-md]

@xiaxyi Yes, that is correct. Some context for you: in our non-production environments we use consumption plans to keep the costs low. In the stage and production environments we use elastic premium plans to be able to take the load. Our configuration for this resource lives in a module to keep it as DRY as possible.