Terraform Azure Function Default Prewarmed Instances Does Not Match Azure Default

[RiverPhillips]

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Terraform (and AzureRM Provider) Version

Terarform Version: 0.13.3
Azurerm Version: Confirmed on 2.28.0 and 2.33.0

Affected Resource(s)

• azurerm_function_app

Terraform Configuration Files

resource "azurerm_resource_group" "example" {
  name     = "azure-functions-test-rg"
  location = "westus2"
}

resource "azurerm_storage_account" "example" {
  name                     = "functionsapptestsa"
  resource_group_name      = azurerm_resource_group.example.name
  location                 = azurerm_resource_group.example.location
  account_tier             = "Standard"
  account_replication_type = "LRS"
}

resource "azurerm_app_service_plan" "example" {
  name                = "azure-functions-test-service-plan"
  location            = azurerm_resource_group.example.location
  resource_group_name = azurerm_resource_group.example.name

  sku {
    tier = "ElasticPremium"
    size = "EP1"
  }
}

resource "azurerm_function_app" "example" {
  name                       = "test-azure-functions"
  location                   = azurerm_resource_group.example.location
  resource_group_name        = azurerm_resource_group.example.name
  app_service_plan_id        = azurerm_app_service_plan.example.id
  storage_account_name       = azurerm_storage_account.example.name
  storage_account_access_key = azurerm_storage_account.example.primary_access_key
}

Debug Output

Expected Behavior

Without explicity setting the prewarmed instances I would expect it to default to 1 as detailed by Microsoft here

The default pre-warmed instance count is 1, and for most scenarios should remain as 1.

Actual Behavior

Prewarmed instances set to 0

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000

[ghost]

This has been released in version 2.42.0 of the provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading. As an example:

provider "azurerm" {
    version = "~> 2.42.0"
}
# ... other configuration ...

[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. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 [email protected]. Thanks!