terraform-provider-azurerm: Private Link Endpoint resource doesn't accept DNS Alias

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Terraform (and AzureRM Provider) Version

v0.12.20

Affected Resource(s)

• azurerm_private_endpoint

Terraform Configuration Files

resource "azurerm_private_endpoint" "example" {
  name                = "ExampleName"
  location            = var.location
  resource_group_name = local.resource_group_name
  subnet_id           = azurerm_subnet.subnetname.id

  private_service_connection {
    name                              = "ToEndpoint"
    is_manual_connection              = true
    private_connection_resource_id      = "uniquednsname.eastus.azure.privatelinkservice"
    request_message                   = "Customer # XXXX"

  }
}

Expected Behavior

Azure supports either the resource ID or the DNS name to reference the private link service. I expected to be able to provide the DNS FQDN as the “private_connection_resource_id” or have an option to pass a “private_connection_alias” or similar.

Actual Behavior

Terraform returned an error that it was an invalid URI for the request.

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000