resource "azurerm_managed_disk" "source" {
              name                 = "acctestmd1"
              location             = "West US 2"
              resource_group_name  = azurerm_resource_group.example.name
              storage_account_type = "Standard_LRS"
              create_option        = "Empty"
              disk_size_gb         = "1"
+             disk_encryption_set_id = "koko"
              tags = {
                environment = "staging"
              }
            }