compute.VirtualMachineScaleSetsClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="InvalidParameter" Message="Parameter 'dataDisk.name' is not allowed." Target="dataDisk.name"

Is there an existing issue for this?

[X] I have searched the existing issues

Community Note

Please vote on this issue by adding a :thumbsup: reaction to the original issue to help the community and maintainers prioritize this request
Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
If you are interested in working on this issue or have submitted a pull request, please leave a comment and review the contribution guide to help.

Terraform Version

1.3.1

AzureRM Provider Version

3.25

Affected Resource(s)/Data Source(s)

azurerm_azurerm_linux_virtual_machine_scale_set

Terraform Configuration Files

resource "azurerm_linux_virtual_machine_scale_set" "vmss" {
  name                            = var.vmss_name
  resource_group_name             = var.resource_group_name
  location                        = var.location
  sku                             = var.size
  instances                       = var.vmss_instances
  disable_password_authentication = true
  computer_name_prefix            = var.vmss_name
  upgrade_mode                    = var.upgrade_mode
  source_image_id                 = var.source_image_id
  admin_username                  = var.admin_username
  tags                            = merge(local.resource_tags, local.tags, var.tags, tomap({ "CreatedOn" = local.date }))

  admin_ssh_key {
    username   = var.admin_username
    public_key = var.admin_ssh_public_key
  }

  lifecycle {
    ignore_changes = [tags["CreatedOn"]]
  }

  dynamic "identity" {
    for_each = var.use_managed_identity ? [1] : []
    content {
      type         = var.identity_type
      identity_ids = var.identity_ids
    }
  }

  os_disk {
    caching                   = var.caching
    storage_account_type      = var.storage_account_type
    disk_size_gb              = var.disk_size_gb
    write_accelerator_enabled = var.write_accelerator_enabled
    disk_encryption_set_id    = var.disk_encryption_set_id
  }

  data_disk {
    name                      = var.data_disk_name
    caching                   = var.data_disk_caching
    create_option             = var.create_option
    disk_size_gb              = var.data_disk_disk_size_gb
    lun                       = var.data_disk_lun
    storage_account_type      = var.data_disk_storage_account_type
    disk_encryption_set_id    = var.disk_encryption_set_id
    write_accelerator_enabled = var.data_disk_write_accelerator_enabled
  }

  boot_diagnostics {
    storage_account_uri = var.storage_account_uri
  }

  network_interface {
    name                          = "${var.vmss_name}-${var.network_interface_name}"
    primary                       = true
    enable_ip_forwarding          = false
    dns_servers                   = var.dns_servers
    enable_accelerated_networking = var.enable_accelerated_networking
    network_security_group_id     = var.nsg_id

    ip_configuration {
      primary                                = true
      name                                   = "${var.vmss_name}-ipconfig"
      subnet_id                              = var.subnet_id
      load_balancer_backend_address_pool_ids = var.lb_backend_ids
      application_security_group_ids         = var.app_security_group_ids
    }
  }
  zone_balance = var.zone_balance #true
  zones        = var.zones
}

Debug Output/Panic Output

rror: creating Linux Virtual Machine Scale Set: (Name "xyz" / Resource Group "xyz"): compute.VirtualMachineScaleSetsClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="InvalidParameter" Message="Parameter 'dataDisk.name' is not allowed." Target="dataDisk.name"
│ 
│   with module.vmss.azurerm_linux_virtual_machine_scale_set.vmss,
│   on .terraform/modules/vmss/main.tf line 13, in resource "azurerm_linux_virtual_machine_scale_set" "vmss":
│   13: resource "azurerm_linux_virtual_machine_scale_set" "vmss" {
│ 
╵
##[error]Bash exited with code '1'.
##[error]Bash wrote one or more lines to the standard error stream.
##[error]╷
│ Error: creating Linux Virtual Machine Scale Set: (Name "xyz" / Resource Group "xyz"): compute.VirtualMachineScaleSetsClient#CreateOrUpdate: Failure sending request: StatusCode=400 -- Original Error: Code="InvalidParameter" Message="Parameter 'dataDisk.name' is not allowed." Target="dataDisk.name"
│ 
│   with module.vmss.azurerm_linux_virtual_machine_scale_set.vmss,
│   on .terraform/modules/vmss/main.tf line 13, in resource "azurerm_linux_virtual_machine_scale_set" "vmss":
│   13: resource "azurerm_linux_virtual_machine_scale_set" "vmss" {

Expected Behaviour

VMSS should be deployed along with datadisk names as we supplied

Actual Behaviour

When supplying datadisk name in data_disk block, it fails with above error. However, when done without name, it works data_disk { name = var.data_disk_name caching = var.data_disk_caching create_option = var.create_option disk_size_gb = var.data_disk_disk_size_gb lun = var.data_disk_lun storage_account_type = var.data_disk_storage_account_type disk_encryption_set_id = var.disk_encryption_set_id write_accelerator_enabled = var.data_disk_write_accelerator_enabled }

boot_diagnostics { storage_account_uri = var.storage_account_uri }

Steps to Reproduce

No response

Important Factoids

No response

References

No response

hashicorp / terraform-provider-azurerm