Public IP Deletion Fails because it's not disassociated from NIC first

[petewilcock]

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Terraform Version

1.8.1

AzureRM Provider Version

4.3.0

Affected Resource(s)/Data Source(s)

azurerm_public_ip

Terraform Configuration Files

resource "azurerm_public_ip" "public_ip" {
  count               = var.assign_public_ip ? 1 : 0
  name                = "${var.server_name}-pip"
  location            = var.azure_location
  resource_group_name = var.resource_group_name
  sku                 = "Basic"
  allocation_method   = var.public_ip_allocation_method
}

resource "azurerm_network_interface" "server_nic" {
  name                = var.server_name
  location            = var.azure_location
  resource_group_name = var.resource_group_name

  ip_configuration {
    name                          = "internal"
    subnet_id                     = var.subnet_id
    private_ip_address_allocation = var.private_ip_allocation_method
    private_ip_address            = var.private_ip_allocation_method == "Static" ? var.private_ip_address : null
    public_ip_address_id          = var.assign_public_ip ? azurerm_public_ip.public_ip[0].id : null
  }

}

Debug Output/Panic Output

Public I P Addresses Name: "server-pip"): performing Delete: unexpected status 400 (400 Bad Request) with error: PublicIPAddressCannotBeDeleted: Public IP address /subscriptions/-/resourceGroups/-/providers/Microsoft.Network/publicIPAddresses/server-pip can not be deleted since it is still allocated to resource /subscriptions/-/resourceGroups/-/providers/Microsoft.Network/networkInterfaces/-/ipConfigurations/internal. In order to delete the public IP, disassociate/detach the Public IP address from the resource.  To learn how to do this, see aka.ms/deletepublicip

Expected Behaviour

Provider should understand dependency ordering and disassociate the IP address to be deleted first in the azurerm_network_interface before proceeding to delete azurerm_public_ip

Actual Behaviour

Terraform always tries to delete IP first, leading to above error before disassociation can occur.

Steps to Reproduce

terraform apply

Important Factoids

No response

References

Alleges to have been fixed in a previous issue, but this was either incorrect, or there has been a regression in the meantime.

#2566