make dns_servers a separated resource block

Author: lonegunmanb

README.md

@@ -212,6 +212,7 @@ No modules.
 | [azurerm_subnet_network_security_group_association.vnet](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_network_security_group_association) | resource |
 | [azurerm_subnet_route_table_association.vnet](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/subnet_route_table_association) | resource |
 | [azurerm_virtual_network.vnet](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/virtual_network) | resource |
+| [azurerm_virtual_network_dns_servers.this](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/virtual_network_dns_servers) | resource |
 
 ## Inputs
 

main.tf

@@ -4,7 +4,6 @@ resource "azurerm_virtual_network" "vnet" {
   name                = var.vnet_name
   resource_group_name = var.resource_group_name
   bgp_community       = var.bgp_community
-  dns_servers         = var.dns_servers
   tags = merge(var.tags, (/*<box>*/ (var.tracing_tags_enabled ? { for k, v in /*</box>*/ {
     avm_git_commit           = "2b2f05969200c71b6609f4cdfa9120d48af55537"
     avm_git_file             = "main.tf"
@@ -24,6 +23,18 @@ resource "azurerm_virtual_network" "vnet" {
       id     = ddos_protection_plan.value.id
     }
   }
+  lifecycle {
+    ignore_changes = [
+      dns_servers,
+    ]
+  }
+}
+
+resource "azurerm_virtual_network_dns_servers" "this" {
+  count = var.dns_servers != null ? 1 : 0
+
+  virtual_network_id = azurerm_virtual_network.vnet.id
+  dns_servers        = var.dns_servers
 }
 
 moved {