support-for-publicDNS-for-privateAKScluster : adding private_dns_zone_id & private_cluster_public_fqdn_enabled vars to control private aks cluster

main.tf

@@ -8,14 +8,16 @@ module "ssh-key" {
 }
 
 resource "azurerm_kubernetes_cluster" "main" {
-  name                    = var.cluster_name == null ? "${var.prefix}-aks" : var.cluster_name
-  kubernetes_version      = var.kubernetes_version
-  location                = coalesce(var.location, data.azurerm_resource_group.main.location)
-  resource_group_name     = data.azurerm_resource_group.main.name
-  node_resource_group     = var.node_resource_group
-  dns_prefix              = var.prefix
-  sku_tier                = var.sku_tier
-  private_cluster_enabled = var.private_cluster_enabled
+  name                                = var.cluster_name == null ? "${var.prefix}-aks" : var.cluster_name
+  kubernetes_version                  = var.kubernetes_version
+  location                            = coalesce(var.location, data.azurerm_resource_group.main.location)
+  resource_group_name                 = data.azurerm_resource_group.main.name
+  node_resource_group                 = var.node_resource_group
+  dns_prefix                          = var.prefix
+  sku_tier                            = var.sku_tier
+  private_cluster_enabled             = var.private_cluster_enabled
+  private_dns_zone_id                 = var.private_dns_zone_id
+  private_cluster_public_fqdn_enabled = var.private_cluster_public_fqdn_enabled
 
   linux_profile {
     admin_username = var.admin_username

variables.tf

@@ -333,6 +333,26 @@ variable "enable_host_encryption" {
   default     = false
 }
 
+variable "private_dns_zone_id" {
+  description = <<EOT
+(Optional) Either the ID of Private DNS Zone which should be delegated to this Cluster,
+or System to have AKS manage this or None.
+In case of None you will need to bring your own DNS server and set up resolving,
+otherwise cluster will have issues after provisioning.
+Changing this forces a new resource to be created.
+EOT
+  type        = string
+  default     = null
+}
+
+variable "private_cluster_public_fqdn_enabled" {
+  description = <<EOT
+(Optional) Specifies whether a Public FQDN for this Private Cluster should be added. Defaults to false.
+EOT
+  type        = bool
+  default     = false
+}
+
 variable "node_resource_group" {
   description = "The auto-generated Resource Group which contains the resources for this Managed Kubernetes Cluster. Changing this forces a new resource to be created."
   type        = string