From 7dd0b5af87966a61d85c8ad312b28a5f6508b38a Mon Sep 17 00:00:00 2001
From: Nguyen Nhu Hieu <5441003+hieumoscow@users.noreply.github.com>
Date: Mon, 20 Sep 2021 17:03:43 +0800
Subject: [PATCH 1/3] Update kubernetes_cluster_resource.go

Fix #13099, to do in place update for `private_cluster_public_fqdn_enabled`
---
 internal/services/containers/kubernetes_cluster_resource.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/services/containers/kubernetes_cluster_resource.go b/internal/services/containers/kubernetes_cluster_resource.go
index d39046a9e485..26c1600261c5 100644
--- a/internal/services/containers/kubernetes_cluster_resource.go
+++ b/internal/services/containers/kubernetes_cluster_resource.go
@@ -593,7 +593,7 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
 				Type:     pluginsdk.TypeBool,
 				Optional: true,
 				Default:  false,
-				ForceNew: true,
+				ForceNew: false,
 			},
 
 			"private_dns_zone_id": {

From 8c29589dee193c3c36ee7708d0fc56ff433e17dc Mon Sep 17 00:00:00 2001
From: Nguyen Nhu Hieu <5441003+hieumoscow@users.noreply.github.com>
Date: Tue, 21 Sep 2021 09:56:59 +0800
Subject: [PATCH 2/3] Update kubernetes_cluster_resource.go

Fix per https://github.com/hashicorp/terraform-provider-azurerm/pull/13413#pullrequestreview-758607118
---
 internal/services/containers/kubernetes_cluster_resource.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/internal/services/containers/kubernetes_cluster_resource.go b/internal/services/containers/kubernetes_cluster_resource.go
index 26c1600261c5..69dae5f79726 100644
--- a/internal/services/containers/kubernetes_cluster_resource.go
+++ b/internal/services/containers/kubernetes_cluster_resource.go
@@ -593,7 +593,6 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
 				Type:     pluginsdk.TypeBool,
 				Optional: true,
 				Default:  false,
-				ForceNew: false,
 			},
 
 			"private_dns_zone_id": {
@@ -1224,6 +1223,11 @@ func resourceKubernetesClusterUpdate(d *pluginsdk.ResourceData, meta interface{}
 			existing.ManagedClusterProperties.APIServerAccessProfile.PrivateDNSZone = utils.String(v.(string))
 		}
 	}
+	
+	if d.HasChange("private_cluster_public_fqdn_enabled") {
+                updateCluster = true
+                existing.ManagedClusterProperties.APIServerAccessProfile.EnablePrivateClusterPublicFQDN = utils.Bool(d.Get("private_cluster_public_fqdn_enabled").(bool))
+        }
 
 	if d.HasChange("auto_scaler_profile") {
 		updateCluster = true

From 4d2f947ba3168c6c7f6a54616628827f3b3cbd5b Mon Sep 17 00:00:00 2001
From: Hieu Nguyen Nhu <5441003+hieumoscow@users.noreply.github.com>
Date: Thu, 23 Sep 2021 09:26:23 +0800
Subject: [PATCH 3/3] fmt

---
 .../services/containers/kubernetes_cluster_resource.go    | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/internal/services/containers/kubernetes_cluster_resource.go b/internal/services/containers/kubernetes_cluster_resource.go
index 69dae5f79726..517fff0e7456 100644
--- a/internal/services/containers/kubernetes_cluster_resource.go
+++ b/internal/services/containers/kubernetes_cluster_resource.go
@@ -1223,11 +1223,11 @@ func resourceKubernetesClusterUpdate(d *pluginsdk.ResourceData, meta interface{}
 			existing.ManagedClusterProperties.APIServerAccessProfile.PrivateDNSZone = utils.String(v.(string))
 		}
 	}
-	
+
 	if d.HasChange("private_cluster_public_fqdn_enabled") {
-                updateCluster = true
-                existing.ManagedClusterProperties.APIServerAccessProfile.EnablePrivateClusterPublicFQDN = utils.Bool(d.Get("private_cluster_public_fqdn_enabled").(bool))
-        }
+		updateCluster = true
+		existing.ManagedClusterProperties.APIServerAccessProfile.EnablePrivateClusterPublicFQDN = utils.Bool(d.Get("private_cluster_public_fqdn_enabled").(bool))
+	}
 
 	if d.HasChange("auto_scaler_profile") {
 		updateCluster = true