From 00206270a4d00b6730c599d71013f4fcc4fc0abc Mon Sep 17 00:00:00 2001
From: Stuart Leeks <stuartle@microsoft.com>
Date: Fri, 8 Feb 2019 10:32:34 +0000
Subject: [PATCH 1/2] Mark maxTasksPerNode as forcenew

The maxTasksPerNode cannot be changed once a Batch pool has been created
so marking as ForceNew to require re-creating the pool
---
 azurerm/resource_arm_batch_pool.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/azurerm/resource_arm_batch_pool.go b/azurerm/resource_arm_batch_pool.go
index 42d3f8038ddf..5834c1f28c87 100644
--- a/azurerm/resource_arm_batch_pool.go
+++ b/azurerm/resource_arm_batch_pool.go
@@ -59,6 +59,7 @@ func resourceArmBatchPool() *schema.Resource {
 				Type:         schema.TypeInt,
 				Optional:     true,
 				Default:      1,
+				ForceNew:     true,
 				ValidateFunc: validation.IntAtLeast(1),
 			},
 			"fixed_scale": {

From d26103377d2d61d86252b0695e3e36a973fe28af Mon Sep 17 00:00:00 2001
From: tombuildsstuff <git@ibuildstuff.co.uk>
Date: Thu, 14 Feb 2019 22:48:54 +0100
Subject: [PATCH 2/2] r/batch_pool: updating `max_tasks_per_node` to be
 forcenew

---
 website/docs/r/batch_pool.html.markdown | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/website/docs/r/batch_pool.html.markdown b/website/docs/r/batch_pool.html.markdown
index aec085ecdc54..24edc13cf02c 100644
--- a/website/docs/r/batch_pool.html.markdown
+++ b/website/docs/r/batch_pool.html.markdown
@@ -46,7 +46,7 @@ resource "azurerm_batch_pool" "test" {
   display_name        = "Test Acc Pool Auto"
   vm_size             = "Standard_A1"
   node_agent_sku_id   = "batch.node.ubuntu 16.04"
-  
+
   auto_scale {
     evaluation_interval = "PT15M"
     formula             = <<EOF
@@ -57,7 +57,7 @@ resource "azurerm_batch_pool" "test" {
       $TargetDedicatedNodes=min(maxNumberofVMs, pendingTaskSamples);
 EOF
   }
-  
+
   storage_image_reference {
     publisher = "Canonical"
     offer     = "UbuntuServer"
@@ -102,7 +102,7 @@ The following arguments are supported:
 
 * `display_name` - (Optional) Specifies the display name of the Batch pool.
 
-* `max_tasks_per_node` - (Optional) Specifies the maximum number of tasks that can run concurrently on a single compute node in the pool. Defaults to `1`.
+* `max_tasks_per_node` - (Optional) Specifies the maximum number of tasks that can run concurrently on a single compute node in the pool. Defaults to `1`. Changing this forces a new resource to be created.
 
 * `fixed_scale` - (Optional) A `fixed_scale` block that describes the scale settings when using fixed scale.
 
@@ -122,7 +122,7 @@ A `fixed_scale` block supports the following:
 
 * `resize_timeout` - (Optional) The timeout for resize operations. Defaults to `PT15M`.
 
---- 
+---
 
 A `auto_scale` block supports the following:
 
@@ -166,4 +166,4 @@ A `auto_user` block exports the following:
 
 The following attributes are exported:
 
-* `id` - The Batch pool ID.
\ No newline at end of file
+* `id` - The Batch pool ID.