From 36cf8cae4fd2924fe3feb1cfa8337a0063b9c0e6 Mon Sep 17 00:00:00 2001
From: Jeffrey Zampieron <jzampieron@zproject.net>
Date: Sun, 4 Feb 2018 15:15:26 -0500
Subject: [PATCH] Set ignore case function for diffs on the managed data disk
 ids. This provides a way to work around #582 by using the Azure Portal to
 attach disks.

---
 azurerm/resource_arm_virtual_machine.go | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/azurerm/resource_arm_virtual_machine.go b/azurerm/resource_arm_virtual_machine.go
index 1b6fad38ced0..1403469b7335 100644
--- a/azurerm/resource_arm_virtual_machine.go
+++ b/azurerm/resource_arm_virtual_machine.go
@@ -252,10 +252,11 @@ func resourceArmVirtualMachine() *schema.Resource {
 						},
 
 						"managed_disk_id": {
-							Type:     schema.TypeString,
-							Optional: true,
-							ForceNew: true,
-							Computed: true,
+							Type:             schema.TypeString,
+							Optional:         true,
+							ForceNew:         true,
+							Computed:         true,
+							DiffSuppressFunc: ignoreCaseDiffSuppressFunc,
 						},
 
 						"managed_disk_type": {