From 9bd702ef3714e8ace2d638745d8d175d9335932e Mon Sep 17 00:00:00 2001
From: Zim Kalinowski <zikalino@microsoft.com>
Date: Tue, 4 Sep 2018 09:41:41 +0800
Subject: [PATCH] vm size idempotence (#45108)

---
 .../cloud/azure/azure_rm_virtualmachine.py    |  7 ++++++
 .../tasks/virtualmachine.yml                  | 25 +++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine.py b/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine.py
index a63623d308d..470f941db23 100644
--- a/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine.py
+++ b/lib/ansible/modules/cloud/azure/azure_rm_virtualmachine.py
@@ -901,6 +901,13 @@ class AzureRMVirtualMachine(AzureRMModuleBase):
                     changed = True
                     vm_dict['properties']['storageProfile']['osDisk']['diskSizeGB'] = self.os_disk_size_gb
 
+                if self.vm_size and \
+                   self.vm_size != vm_dict['properties']['hardwareProfile']['vmSize']:
+                    self.log('CHANGED: virtual machine {0} - size '.format(self.name))
+                    differences.append('VM size')
+                    changed = True
+                    vm_dict['properties']['hardwareProfile']['vmSize'] = self.vm_size
+
                 update_tags, vm_dict['tags'] = self.update_tags(vm_dict.get('tags', dict()))
                 if update_tags:
                     differences.append('Tags')
diff --git a/test/integration/targets/azure_rm_virtualmachine/tasks/virtualmachine.yml b/test/integration/targets/azure_rm_virtualmachine/tasks/virtualmachine.yml
index 23d807559fb..335beea2f36 100644
--- a/test/integration/targets/azure_rm_virtualmachine/tasks/virtualmachine.yml
+++ b/test/integration/targets/azure_rm_virtualmachine/tasks/virtualmachine.yml
@@ -192,6 +192,31 @@
 - assert:
       that: not output.changed
 
+- name: Resize VM
+  azure_rm_virtualmachine:
+      resource_group: "{{ resource_group }}"
+      name: "{{ vm_name1 }}"
+      vm_size: Standard_A1
+      storage_account: "{{ storage_account }}"
+      storage_container: "{{ vm_name1 }}"
+      storage_blob: "{{ vm_name1 }}.vhd"
+      admin_username: adminuser
+      admin_password: Password123!
+      short_hostname: testvm
+      os_type: Linux
+      network_interfaces: "{{ vm_name1 }}"
+      image:
+        offer: UbuntuServer
+        publisher: Canonical
+        sku: 16.04-LTS
+        version: latest
+  register: output
+
+- assert:
+      that:
+        - output.changed
+        - output.ansible_facts.azure_vm.properties.hardwareProfile.vmSize == "Standard_A1"
+
 - name: Delete VM
   azure_rm_virtualmachine:
       resource_group: "{{ resource_group }}"