Handlie vm_instance_view.statuses being None (#2603)

* Handlie vm_instance_view.statuses being None

* Update CHANGELOG

CHANGELOG.md

@@ -17,7 +17,7 @@ ENHANCEMENTS:
 
 BUG FIXES:
 
-*
+* Resource processor error on deploying user-resource: TypeError: 'NoneType' object is not iterable ([#2569](https://github.com/microsoft/AzureTRE/issues/2569))
 
 ## 0.4.3 (September 12, 2022)
 

api_app/_version.py

@@ -1 +1 @@
-__version__ = "0.4.33"
+__version__ = "0.4.34"

api_app/services/azure_resource_status.py

@@ -14,7 +14,11 @@ def get_azure_resource_status(resource_id):
     try:
         if resource_type == 'Microsoft.Compute/virtualMachines':
             vm_instance_view: models.VirtualMachineInstanceView = get_azure_vm_instance_view(resource_name, resource_group_name)
-            power_state = [x for x in vm_instance_view.statuses if x.code.startswith('PowerState')][0].display_status
+            power_state = None
+            if vm_instance_view.statuses is not None:
+                power_states = [x for x in vm_instance_view.statuses if x.code.startswith('PowerState')]
+                if len(power_states) > 0:
+                    power_state = power_states[0].display_status
             return {"powerState": power_state}
     except ResourceNotFoundError:
         logging.warning(f"Unable to query resource status for {resource_id}, as the resource was not found.")