Fix cs_instance for existing instance if account/domain is set (#109)

Currently, when using cs_instance with an existing instance with a
specified root_disk_size, the module invocation fails when a domain
or account is specified, because the listVolume request does not
include these parameters.

A similar issue has recently been solved for projects (#90).

Author: olivierlemasle

plugins/modules/cs_instance.py

@@ -832,7 +832,14 @@ def update_instance(self, instance, start_vm=True):
         root_disk_size_changed = False
 
         if root_disk_size is not None:
-            res = self.query_api('listVolumes', type='ROOT', virtualmachineid=instance['id'], projectid=instance.get('projectid'))
+            args = {
+                'type': 'ROOT',
+                'virtualmachineid': instance['id'],
+                'account': instance.get('account'),
+                'domainid': instance.get('domainid'),
+                'projectid': instance.get('projectid'),
+            }
+            res = self.query_api('listVolumes', **args)
             [volume] = res['volume']
 
             size = volume['size'] >> 30