vm: fix screenshot

circle/dashboard/views.py

@@ -2822,8 +2822,7 @@ class InterfaceDeleteView(DeleteView):
 def get_vm_screenshot(request, pk):
     instance = get_object_or_404(Instance, pk=pk)
     try:
-        image = instance.screenshot(instance=instance,
-                                    user=request.user).getvalue()
+        image = instance.screenshot(user=request.user).getvalue()
     except:
         # TODO handle this better
         raise Http404()

circle/vm/models/instance.py

@@ -949,7 +949,7 @@ class Instance(AclBase, VirtualMachineDescModel, StatusModel, OperatedMixin,
         return merged_acts
 
     def get_screenshot(self, timeout=5):
-        queue_name = self.get_remote_queue_name('vm')
+        queue_name = self.get_remote_queue_name("vm", "fast")
         return vm_tasks.screenshot.apply_async(args=[self.vm_name],
                                                queue=queue_name
                                                ).get(timeout=timeout)

circle/vm/operations.py

@@ -594,7 +594,7 @@ class ScreenshotOperation(InstanceOperation):
         if self.instance.status not in ['RUNNING']:
             raise self.instance.WrongStateError(self.instance)
 
-    def _operation(self, instance, user):
+    def _operation(self):
         return self.instance.get_screenshot(timeout=20)