instance/node: fixed monitoring for missin vms

circle/vm/models/instance.py

@@ -286,8 +286,13 @@ class Instance(AclBase, VirtualMachineDescModel, TimeStampedModel):
 
     def vm_state_changed(self, new_state):
         try:
-            act = InstanceActivity.create(code_suffix='vm_state_changed',
+            act = InstanceActivity.create(
+                code_suffix='monitor_event_%s' % new_state,
                 instance=self)
+            if new_state == "STOPPED":
+                self.vnc_port = None
+                self.node = None
+                self.save()
         except ActivityInProgressError:
             pass  # discard state change if another activity is in progress.
         else:

circle/vm/models/node.py

@@ -194,6 +194,8 @@ class Node(TimeStampedModel):
             except KeyError:
                 logger.info('Node %s update: instance %s missing from '
                             'libvirt', self, i['id'])
+                # Set state to STOPPED when instance is missing
+                self.instance_set.get(id=i['id']).vm_state_changed('STOPPED')
             else:
                 if d != i['state']:
                     logger.info('Node %s update: instance %s state changed '