Beispiel #1
0
    def save(self):
        """Save updates to this instance group."""

        updates = self.obj_get_changes()

        # NOTE(sbauza): We do NOT save the set of compute nodes that an
        # instance group is connected to in this method. Instance groups are
        # implicitly connected to compute nodes when the
        # InstanceGroup.add_members() method is called, which adds the mapping
        # table entries.
        # So, since the only way to have hosts in the updates is to set that
        # field explicitly, we prefer to raise an Exception so the developer
        # knows he has to call obj_reset_changes(['hosts']) right after setting
        # the field.
        if 'hosts' in updates:
            raise exception.InstanceGroupSaveException(field='hosts')

        # NOTE(yikun): You have to provide exactly one policy on group create,
        # and also there are no group update APIs, so we do NOT support
        # policies update.
        if 'policies' in updates:
            raise exception.InstanceGroupSaveException(field='policies')

        if not updates:
            return

        payload = dict(updates)
        payload['server_group_id'] = self.uuid

        db_group = self._save_in_db(self._context, self.uuid, updates)
        self._from_db_object(self._context, self, db_group)
        compute_utils.notify_about_server_group_update(self._context, "update",
                                                       payload)
Beispiel #2
0
    def save(self):
        """Save updates to this instance group."""

        updates = self.obj_get_changes()

        # NOTE(sbauza): We do NOT save the set of compute nodes that an
        # instance group is connected to in this method. Instance groups are
        # implicitly connected to compute nodes when the
        # InstanceGroup.add_members() method is called, which adds the mapping
        # table entries.
        # So, since the only way to have hosts in the updates is to set that
        # field explicitly, we prefer to raise an Exception so the developer
        # knows he has to call obj_reset_changes(['hosts']) right after setting
        # the field.
        if 'hosts' in updates:
            raise exception.InstanceGroupSaveException(field='hosts')

        if not updates:
            return

        # WRS:extension
        if 'metadetails' in updates:
            metadata = updates.pop('metadetails')
            updates.update({'metadata': metadata})

        payload = dict(updates)
        payload['server_group_id'] = self.uuid

        try:
            db_group = self._save_in_db(self._context, self.uuid, updates)
        except exception.InstanceGroupNotFound:
            db.instance_group_update(self._context, self.uuid, updates)
            db_group = db.instance_group_get(self._context, self.uuid)
        self._from_db_object(self._context, self, db_group)
        compute_utils.notify_about_server_group_update(self._context,
                                                       "update", payload)