def batch_add_instances(self, group, instances):
"""Batch add instances for auto scaling group
:param group: The group which instances will be added to,
The value can be the ID of a group or a
:class:`~openstack.auto_scaling.v2.group.Group` instance.
:param list instances: The list item value can be ID of an instance
or a :class:`~openstack.auto_scaling.v2.instance.Instance` instance
"""
group = self._get_resource(_group.Group, group)
instance = _instance.Instance(scaling_group_id=group.id)
return instance.batch_add(self._session, instances)
def batch_remove_instances(self, group, instances, delete_instance=False):
"""Batch remove instances of auto scaling group
precondition:
* the instance must in ``INSERVICE`` status
* after batch remove the current instance number of auto scaling group
should not be less than min instance number
* The own auto scaling group should not in scaling status
:param group: The group of instances that to be removed, The value can
be the ID of a group or a
:class:`~openstack.auto_scaling.v2.group.Group` instance.
:param list instances: The list item value can be ID of an instance
or a :class:`~openstack.auto_scaling.v2.instance.Instance` instance
:param bool delete_instance: When set to ``True``, instance will be
deleted after removed
"""
group = self._get_resource(_group.Group, group)
instance = _instance.Instance(scaling_group_id=group.id)
return instance.batch_remove(self._session,
instances,
delete_instance=delete_instance)