Hi everyone, Is there any up-to-date functionality in nova / neutron which allows to run some additional code triggered by changes in instance like creating or deleting an instance? I see that nova hooks are deprecated as of Nova 13: https://github.com/openstack/nova/blob/master/nova/hooks.py#L19 While it's hard to find the reason for this deprecation, I also struggle to find if there's any up-to-date alternative to those hooks. Thanks