+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+.. NOTE::
+ This is a specification draft of a blueprint proposed for OpenStack Nova
+ Liberty. It was written by project member(s) and agreed within the project
+ before submitting it upstream. No further changes to its content will be
+ made here anymore; please follow it upstream:
+
+ * Current version upstream: https://review.openstack.org/#/c/169836/
+ * Development activity:
+ https://blueprints.launchpad.net/nova/+spec/mark-host-down
+
+ **Original draft is as follow:**
+