nova/releasenotes/notes/bp-placement-req-filter-isolated-aggregates-26f34213ca757b5a.yaml
shilpa 1bbef754fb Docs for isolated aggregates request filter
Added reference documentation and release note to explain how filtering
of hosts by isolate aggregates works.

Change-Id: I8d8086973039308f9041a36463a834b5275708e3
Implements: blueprint placement-req-filter-forbidden-aggregates
2019-09-12 16:56:32 -05:00

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YAML

---
features:
- |
Blueprint `placement-req-filter-forbidden-aggregates`_ adds the ability
for operators to set traits on aggregates which if not requested in flavor
extra specs or image properties will result in disallowing all hosts
belonging to those aggregates from booting the requested instances. This
feature is enabled via a new config option
``[scheduler]/enable_isolated_aggregate_filtering``.
See `Filtering hosts by isolated aggregates`_ for more details.
.. _placement-req-filter-forbidden-aggregates: https://specs.openstack.org/openstack/nova-specs/specs/train/approved/placement-req-filter-forbidden-aggregates.html
.. _Filtering hosts by isolated aggregates: https://docs.openstack.org/nova/latest/reference/isolate-aggregates.html