nova/releasenotes/notes/allocation_candidates_suppo...

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YAML

---
features:
- |
Add support, in a new placement microversion 1.21, for the ``member_of``
query parameter, representing one or more aggregate UUIDs. When supplied,
it will filter the returned allocation candidates to only those
resource_providers that are associated with ("members of") the specified
aggregate(s). This parameter can have a value of either a single aggregate
UUID, or a comma-separated list of aggregate UUIDs. When specifying more
than one aggregate, a resource provider needs to be associated with at
least one of the aggregates in order to be included; it does not have to be
associated with all of them. Because of this, the list of UUIDs must be
prefixed with ``in:`` to represent the logical ``OR`` of the selection.