nova/releasenotes/notes/add-host-and-hypervisor-hos...

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---
features:
- |
API microversion 2.74 adds support for specifying optional ``host``
and/or ``hypervisor_hostname`` parameters in the request body of
``POST /servers``. These request a specific destination host/node
to boot the requested server. These parameters are mutually exclusive
with the special ``availability_zone`` format of ``zone:host:node``.
Unlike ``zone:host:node``, the ``host`` and/or ``hypervisor_hostname``
parameters still allow scheduler filters to be run. If the requested
host/node is unavailable or otherwise unsuitable, earlier failure will
be raised.
There will be also a new policy named
``compute:servers:create:requested_destination``. By default,
it can be specified by administrators only.