cinder/releasenotes/notes/support-az-in-volumetype-8y...

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---
features: |
Now availability zone is supported in volume type as below.
* ``RESKEY:availability_zones`` now is a reserved spec key for AZ volume type,
and administrator can create AZ volume type that includes AZ restrictions
by adding a list of Az's to the extra specs similar to:
``RESKEY:availability_zones: az1,az2``.
* Extra spec ``RESKEY:availability_zones`` will only be used for filtering backends
when creating and retyping volumes.
* Volume type can be filtered within extra spec: /types?extra_specs={"key":"value"}
since microversion "3.52".