cinder/cinder/api/v2
whoami-rajat 32f1145b7d Remove multiatttach request parameter
The initial cinder design[1][2][3] allowed users to create mutliattach
volumes by spcifying the ``multiattach`` parameter in the request
body of volume create operation (``--allow-multiattach`` option in
cinderclient).

This functionality changed in Queens with the introduction of
microversion 3.50[4] where we used volume types to store
the multiattach capabilities. Any volume created with a multiattach
volume type will be a multiattach volume[5].

While implementing the new functionality, we had to keep backward
compatibility with the *old way* of creating multiattach volumes.
We deprecated the ``multiattach`` (``--allow-multiattach`` on cinderclient
side) parameter in the queens release[6][7].
We also removed the support of the ``--allow-multiattach`` optional
parameter from cinderclient in the train release[8] but the API
side never removed the compatibility code to disallow functionality
of creating multiattach volumes by using the ``multiattach``
parameter (instead of a multiattach volume type).

This patch removes the support of providing the ``multiattach``
parameter in the request body of a volume create operation and will
fail with a BadRequest exception stating the reason of failure
and how it can be fixed.

[1] https://blueprints.launchpad.net/cinder/+spec/multi-attach-volume
[2] https://review.opendev.org/c/openstack/cinder/+/85847/
[3] https://review.opendev.org/c/openstack/python-cinderclient/+/85856
[4] f1bfd9790d
[5] https://docs.openstack.org/cinder/latest/admin/volume-multiattach.html#how-to-create-a-multiattach-volume
[6] 94dbf5cce2
[7] adb141a262
[8] 3c1b417959

Depends-On: https://review.opendev.org/c/openstack/tempest/+/875372
Closes-Bug: 2008259

Change-Id: I0ece6e279048abcc04b3674108290a80eca6bd62
2023-03-06 08:58:59 +00:00
..
views Remove Block Storage API v2 2021-06-04 17:21:28 -04:00
__init__.py adding copy of v1 as v2 2012-11-21 21:26:40 -08:00
limits.py Remove six of dir cinder/api/* 2020-10-07 14:20:48 +08:00
snapshots.py Import HTTPStatus instead of http_client 2020-10-08 13:16:18 -04:00
volume_metadata.py Import HTTPStatus instead of http_client 2020-10-08 13:16:18 -04:00
volumes.py Remove multiatttach request parameter 2023-03-06 08:58:59 +00:00