cinder/releasenotes/notes/supported-drivers-9c95dd2378cd308d.yaml
Walter A. Boring IV a227bf440e Add new supported driver checks
This patch adds the new mechanism for tagging drivers as supported
or not as discussed in the TC mailing list post:
http://lists.openstack.org/pipermail/openstack-dev/2016-August/101589.html

This adds the following in place:
1) add new supported flag in every driver

2) When a driver no longer meets the Cinder community testing standards
   the driver supported flag will be set to False.

3) When the volume manager starts it checks to see if the driver is
   flagged not supported.  If the supported flag is False, then the
   volume manager will log an error and then check to see if the driver
   section configuration setting of 'enable_unsupported_driver = True'.
   If the conf setting is not enabled, the driver will not be started.

   a) When the driver maintainer conforms to the community testing
      standards, then a follow up patch will be submitted to re-enable
      the supported flag.

   b) If the driver maintainer continues to not support the community
      testing standards, then the Cinder community will revisit
      removing the driver in the following release.

   c) If the driver section in cinder.conf has the
      enable_unsupported_driver set, then the volume manager will start
      the driver, but log a warning on every driver call saying the
      driver isn't supported and may be removed in the future.

Implements: blueprint supported-drivers
Change-Id: I19a60df85d5fb205fc63e700475ae20b86309c1e
2016-08-23 15:20:16 +00:00

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---
features:
- Added supported driver checks on all drivers.