[openstack-dev] [Glance] Need to revert "Don't enable all stores by default"

Sean Dague sean at dague.net
Wed Mar 12 13:40:58 UTC 2014

On 03/12/2014 09:01 AM, Flavio Percoco wrote:
> On 11/03/14 16:25 -0700, Clint Byrum wrote:
>> Hi. I asked in #openstack-glance a few times today but got no response,
>> so sorry for the list spam.
>> https://review.openstack.org/#/c/79710/
>> This change introduces a backward incompatible change to defaults with
>> Havana. If a user has chosen to configure swift, but did not add swift
>> to the known_stores, then when that user upgrades Glance, Glance will
>> fail to start because their swift configuration will be invalid.
>> This broke TripleO btw, which tries hard to use default configurations.
>> Also I am not really sure why this approach was taken. If a user has
>> explicitly put swift configuration options in their config file, why
>> not just load swift store? Oslo.config will help here in that you can
>> just add all of the config options but not actually expect them to be
>> set. It seems entirely backwards to just fail in this case.
> Here's an attempt to fix this issues without reverting the patch.
> Feedback appreciated.
> https://review.openstack.org/#/c/79935/

ACK. Looks pretty good. You might want to consider using one of the oslo
deprecation functions to make it consistent on the deprecation side.


Sean Dague
Samsung Research America
sean at dague.net / sean.dague at samsung.com

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