Open Stack

The neutron API now supports compare and swap updates with an If-Match
header so the race condition can be avoided.
https://bugs.launchpad.net/neutron/+bug/1703234



On Fri, Jun 1, 2018, 04:57 Rabi Mishra <ramishra at redhat.com> wrote:

>
> On Fri, Jun 1, 2018 at 3:57 PM, Lajos Katona <lajos.katona at ericsson.com>
> wrote:
>
>> Hi,
>>
>> Could somebody help me out with Neutron's Extraroute support in Hot
>> templates.
>> The support status of the Extraroute is support.UNSUPPORTED in heat, and
>> only create and delete are the supported operations.
>> see:
>> https://github.com/openstack/heat/blob/master/heat/engine/resources/openstack/neutron/extraroute.py#LC35
>>
>>
> As I see the unsupported tag was added when the feature was moved from the
>> contrib folder to in-tree (https://review.openstack.org/186608)
>> Perhaps you can help me out why only create and delete are supported and
>> update not.
>>
>>
> I think most of the resources when moved from contrib to in-tree are
> marked as unsupported. Adding routes to an existing router by multiple
> stacks can be racy and is probably the reason use of this resource is not
> encouraged and hence it's not supported. You can see the discussion in the
> original patch that proposed this resource
> https://review.openstack.org/#/c/41044/
>
> Not sure if things have changed on neutron side for us to revisit the
> concerns.
>
> Also it does not have any update_allowed properties, hence no
> handle_update(). It would be replaced if you change any property.
>
> Hope it helps.
>
>
>
>> Thanks in advance for  the help.
>>
>> Regards
>> Lajos
>>
>>
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>
>
>
> --
> Regards,
> Rabi Mishra
>
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