[openstack-dev] [Neutron] "binding information" for networks

Antoni Segura Puimedon toni+openstackml at midokura.com
Thu Aug 20 12:24:40 UTC 2015


On Wed, Aug 19, 2015 at 10:24 PM, Assaf Muller <amuller at redhat.com> wrote:

>
>
> On Wed, Aug 19, 2015 at 2:34 PM, Gal Sagie <gal.sagie at gmail.com> wrote:
>
>> Hello all,
>>
>> Recently i have came across two use cases that having "binding"
>> information, or metadata
>> for networks can be useful. (similar to the port binding profile for that
>> matter)
>>
>> For example:
>>
>> 1) In project Kuryr we want to have a binding information which maps the
>> Neutron network
>>     to docker network (And we might want to do it prior to the docker
>> network being created,
>>     that is assign a network that is ready to be attached) so this field
>> also needs to be editable
>>     (just like the port binding profile)
>>
>> 2) For multi site OpenStack (multi cloud) use cases we might want to
>> share information which
>>     binds logically same network that is created at each OpenStack cloud
>> site (and hence the ID's
>>     are different).
>>     (Something like this could be useful for project Tricircle for
>> example)
>>
>> 3) Use cases for multi controllers environments? (each controller manage
>> different networks?)
>>
>> I believe adding such optional field to the network API is really low
>> risk due to its being optional
>> and i believe other use cases can be found to leverage it.
>>
>
> I wonder if we should just add a key/pair tuples "tags" or "metadata"
> generic field instead. There's
> been similar requests floating about that could also use a place to dump
> their data in.
>

I think something similar was proposed as part of QoS but it was decided
against. I personally think
that having metadata for the entities (networks and ports) makes a lot of
sense.


>
>
>>
>> Feel free to share ideas/comments.
>>
>> If there are no strong objections to it, i will add an RFE/Spec to add
>> this ability.
>>
>> Thanks
>> Gal.
>>
>>
>>
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>>
>
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