[openstack-dev] [Neutron][LBaaS] Neutron LBaaS, Libra and "managed services"
geoff at geoffarnold.com
Tue Mar 25 14:07:52 UTC 2014
There are (at least) two ways of expressing differentiation:
- through an API extension, visible to the tenant
- though an internal policy mechanism, with specific policies inferred from tenant or network characteristics
Both have their place. Please don't fall into the trap of thinking that differentiation requires API extension.
Sent from my iPhone - please excuse any typos or "creative" spelling corrections!
> On Mar 25, 2014, at 1:36 PM, Eugene Nikanorov <enikanorov at mirantis.com> wrote:
> Hi John,
>> On Tue, Mar 25, 2014 at 7:26 AM, John Dewey <john at dewey.ws> wrote:
>> I have a similar concern. The underlying driver may support different functionality, but the differentiators need exposed through the top level API.
> Not really, whole point of the service is to abstract the user from specifics of backend implementation. So for any feature there is a common API, not specific to any implementation.
> There probably could be some exception to this guide line that lays in the area of admin API, but that's yet to be discussed.
>> I see the SSL work is well underway, and I am in the process of defining L7 scripting requirements. However, I will definitely need L7 scripting prior to the API being defined.
>> Is this where vendor extensions come into play? I kinda like the route the Ironic guy safe taking with a “vendor passthru” API.
> I may say that core team has rejected 'vendor extensions' idea due to potential non-uniform user API experience. That becomes even worse with flavors introduced, because users don't know what vendor is backing up the service they have created.
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