Creating a contract on the private API will allow the external APIs to be created and tested without needing a translation layer, even if contributory APIs were developed outside of the project (such as in AWSOME).
It is clearly better, architecturally, if the EC2/OCCI apis can access the internal apis directly. The RPC and database can be made to scale in Nova, but a REST endpoint won't be as reliable or scale as well. -- Eric Windisch On Monday, April 23, 2012 at 11:15 AM, Justin Santa Barbara wrote: > > What's the advantage of replacing the native EC2 compatibility layer with > > AWSOME from a user / operator point of view? > > Although I wasn't able to attend the design summit session, right now we have > two "native" APIs, which means we have two paths into the system. That is > poor software engineering, because we must code and debug everything twice. > Some developers will naturally favor one API over the other, and so > disparities happen. Today, both APIs are effectively using an undocumented > private API, which is problematic. We also can't really extend the EC2 API, > so it is holding us back as we extend OpenStack's capabilities past those of > the legacy clouds. > > With one native API, we can focus all our energies on making sure that API > works. Then, knowing that the native API works, we can build other APIs on > top through simple translation layers, and they will work also. Other APIs > can be built on top in the same way (e.g. OCCI) > > Which is a long way of saying the external approach will result in _all_ APIs > (OpenStack, EC2, OCCI etc) becoming more reliable, more secure and just more > AWSOME. > > Justin > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack@lists.launchpad.net (mailto:openstack@lists.launchpad.net) > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > >
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