Andy, Actually this is something I had provided for as I think it's some nice low hanging fruit that provides *significant* value. While wary of scope creep I'm also wary of people having to implement multiple APIs for basic funcitonality that we could/should provide - basic storage/network manipulation being an obvious example. My proposed solution for this is that the cloud provider simply allow the workload to transparently authenticate to OCCI via its IP/MAC address and/or [virtual] interface. We could use a well known alias like "self" so as the machine can just pull down http://example.com/self (without needing to know its own UUID) and extract from that any state/configuration/introspection/other information it needs. Does that adequately meet this requirement? Sam On Mon, Apr 20, 2009 at 12:51 PM, Edmonds, AndrewX < andrewx.edmonds@intel.com> wrote:
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Are we considering the API around the interactions taking place between a running instance and the cloud?
[AE: ] we need to be wary here - when speaking of "cloud" contextualise it - in OCCI's case it's cloud infrastructure - bottom most layer.
I mean by that two types of interactions: 1- Hooks required at the end of the boot sequence to bootstrap the connection between a specific image instance and its cloud context.
[AE: ] The OVF format allows for this in its specification
2- The interface with the cloud environment to retrieve instance information such as hostname (private and public), instance specific user-data, etc.
[AE: ] This is outside the remit of OCCI. It's an internal concern of the provider's network ops and IP address management. Retrieval of user data might be seen as a concern within the platform layer.
I realise that this is heavily influenced by my work using EC2. The goal would be to improve images interoperability between clouds, setting aside for the moment the virtualisation technology used (which also bring other issues...).
Comments?
Cheers,
Meb
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