[occi-wg] Nouns and Verbs (was: Syntax of OCCI API)

[Thijs Metsch]

Hi,

Can we put this in the wiki and may also add a new page about this topic
there? so the discussion threads won't get that long?

Didn't want to interrupt though :-), All the best,

-Thijs


On Fri, 2009-04-17 at 11:31 +0100, Edmonds, AndrewX wrote:
> Nice J 
> 
> You have me convinced on dropping of explicit physical/virtual
> attributes and bounding what is provisioned to a customer with an SLA.
> I would certainly see that inclusion of “machine readable” SLAs that
> can be processed by a client and monitored & verified via the
> Performance Monitoring (PM) be hugely beneficial – not only from the
> provider point of view (optimisation etc) but also from the customer
> point of view (assurance, accountability etc). There would certainly
> be on going work here in the OGF WS-Agreement WG that could possibly
> provide some input on this.
> 
>  
> 
> I’ve put the nouns and verbs into a very simple UML diagram (attached
> – will place on wiki if people are comfortable with expressing
> {noun{verb{attribute}}} OCCI vectors)
> 
>  
> 
> HTH.
> 
>  
> 
> Andy
> 
>  
> 
> From: Sam Johnston [mailto:samj at samj.net] 
> Sent: 17 April 2009 10:45
> To: Edmonds, AndrewX
> Cc: Andre Merzky; Chris Webb; occi-wg at ogf.org
> Subject: Nouns and Verbs (was: Syntax of OCCI API)
> 
> 
>  
> 
> Ok so moving right along...
> 
> I like the "resource" approach (thanks Andy) and it fits well with the
> single entry point w/ search style (which in turn allows for
> arbitrarily simple and complex environments ranging from 1 to many
> millions of resources). These have a category/type (e.g. server,
> network, storage) and content depending on that. You can of course ask
> for just one type or another (e.g. query "servers" but not networks or
> storage) and we can do a simple optimisation to bring this into line
> with existing APIs:
> 
> http://example.com/servers -> http://example.com/-/server
> http://example.com/networks -> http://example.com/-/network
> http://example.com/storage -> http://example.com/-/storage
> 
> I specifically don't like the idea of differentiating between physical
> and virtual resources (the whole point is that you can't, or at least
> don't need to, know the difference), but that's ok because I don't
> think it's necessary. If I'm dealing with a "server" I don't care if
> it's delivered as a slice, a VM or a physical machine so long as it
> meets my service level agreement.... this is details for the
> implementor and one of the areas where we need to allow them to
> innovate.
> 
> Ok so nouns and verbs (ignoring CRUD which is common anyway):
> 
> server: 
>  - start
>  - stop
>  - restart
>  - deploy/undeploy? (comes back to persistent vs ephemeral etc.)
>  - clone/snapshot?
> network:
>  - start (aka up)
>  - stop (aka down)
> storage:
>  - start (aka online)
>  - stop (aka offline)
>  - snapshot?
>  - backup?
> others?
> 
> Sam
> 
> ---------- Forwarded message ----------
> From: Edmonds, AndrewX <andrewx.edmonds at intel.com>
> Date: Fri, Apr 17, 2009 at 11:10 AM
> Subject: Re: [occi-wg] Syntax of OCCI API
> To: Andre Merzky <andre at merzky.net>, Chris Webb
> <chris.webb at elastichosts.com>
> Cc: "occi-wg at ogf.org" <occi-wg at ogf.org>
> 
> 
> Exactly my point in my last mail, Andre.
> If we can even begin to suggest on the nouns that'll be a big help. In
> the wiki we have the central entity to be a "Resource" (in fact we
> could name this as Noun to focus discussion - thoughts? Sam?. That
> "Resource"/"Noun" can be abstractly sub-classed as virtual or physical
> and beneath that concrete entities could be "Server", "VM" and in the
> case of extension (re: Randy), "Loadbalancer".
> 
> Andy
> 
> 
> -----Original Message-----
> From: occi-wg-bounces at ogf.org [mailto:occi-wg-bounces at ogf.org] On
> Behalf Of Andre Merzky
> Sent: 17 April 2009 10:03
> To: Chris Webb
> Cc: occi-wg at ogf.org
> Subject: Re: [occi-wg] Syntax of OCCI API
> 
> 
> Once we get the noun/verb/attribute part settled, there is
> no harm in doing an ini and a key/val binding.  In fact, a
> translator would be trivial...
> 
> You can argue endlessly about the better format: there are
> too many PROs and CONs for both of them to come to an
> conclusive answer, IMHO.
> 
> My $0.02, Andre.
> 
> 
>  
> 
> 
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-- 
Thijs Metsch                        Tel: +49 (0)941 3075-122 (x60122)
http://blogs.sun.com/intheclouds
Software Engineer Grid Computing
Sun Microsystems GmbH
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