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From Rodric Rabbah <rod...@gmail.com>
Subject Re: factoring out "runtimes" into deployment configuration
Date Sun, 05 Mar 2017 19:58:50 GMT
I considered that but it would be at odds with actions that have no images - in particular
sequences and other combinators in the future. 

-r

> On Mar 5, 2017, at 2:52 PM, Alex Glikson <GLIKSON@il.ibm.com> wrote:
> 
> Good direction!
> 
> How about taking this one step further and removing "kind" from the API 
> altogether, leaving just "image", "code" (text or binary) and "main"? We 
> could manage the kind-->image mapping on the client side.
> 
> Regards,
> Alex
> 
> 
> 
> 
> From:   Rodric Rabbah <rodric@gmail.com>
> To:     dev@openwhisk.incubator.apache.org
> Date:   05/03/2017 06:39 PM
> Subject:        factoring out "runtimes" into deployment configuration
> 
> 
> 
> I've been thinking about how we can add more action runtimes more easily -
> without changing the backend (API, controller, invoker, CLI). One way I'm
> leaning toward and started prototyping to get a better understanding of 
> the
> feasibility is to strip all runtime types from the backend (and CLI) and
> encode the information about what action runtimes the system supports
> through configuration parameters.
> 
> This will make it possible to decouple deploying the core components from
> managing the action runtime images. An example of encoding the runtime
> information in a deployment configuration is
> https://github.com/openwhisk/openwhisk/pull/1948.
> 
> In support of this general direction (even if we settle on a different
> approach), I have increasingly flattened the "Exec" type hierarchy in the
> backend[1-3]
> 
> [1] https://github.com/openwhisk/openwhisk/pull/1938
> [2] https://github.com/openwhisk/openwhisk/pull/1942
> [3] https://github.com/openwhisk/openwhisk/pull/1911
> 
> A sketch of how to use the runtime manifest can be seen in this WIP 
> commit:
> https://github.com/rabbah/openwhisk/commit/a8890abe51a3e7e6a34f96a46798de660583e36f
> 
> 
> I can see how using this we can add new versions of Node.js, python:3, and
> other handy images by curating a list of these in a separate process.
> 
> Feedback, as always, solicited and appreciated.
> 
> -r
> 
> 
> 
> 

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