Open Stack

Hi!

I just forgot to ask about the best way for discussion: what will it be? We
have an IRC channel #murano at FreeNode, so you can find someone from our
team here. The best way probably will be a Google hangout or Webex meeting
for a live discussion and document sharing.


On Wed, Oct 9, 2013 at 12:44 AM, Timur Sufiev <tsufiev at mirantis.com> wrote:

> Hello!
>
>
> I am an engineer from Murano team. Murano is an OpenStack project built
> around Windows components deployment. Currently we (Murano team) are
> working on improving Murano architecture to fit better in OpenStack
> ecosystem and reuse more functionality from the other projects. As part of
> that we’ve realized that we need task execution workflow. We see a lot of
> value in Convection proposal for what we need as well as OpenStack users in
> general.
>
> *
> *
>
> We have some ideas around possible design approach as well as bits and
> pieces that we can potentially reuse from the existing codebase. We would
> like to start contributing to Convection and get it moving forward. As the
> first step it would be good to start a discussion with you on how to unify
> our vision and start the development.
>
> *
> *
>
> Here are some of the areas that we would like to discuss:
>
>    -
>
>    Workflow definition proposal. We propose YAML as a task workflow
>    definition format. Each node in the workflow has state, dependencies and an
>    action associated with it. Action is defined as a generic instruction to
>    call some other component using a specific transport (e.g. RabbitMQ).
>    Dependency means “in order to execute this task it is required that some
>    other tasks be in a certain state”.
>    -
>
>    Workflow definitions API proposal. We are discussing and prototyping
>    an API for uploading workflow definitions, modifying them, adding the
>    sources triggering new tasks to be scheduled for execution and so forth. We
>    propose to adapt this API to Convection needs and possible rewrite and
>    extend it.
>    -
>
>    Task dependencies resolution engine proposal. We already have a
>    generic engine which processes workflows. It is essentially a parallel
>    multithreaded state machine. We propose to use this engine as a basis for
>    Convection and extend it by adding external event sources like timers and
>    Ceilometer alarms.
>
>
> --
> Timur Sufiev
>



-- 
Timur Sufiev
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