Open Stack

I made the following some time ago,

https://wiki.openstack.org/wiki/RunInstanceWorkflows

https://wiki.openstack.org/w/images/a/a9/Curr-run-instance.png

That may be useful for u, (it may also not be that up to date),

Cheers,

Josh

Dhvanan Shah wrote:
> Hi,
>
> I'm trying to trace a request made for an instance and looking at the
> flow in the code.
> I'm just trying to understand better how the request goes from the
> dashboard to the nova-api , to the other internal components of nova and
> to the scheduler and back with a suitable host and launching of the
> instance.
>
> i just want to understand as to how the request goes from the api-call
> to the nova-api and so on after that.
> I have understood the nova-scheduler and in that, the filter_scheduler
> receives something called request_spec that is the specifications of the
> request that is made, and I want to see where this comes from. I was not
> very successful in reverse engineering this.
>
> I could use some help as I want to implement a scheduling algorithm of
> my own but for that I need to understand how and where the requests come
> in and how the flow works.
>
> If someone could guide me as to where i can find help or point in some
> direction then it would be of great help.
> --
> Dhvanan Shah
>
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