Have better hardware service levels

[Angus Salkeld]

The idea here is to extend the concept of flavours so that you could say:

I need an instance that is on a host with the following hardware (cpu/mem perf/graphics card/etc).

So if you are doing intensive work you don't waist time having to test for the underlying hardware.

[Steven Dake (sdake)]

recommend filing as a blueprint. Once that is done, please close this bug as invalid.

[Dimitri Mazmanov (sorantis)]

I have written this as a blueprint, that I'm intending to submit soon. The blueprint also contains a solution.

[Dimitri Mazmanov (sorantis)]

Here's a blueprint https://blueprints.launchpad.net/heat/+spec/dynamic-flavors

[Pavlo Shchelokovskyy (pshchelo)]

I wonder if this use case can be already served with nova scheduler hints [1]

[1] http://docs.openstack.org/developer/nova/devref/filter_scheduler.html

[Dimitri Mazmanov (sorantis)]

Pavlo, not sure it's the same use case. The nova scheduler makes decisions on instance placement. What if there's no flavor that can answer the application's constraints?
From the scheduler page: "If it turns up, that it can’t find candidates for the next instance, it means that there are no more appropriate hosts where the instance could be scheduled."