[openstack-dev] [OSC][ironic][mogan][nova] mogan and nova co-existing

Zhenguo Niu niu.zglinux at gmail.com
Wed May 31 02:36:28 UTC 2017

On Wed, May 31, 2017 at 10:20 AM, Ed Leafe <ed at leafe.com> wrote:

> On May 30, 2017, at 9:08 PM, Zhenguo Niu <niu.zglinux at gmail.com> wrote:
> > There would be a collision if nova and mogan consume the same ironic
> nodes cluster, as both of them will see all the available node resources.
> So if someone wants to choose mogan for baremetal compute management, the
> recommended deployment is Mogan+Ironic for baremetals and Nova+Libvirt for
> VMs, this way we treat baremetals and vms as different compute resources.
> In a cloud with both vms and baremetals, it's more clear to have different
> set of APIs to manage them if users really care about what resources they
> got instead of just the performance. We also create a mogan horizon plugin
> which adds separated baremetal servers panel[1].
> So Mogan does not use the placement service for tracking resources?

as placement is not splitted out from nova now, and there would be users
who only want a baremetal cloud, so we don't add resources to placement
yet, but it's easy for us to turn to placement to match the node type with
mogan flavors.

> -- Ed Leafe
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Best Regards,
Zhenguo Niu
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