[openstack-dev] [ironic] Support for single OpenStack system supporting VM and Baremetal Instances simultaneously ?
dtantsur at redhat.com
Mon Oct 23 08:51:28 UTC 2017
On 10/20/2017 09:25 PM, Waines, Greg wrote:
> We are in the process of integrating OpenStack Ironic into our own OpenStack
Nice to hear :)
> Is there support for a single OpenStack system supporting VM and Baremetal
> Instances simultaneously ? ( in NEWTON ? in PIKE ? )
> I BELIEVE the answer is yes.
> BUT can someone confirm ?
Yes, we've been doing it with TripleO starting with Newton, but it was supported
even earlier. Here is what we do:
> And then, if YES,
> THEN in such a system
> ·i know there is a nova-compute for each COMPUTE NODE, and
> ·i know there is a nova-compute for ALL the IRONIC NODEs
Not exactly - you can have many nova-compute instances for ironic, the nodes
will be spread over them via a hash ring.
> oIs there still ONLY A SINGLE nova-scheduler ?
> oi.e. which, based on the baremetal extraspec, schedules over the COMPUTE NODES
> or the IRONIC NODES ?
What we do in TripleO is placing nova-computes for ironic on controller nodes (3
of them usually). Virtual nova-computes, of course, go to compute nodes. Then we
can add them to different host aggregates, thus separating ironic from vms - see
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