Install controller computehci on 3 nodes with tripleO

Giulio Fidente gfidente at
Mon Sep 20 16:25:13 UTC 2021

On 9/20/21 17:45, wodel youchi wrote:
> Hi,
> Is it technically possible to install openstack tripleO on 3 nodes, such 
> that all 3 nodes play the roles of controller compute and ceph storage 
> (hci) at the same time, with replication and HA and all?

I think it could be done by creating a custom role which merges the 
Controller and ComputeHCI services together but it has important 
implications; for example, should pacemaker fence a node, that would 
kill the workload *and* the osds hosted on that node

this can be acceptable or not, depending on expectations and other 
possible mitigations I guess
Giulio Fidente

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