[openstack-ansible] Compute nodes with mixed system releases

Gilles Mocellin gilles.mocellin at nuagelibre.org
Wed Feb 27 21:55:13 UTC 2019

Le mercredi 27 février 2019, 21:54:26 CET Mohammed Naser a écrit :
> Hi Gilles,
> You will run into a few interesting issues such as how we build our
> repo based on the OS that the controller runs which means that there
> will be no pre-built venvs for those systems.

Ah ! I forget this repo conainer...
> I'd strongly suggest sticking to 16.04 and upgrading it all at once,
> for the other issues that you mentioned as well.

I'll do that for now, but I really wonder how to upgrade all at once when we 
have lots of servers.

I wonder which server OS is the base for the OS venvs to build in the repo 
container. I'll check, but if someone already knows...

> Thanks,
> Mohammed

Thank you Mohammed.

> On Tue, Feb 26, 2019 at 5:58 PM Gilles Mocellin
> <gilles.mocellin at nuagelibre.org> wrote:
> > Hello,
> > 
> > I can ot find a real answer in the OpenStack-Ansible docs.
> > Can I add Ubuntu 18.04 compute nodes to my actueal all Ubuntu 16.04
> > cluster ?
> > 
> > Ubuntu 18.04 needs Rocky, so I will first migrate from Queens to Rocky.
> > But then, do I need to stick to 16.04 and plan an overall upgrade after ?
> > 
> > Of course, I understand that mixing Ubuntu release, will also mix kernel
> > and qemu versions and can pose problems, for migrations for example.

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