On 31 October 2017 at 07:13, haad <haaaad at gmail.com> wrote: > Hi, > > We have an OSA installation with 10-12 compute nodes running Mitaka on > Ubuntu 16.04. As initially we have not prepared any long term update > strategy we would like to create one now. Plan would be to upgrade it to new > OSA release(Ocata/Pike/Queens) in near future. > > Our original plan was to update management/networking/backend at once by > using rolling updates to newer release and then upgrade compute nodes one by > one to new release.. I think that [2] provides a general upgrade manual. Is > there any document describing how are different OSA releases compatible ? Is > there any policy in place about backward compatibility ? > > > > [1] https://etherpad.openstack.org/p/osa-newton-xenial-upgrade > [2] https://wiki.openstack.org/wiki/Upgrade-with-minimal-downtime > > -- > > > Regards. > > Adam > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > Hello, I'd advise you to follow the standard OpenStack-Ansible path, which is upgrading from Mitaka to Newton, then do your ubuntu upgrade to xenial. >From Newton onwards, we have code taking care of the rolling part of the upgrade, which should help you getting to Pike, after a series of upgrades (N->O->P) under ubuntu 16.04. Best regards, Jean-Philippe Evrard (evrardjp)