On Thu, Jul 12, 2012 at 4:36 PM, Vishvananda Ishaya <vishvana...@gmail.com> wrote:
> Upgrading has been painful and we are striving to improve this process > as much as possible. I think that this needs to be a core value of the developer community, if Openstack is going to become pervasive. > I would like to take this a bit further. Documentation is a great first step, > but I would actually like to have an actual Jenkins test that does the upgrade > from essex to Folsom with live resources created. I think this the only way > that we can be sure that the upgrade is working properly. I don't want to dampen enthusiasm around this issue at all, but I think this goal is pretty difficult to achieve, just due to the existing complexity in real deployments. I'm also worried that this would take away from a high level upgrade documentation goal. > > The first version of this doesn't even have to be on a full cluster. I'm > thinking > something as simple as: > > * configure devstack to checkout stable/essex from all of the projects > * run the system, launch some instances and volumes > * terminate the workers > * upgrade all of the code to folsom > * do any manual upgrade steps (nova-manage db sync, cinder migrate, etc.) > * run all the workers > * make sure the existing data still works and new api commands run > > The manual upgrade steps should be contained in a single script so that the > distress can use it to help make their package upgrades and deployers can > use it for reference when upgrading their clusters. > > This is something we can start working on today and we can run after each > commit. Then we will immediately know if we do something that breaks > upgradability, and we will have a testable documented process for upgrading. Having a testable process for upgrading is definitely a start. I guess that I am more or less resigned to upgrades being pretty effort intensive, at least in the near term, so my personal bias is towards getting pretty extreme documentation done first. -nld _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
