[Openstack] Migrate instances/tenants between clouds

Robert Collins robertc at robertcollins.net
Thu Oct 24 22:03:16 UTC 2013

On 25 October 2013 10:20, Shane Johnson <sdj at rasmussenequipment.com> wrote:

> But doesn't that responsibility lie with the package maintainers for
> Openstack in each distro?

No. The responsibility for making it possible to upgrade in place
*reliably* and *with confidence* is an entirely upstream problem.
Rigorous backwards compatibility, rigorous testing for performance
regressions, reliable upgrade paths, being able to achieve low/no
downtime on the cloud during upgrade. All upstream problems.

Putting the code into packages and making the packages install well is
a distribution problem. For distributions with orchestration code tied
into them, orchestrating the upgrade is also a distribution problem
(e.g. RDO and UO both offer fully orchestrated deployments, so any
upgrade orchestration will be bundled there).


Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Converged Cloud

More information about the Openstack mailing list