Hi Fabio
On Thu, 4 Oct 2018 at 23:02 Fabio Abreu <fabioabreureis@xxxxxxxxx> wrote:
Hi Cephers,
I have a little doubt about the migration of Jewel version in the MAAS / JUJU implementation scenario .
Could someone has the same experience in production environment?
I am asking this because we mapping all challenges of this scenario.
The ceph-mon and ceph-osd charms for Juju support upgrading between Ceph releases; the upgrade is a rolling upgrade, orchestrated through keys managed via the Ceph MON cluster itself.
The upgrade triggers are based around the Ubuntu Cloud Archive pockets that also host Ceph (see [0]), so its possible to online upgrade using the charms from:
firefly -> hammer
hammer -> jewel
jewel -> luminous
we're working on the upgrade from luminous to mimic at the moment (but that should not be a heavy lift so should land real-soon-now).
If you are currently deployed on Xenial (which shipped with Jewel), you can upgrade directly to Luminous by re-configuring the charms:
juju config ceph-mon source=cloud:xenial-pike
once that has completed (juju status output will tell you when):
juju config ceph-osd source=cloud:xenial-pike
I'd recommend testing the upgrade in some sort of pre-production testing environment first!
HTH
James
(ceph-* charm contributor and user)
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