Steven Dake (stdake) wrote:
On 5/12/16, 2:04 PM, "Joshua Harlow"<harlo...@fastmail.com> wrote:
Hi there all-ye-operators,
I am investigating how to help move godaddy from rpms to a
container-like solution (virtualenvs, lxc, or docker...) and a set of
questions that comes up is the following (and I would think that some
folks on this mailing list may have some useful insight into the answers):
* Have you done the transition?
* How did the transition go?
* Was/is kolla used or looked into? or something custom?
* How long did it take to do the transition from a package based
solution (with say puppet/chef being used to deploy these packages)?
* Follow-up being how big was the team to do this?
I know I am not an operator, but to respond on this particular point
related to the Kolla question above, I think the team size could be very
small and still effective. You would want 24 hour coverage of your data
center, and a backup individual, which puts the IC list at 4 people. (3 8
hour shifts + 1 backup in case of illness/etc). Expect for these folks to
require other work, as once Kolla is deployed there isn't a whole lot to
do. A 64 node cluster is deployable by one individual in 1-2 hours once
the gear has been racked. Realistically if you plan to deploy Kolla I'd
expect that individual to want to train for 3-6 weeks deploying over and
over to get a feel for the Kolla workflow. Try it, I suspect you will
like it :)
Thanks for the info and/or estimates, but before I dive to far in I have
a question. I see that the following has links to how the different
services run under kolla:
http://docs.openstack.org/developer/kolla/#kolla-services
But one that seems missing from this list is what I would expect to be
the more complicated one, that being nova-compute (and libvirt and kvm).
Are there any secret docs on that (since I would assume it'd be the most
problematic to get right)?
If you had less rigorous constraints around availability then I'd expect
Godaddy to have, a Kolla deployment could likely be managed with as little
as half a person or less. Everything including upgrades is automated.
Along this line, do people typically plug the following into a local
jenkins system?
http://docs.openstack.org/developer/kolla/quickstart.html#building-container-images
Any docs on how people typically incorporate jenkins into the kolla
workflow (I assume they do?) anywhere?
Regards
-steve
* What was the roll-out strategy to achieve the final container solution?
Any other feedback (and/or questions that I missed)?
Thanks,
Josh
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