[openstack-dev] [magnum] Questions about Caas with Magnum

Spyros Trigazis strigazi at gmail.com
Wed Nov 22 08:29:26 UTC 2017

Hi Sergio,

On 22 November 2017 at 03:31, Sergio Morales Acuña <semoac at gmail.com> wrote:
> I'm using Openstack Ocata and trying Magnum.
> I encountered a lot of problems but I been able to solved many of them.

Which problems did you encounter? Can you be more specific? Can we solve them
for everyone else?

> Now I'm curious about some aspects of Magnum:
> ¿Do I need a newer version of Magnum to run K8S 1.7? ¿Or I just need to
> create a custom fedora-atomic-27? What about RBAC?

Since Pike, magnum is running kubernetes in containers on fedora 26.
In fedora atomic 27 kubernetes etcd and flannel are removed from the
base image so running them in containers is the only way.

For RBAC, you need 1.8 and with Pike you can get it. just by changing
one parameter.

> ¿Any one here using Magnum on daily basis? If yes, What version are you
> using?

In our private cloud at CERN we have ~120 clusters with ~450 vms, we are running
Pike and we use only the fedora atomic drivers.
Vexxhost is running magnum:

> ¿What driver is, in your opinion, better: Atomic or CoreOS? ¿Do I need to
> upgrade Magnum to follow K8S's crazy changes?

Atomic is maintained and supported much more than CoreOS in magnum.
There wasn't much interest from developers for CoreOS.

> ¿Any tips on the CaaS problem?¿It's Magnum Ocata too old for this world?

Magnum Ocata is not too old but it will eventually be since it misses the
capability of running kubernetes on containers. Pike allows this option and can
keep up with kubernetes easily.

> ¿Where I can found updated articles about the state of Magnum and it's
> future?

I did the project update presentation for magnum at the Sydney summit.


> Cheers
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