[openstack-dev][magnum] Using Fedora Atomic 29 for k8s cluster

Mohammed Naser mnaser at vexxhost.com
Fri Aug 23 14:58:11 UTC 2019


On Thu, Aug 22, 2019 at 11:46 PM Feilong Wang <feilong at catalyst.net.nz> wrote:
>
> Hi all,
>
> At this moment, Magnum is still using Fedora Atomic 27 as the default image in devstack. But you can definitely use Fedora Atomic 29 and it works fine. But you may run into a performance issue when booting Fedora Atomic 29 if your compute host doesn't have enough entropy. There are two steps you need for that case:
>
> 1. Adding property hw_rng_model='virtio' to  Fedora Atomic 29 image
>
> 2. Adding property hw_rng:allowed='True' to flavor, and we also need hw_rng:rate_bytes=4096 and hw_rng:rate_period=1 to get a reasonable rate limit to avoid the VM drain the hypervisor.
>
> We are working on a patch for Magnum devstack to support FA29 out of box. Meanwhile, we're starting to test Fedora CoreOS 30. Please popup in #openstack-containers channel if you have any question. Cheers.

Neat!  I think it's important for us to get off Fedora Atomic given
that RedHat seems to be ending it soon.  Is the plan to move towards
Fedora CoreOS 30 or has there been consideration of using something
like an Ubuntu-base (and leveraging something like kubeadm+ansible to
drive the deployment?)-

>
>
> --
> Cheers & Best regards,
> Feilong Wang (王飞龙)
> --------------------------------------------------------------------------
> Head of R&D
> Catalyst Cloud - Cloud Native New Zealand
> Tel: +64-48032246
> Email: flwang at catalyst.net.nz
> Level 6, Catalyst House, 150 Willis Street, Wellington
> --------------------------------------------------------------------------



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