Re: [atomic-devel] ARM builds?

[Matt Micene <nzwulfin gmail com>]

Other thoughts?

Kubernetes labels and selectors?  You could attach a label to each node that expresses architecture and a matching selector to the pod.  This would allow you to do it, assuming of course that there's no API wierdness between the scheduler and node if they're running on different archs.

Labels and selectors are completely arbitrary, so you could extend that to match OS (Linux vs Windows), arch, location, etc.  Right now, this is used for things like DR regions, CPU, etc.

Overall as of K8S 1.2 the implementation is moving to node affinity instead of the current model, but the idea is the same.

- Matt M

On Fri, Aug 26, 2016 at 11:24 AM, Jon Stanley <jonstanley gmail com> wrote:

On Fri, Aug 26, 2016 at 10:58 AM, Richard Henwood
<Richard Henwood arm com> wrote:

> After briefly chatting with Josh at RH summit, the short term goal is 'build Atomic Host for AArch64'.
> Following that, I guess there might be some work to make Atomic Registry 'do the right thing'? And orchestration 'do the right thing'?

Will kube schedule a container on a host that can't run it? i.e. a
container with x86 code on a AArch64 host, or vice versa? I think that
it needs to DTRT sooner rather than later if the scheduling isn't
smart yet. In the meantime I assume that you could run a separate
cluster of ARM vs. x86, but that would probably be less than ideal I
think. Other thoughts?