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[kolla] State of ppc64le support


Hey all,

We do use kolla. Let me see if I can shed some light here.

On 9/16/19 11:54 AM, Wesley Hayutin wrote:
>
>
> On Mon, Sep 16, 2019 at 7:36 AM Alex Schultz <aschultz at redhat.com 
> <mailto:aschultz at redhat.com>> wrote:
>
>
>
>     On Sat, Sep 14, 2019 at 10:51 AM Marcin Juszkiewicz
>     <marcin.juszkiewicz at linaro.org
>     <mailto:marcin.juszkiewicz at linaro.org>> wrote:
>
>         About 2.5 years ago I added AArch64 (64-bit ARM) architecture
>         support to
>         Kolla project. Side effect of that work was adding ppc64le (64-bit
>         Power, Little Endian) support.
>
>         Time passed, from time to time someone jumped to the irc
>         channel and
>         said that they use it. No one in core team spent much time on
>         supporting
>         it as it was outside of our interest.
>
>         From time to time I was reserving Power machine in Red Hat to
>         do build
>         and check how we are with ppc64le support. This week I did
>         that again.
>
>         From 3 distributions we target only Debian/source combo was
>         buildable.
>
>         CentOS builds lack 'rabbitmq' 3.7.10 (we use external repo) and
>         'gnocchi' binary images are not buildable due to lack of some
>         packages
>         (issue already reported to CentOS by TripleO team).
>

We should be getting the gnocchi issue fixed. See this thread 
https://lists.centos.org/pipermail/centos-devel/2019-September/017721.html
The rabbitmq issue is confusing me. The version provided for x86_64 
seems to be the same one provided for ppc64le, but maybe I'm missing 
something. If there's a package we need to get published, I can investigate.


>
>         Ubuntu builds lack MariaDB 10.3 because upstream repo is broken.
>         Packages index is provided for 'ppc64le' but no packages so we
>         get 404
>         errors.
>

Unfortunately I'm not well versed on the gaps in Ubuntu.


>
>         Due to all those issues and fact that there are no users of
>         ppc64le
>         Kolla containers I want to drop support for it in this cycle. Any
>         objections?
>
>
>     I think TripleO uses the ppc64le containers. I'm unsure if we're
>     relying on anything special to build them however.  I know there's
>     been some effort to get a pp64le upstream build system going. 
>     ccing Wes as he might have the status on this.
>
>
> The TripleO team is working on ppc64le right now and should be 
> uploading ppc64le containers to docker.io <http://docker.io> in a few 
> weeks.  I'm pretty sure the ppc team is using kolla to build the 
> containers, but I'm not 100% sure as the ppc64le container build jobs 
> are in a 3rd party ci system.
Just to clarify, the builds happen here 
https://ci.centos.org/job/tripleo-upstream-containers-build-master-ppc64le/
We are using kolla with buildah. The Dockerfiles are generated by kolla 
and then consumed by buildah.

Logs can be found here as well - 
https://centos.logs.rdoproject.org/tripleo-upstream-containers-build-master-ppc64le/
>
> I'm checking with some folks to get the details that would be helpful 
> here.
>
> Thanks.

The question I have is, what do you need to maintain support? I can join 
this week's IRC meeting if that would be helpful.

Also, last week mnasiadka reached out to me asking if we might be able 
to turn on kolla jobs in pkvmci (our third party CI - 
https://wiki.openstack.org/wiki/ThirdPartySystems/IBMPowerKVMCI ). I 
plan to talk to our CI folks this week to see if we have capacity for this.

Thanks,
Mike Turek <mjturek>

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