[kolla][tripleo] Podman/buildah

Mark Goddard mark at stackhpc.com
Wed Jun 5 12:47:07 UTC 2019

On Wed, 5 Jun 2019 at 13:28, Emilien Macchi <emilien at redhat.com> wrote:
> On Wed, Jun 5, 2019 at 5:21 AM Mark Goddard <mark at stackhpc.com> wrote:
> [...]
>> I understand that Tripleo uses buildah to build images already (please
>> correct me if I'm wrong). How is this achieved with kolla? Perhaps
>> using 'kolla-build --template-only' to generate Dockerfiles then
>> invoking buildah separately? Are you planning to work on adding
>> buildah support to kolla itself?
> That's what we did indeed, we use Kolla to generate Dockerfiles, then call Buildah from tripleoclient to build containers.
> We have not planned (yet) to port that workflow to Kolla, which would involve some refacto in the build code (last time I checked).
> I wrote a blog post about it a while ago:
> https://my1.fr/blog/openstack-containerization-with-podman-part-5-image-build/

Thanks for following up. It wouldn't be a trivial change to add
buildah support in kolla, but it would have saved reimplementing the
task parallelisation in Tripleo and would benefit others too. Never

> --
> Emilien Macchi

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