[CentOS-devel] CBS and SIGs consuming CentOS 8 / Stream

Niels de Vos

ndevos at redhat.com
Tue Oct 29 13:00:11 UTC 2019

On Tue, Oct 29, 2019 at 11:24:10AM +0100, Thomas Oulevey wrote:
> Hi Folks,
> Let me give you an update after this week upgrade.

Great, thanks for the details!


> > I'll try to give a summary of my investigation. I'll decouple two
> > problems : the koji upgrade and having a working CentOS 8
> > target/buildroot in cbs.centos.org with CentOS 7 builders.
> > 
> > 1/ koji upgrade
> Koji upgrade has been done and we didn't detect any major issues. We
> upgraded all build service components to use CentOS 7 and additional
> packages needed for CentOS 8 buildroots have been installed.
> Please report bugs at https://bugs.centos.org if you find issues.
> > 2/ CentOS 8 buildroot
> As now 1/ is finished we finally have a plan for C8 buildroot in the
> Community build service.
> Brian will generate, in next days, two 'compose' (C8 and C8 Stream) from
> https://koji.mbox.centos.org/koji/ and we will declare it as an external
> repo in CBS.
> We will validate that those 'compose' allow use to build (most of) SIG
> package in our test instance and then deploy it to the production one.
> Please note that the 'compose' will be (automagically) regenerated on every
> new updates. On the koji side we will detect those changes and regenerate
> all affected buildroot tags when there is an update.
> In term of impact, we may have to reconfigure some option on the koji side,
> but it will likely be transparent. We hope to have a working solution in the
> next two weeks.
> I'd like now discuss few additional points.
> 3/ Namespace for C8 and C8 Stream
> Koji allow to have a single NVR for each build, you cannot rebuild a NVR
> that exist. So to be able to build in parallel for C8 and C8 Stream the same
> package we will need to use a different disttag.
> The proposal is to use ".el8" and ".el8s".
> At this point SIGs will have to submit twice the builds to koji, I hope we
> can automate further this step with a better centos-packager in the
> beginning of 2020.
> Let us know if you have some feedback.
> 4/ Building from GIT
> During the previous upgrade we deployed the changes needed to be able to
> build from git.centos.org for SIGs (mbox allowed it already). We still have
> to do some validation but expect this feature to be available soon as well.
> We will document the process in the wiki when we have a working PoC.
> Thanks for reading and let us know if you have questions,
> -- 
> Thomas 'alphacc' Oulevey
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