[CentOS-devel] Notes from CERN pre-dojo

Fabian Arrotin arrfab at centos.org
Tue Oct 24 08:34:43 UTC 2017


On 21/10/17 12:27, Rich Bowen wrote:
> Also, because it's in an etherpad, and is thus subject to alteration or
> vandalization, I'll also put a copy below for posterity.
> 
> If there are any parts of this which are unclear to those that weren't
> present, we encourage you to start a new thread per topic for further
> discussion.
> 
> Thanks!
> 
> ===================================
> 
> 
> CentOS Contributors Day, CERN
> Thursday, October 19th, 2017
> 
> https://indico.cern.ch/event/660692/overview
> 
> 09:00 multiarch CI status
> 
> 09:30 cross-SIG CI
> 
> 10:00 workflow/process for deprecating SIG contents
> 
> 10:30 allow SIGs to have separate accounts for build bots
> 
> 11:00 Manage CBS multiarch at minor release ; quicker access to packages
> than distribution does, delegate more (i686?), etc... 
> 
> 11:30 OPEN FLOOR, work/hack session.
> 
> 12:00 LUNCH
> 
> 14:00 - 15:00 Datacenter tour
> 
> 16:30 - 17:30 ATLAS experiment
> 
> 
> 
> Topics proposals:
>     - multiarch CI status? (Scheduled)
>     - cross-SIG CI ? (Scheduled)
>     - workflow/process for deprecating SIG contents. +2 (Scheduled)
>     - allow SIGs to have separate accounts for build bots. +1 (Scheduled)
>     - Manage CBS multiarch at minor release ; quicker access to packages
> than distribution does, delegate more (i686?), etc...  (Scheduled)
>     - (mrunge) a kind of work session (?) if there is anything to be
> done/fixed "right now"?
>    - Building embargoed content
>     
> Notes:
>     
> Introductions
> 
> Multiarch CI (Haikel)
> - no automated ci for all platforms
> - if you're using CI, please subscribe to ci-user-list
> - ppc64(le) machines are available, but request is manual right now.
> - aarch64 boxes are small, community donated. Power-capacity is way bigger
> - more detail on the multiarch page in the wiki (not able to find it
> through https://wiki.centos.org/QaWiki/CI/Duffy )
> - https://wiki.centos.org/QaWiki/CI/Multiarch
> - use cico client for interaction wih CI system
> - cicoclient multiarch support has been merged =>
> https://github.com/CentOS/python-cicoclient/pull/14
> - suggestion to use zuul instead of jenkins for managing job queues
> - AI on alphacc: add template for requesting sync to buildlogs to
> mention architectures etc...
> 
> Cross sig ci (Haikel)
> - sig start depending on other SIGs, (multiple examples given)
> - question on how to test pre-released packages
> - to test against extras, SIG should provide tests to t_functional from
> CentOS QA. Wiki page is located at
> https://wiki.centos.org/QaWiki/AutomatedTests/WritingTests/t_functional.
> git is located at https://github.com/CentOS/sig-core-t_functional.
> Results are to be found at https://ci.centos.org/ (search for "pretest"
> for results before package release and for "t_functional" for daily tests)
> - define a matrix for SIGs depending on each other trigger tests - start
> email thread on ci-users list, create dependency graph from centos-release-*
> - CI and CBS meeting on Mondays on #centos-devel
> - CICO statistics are partially available through CentOS Zabbix instance
> 
> 
> Workflow/process for deprecating SIG contents (mrunge)
> - Historically we do not delete content ever. But we can move it to the
> archive/vault, and stop distributing it by default
> - reasons to remove packages from the repository (move to vault.c.o):
>     - newer package in the (base) release
>     - dependency not needed any more from a newer release of your package
>     - end of life for versions (centos-release-gluster with per-version
> repositories)
> - need a workflow for deprecating/removing a package
> - SIGs are for experimentation - it's not for the distro to tell them
> how to run their process.
> - single package removal by untagging - also needs update to KB's sync
> script
> - whole repository removal by filing a bug,
> 
> 
> Allow SIGs to have separate accounts for build bots
>  - separate user accounts from "bot" accounts for security reasons
>  - [proposal] have an email alias (not list) per sig for the bots, like
> sig-<bla>@centos.org <http://centos.org> pointing to the SIG's chair
>  - [proposal] SIG chair must request or approve email alias requests/
> ACO account creation sent to CentOS Board chairman
> 
> Package Signing
> - SIG chairs should request feedback/insight into the package signing
> process --> KB
> - sometimes, there is a delay in package signing/sync to
> mirror.centos.org <http://mirror.centos.org>
> - have keys been generated securely (known bugs in package versions that
> make less secure keys?)
> 
> 
> 
> Sig request for sig specific git
> sigs would like to use centpkg / lookaside, build direct through git to koji
> authentication requirements to accounts.centos.org
> <http://accounts.centos.org>
> Fabian to evaluate git solutions and report back to sig chairs.
> mrunge has volunteered to be the "guinea pig" of the new system
> 
> 
> Manage CBS multiarch at minor release ; quicker access to packages than
> distribution does, delegate more (i686?), etc... 
> - pre-CR buildroot for koji?
> - does any SIG build against c7/i686? No, probably not
> - For 7.4 building all the Alt-Arches took additional time, thus
> delaying the release. There is work being done to improve this for
> future releases
> - is it possible to spread the load for contributors for building on alt
> arches? 
> 
> Other topics
> 
> * Building embargoed patches
> - current practise: build as soon as the embargo is lifted - wait for
> sign+push to mirror
> - improvements possible for signing packages faster
> 
> * Board requirements/policy around SIG status?
>   - SIG chair missing: SIG may elect a new a chair and notify board
>   - inactive SIG members are disabled after some period.
>   - Define sane defaults in the SIG startup guide as a baseline (Patches
> welcomed!)
>   


Thanks Rich for having forwarded the meeting minutes here.
My proposal now would be to split each topic into separate thread for
better/easier tracking and readability so I'll start each time a new
thread (for the things I'm involved with)


-- 
Fabian Arrotin
The CentOS Project | http://www.centos.org
gpg key: 56BEC54E | twitter: @arrfab

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