devel March 2023

devel@lists.centos.org

31 participants
20 discussions

RFC (Request for Comments) : future of https://planet.centos.org
by Fabian Arrotin 29 Mar '23

29 Mar '23

https://planet.centos.org was deployed a long time ago to aggregate feeds from various centos contributors and it was migrated from centos release to centos newer release, as planet (python2 based app) was easy to just rebuild. Now that CentOS Linux 7 will go EOL next year, and that https://blog.centos.org/ (linked to SSO) seems to be the only source for blog posts, I'd like to consider just decommissioning that planet instance, and the "Around CentOS" section of www.centos.org homepage would fetch rss feed from blog.centos.org, instead of planet.centos.org (just acting as a MITM these days) Opinions, thoughts ? -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | @arrfab[@fosstodon.org]

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RFC (Request for Comments) : future of https://feeds.centos.org
by Fabian Arrotin 29 Mar '23

29 Mar '23

The current situation wrt https://feeds.centos.org is that it was started as a quick/easy way to generate .xml files for RSS feeds, for people willing to just subscribe to some feeds to know when some packages land for Stream 8 and 9 (no mail is sent to centos-announce list for these) It's relying on the `repo-rss` script, from yum-utils, on CentOS 7. But it seems that such tool doesn't exist anymore in dnf-plugins-core (providing yum-utils) and so is absent in CentOS Stream 8 and Stream 9. So the question : should we just stop that service when CentOS Linux 7 will be EOL in June 2024 ? Or are there volunteers to port that tool/script upstream to python3 and have it included in a dnf-plugins-core (or a parallel package in Epel 9) ? -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | @arrfab[@fosstodon.org]

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Fedora ELN architecture baseline preparation for CentOS Stream 10
by Brian Stinson 16 Mar '23

16 Mar '23

Hi Folks, The purpose of Fedora ELN is to reflect content from Fedora Rawhide, but built using Enterprise Linux build flags and buildroot configurations. As we prepare for CentOS Stream 10 (and ultimately RHEL 10) we are updating the x86_64 architecture baseline to x86_64-v3 in Fedora ELN [0]. There are no changes to the aarch64, ppc64le or s390x baselines. Your feedback as we make this change is appreciated, and we’re happy to help with any questions. – Brian Stinson and Stephen Gallagher [0]: https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/247#reque…

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Proposal: CentOS x86 SIG
by Florian Weimer 16 Mar '23

16 Mar '23

# Goals The purpose of this SIG is to quantify the potential benefits of applying existing compiler technology to distribution packages, targeting more recent CPUs, and evaluating different options for how these optimizations can be maintained in a scalable way, and delivered to end users. Today, there is a significant delay between the release of new x86-64 ISAs and the adoption across the entire CentOS distribution. For example, CentOS 9 Stream released with the x86-64-v2 ISA baseline, nine to thirteen years after such CPUs became commercially available. The concern is that this discrepancy leaves more recent CPU features unused, and end users do not see the best possible performance for the CPUs they use. Parts of the distribution are built with run-time selected optimizations, but this only applies to specialized functional areas, such as string manipulation, certain mathematical operations, and cryptography, but not (for example) to language interpreters that are part of CentOS. # Status Proposed: RFC and looking for a sponsoring Governing Board member # What’s in scope * Explore the immediate runtime performance impact of package-specific ISA-related work on key workloads e.g. language interpreters. * Evaluate the performance benefit at run-time of building CentOS with auto-vectorization and the very-cheap cost model and different x86-64 micro-architecture levels. * Explore ways how these performance-enhancing builds can be maintained at the distribution level and made available to end users for installation. * Assess the image/container size impact of those additional optimized builds (this may not be applicable to some delivery mechanisms). * Explore ways to alert users that they do not get optimal performance because of misconfigured hypervisors. * It is possible, but not likely, that work across the entire distribution may be needed to enable shadow stacks. (Userspace enablement happened as part of CentOS 8, but the kernel parts are not upstream and have changed significantly, so there is some uncertainty.) If large-scale work affecting many packages is needed, the SIG would be a natural place to prototype changes before integration into the distribution. # What's not in scope * Enablement for future x86 CPUs and chipsets, assemblers, linkers, and compiler support for new ISAs including regular performance work on individual packages (e.g., identified upstream backports). Hardware enablement must follow existing processes. * Any 32-bit work (such as 64-bit time_t, or a 32-bit kernel) is explicitly excluded. * The focus will be on userspace changes. * Rebuilds for potential observability improvements are out of scope (although shadow stacks are expected to help in this a * Adding additional hosts to the CentOS infrastructure in support of this SIG needs to be negotiated with the CentOS infrastructure team. The CPU microarchitecture level of the existing infrastructure is already sufficient. # Roadmap March 2023: Start the SIG and coordinate with partners April 2023: Adopt existing CentOS builder resources to deliver the required builds. May 2023: Initial performance analysis results. Rest TBD based on results of exploration. Resources They SIG could benefit from spare x86-64 Koji builder capacity.

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CentOS Stream 8 is now ahead of RHEL 8
by Adam Samalik 16 Mar '23

16 Mar '23

Hi everyone, I'm glad to announce we have resumed releasing CentOS Stream 8 updates, and that Stream 8 is now following the same workflow as Stream 9. This is a follow up of https://lists.centos.org/pipermail/centos-devel/2023-February/142762.html This means Stream 8 builds will be appearing in the Stream koji (https://kojihub.stream.centos.org), built from sources in the Stream dist-git (https://gitlab.com/redhat/centos-stream/rpms). Mirrors remain the same as before. Individual composes can be found at https://composes.stream.centos.org/stream-8/ We're finishing up cloud and container images, you will find them in the same places as before when ready. Cheers! -- Adam Samalik --------------------------- Principal Software Engineer Red Hat

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March Newsletter
by Shaun McCance 15 Mar '23

15 Mar '23

The monthly CentOS newsletter is available. This month: making Stream 8 more like Stream 9, retiring EPEL 8 Modules, web and docs work, and an x86 SIG proposal. Plus, updates from Alt Images and Virtualization SIGs. https://blog.centos.org/2023/03/centos-newsletter-march-2023/

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March board meeting and office hours
by Shaun McCance 09 Mar '23

09 Mar '23

We've published the video of Wednesday's board meeting. Recording: https://youtu.be/VQ1Zc8D-xh4 Minutes: https://hackmd.io/JU0brnwQQcy0lfmoviA1FA Recap: https://blog.centos.org/2023/03/centos-board-meeting-recap-march-2023/ We'll have a followup board office hours next Thursday, March 16, at 14:00 UTC. (Note that this might be a different local time for you than last time. We have followed US DST.) https://us06web.zoom.us/j/85797326320?pwd=ang0SjlxRlRYTlRGRlFSUXJzZGNUZz09 Highlights of the recap: * Christian Glombek presented about CentOS Stream CoreOS & OKD Streams. This is a condensed version of the talk he gave at CentOS Connect. We unfortunately don't have a recording of that talk because of technical issues, so this is your chance to see it. * We discussed the x86 SIG proposal. This conversation is ongoing. * Issue 92: We discussed signing testing repositories * We gave a recap of the work to migrate content off the wiki. See the post on centos-promo. * Issue 93: We talked about the announcement around the EOL/EOB for CentOS Stream 8 and CentOS Linux 7 in 2024. Pat has written a post, and Shaun is working on how to display notices. * We talked about events. We would like to find a home event for a North America West CentOS Connect to join our European event at FOSDEM and our US East event at DevConf.US. We also talked about how to do virtual events, and giving them their own identity distinct from the in-person CentOS Connect. * We talked about doing a survey around CentOS awareness and sentiment.

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CentOS Cloud SIG meeting minutes (2023-03-09) centos
by Joel Capitao 09 Mar '23

09 Mar '23

====================================================== #centos-meeting: CentOS Cloud SIG meeting (2023-03-09) ====================================================== Meeting started by jcapitao[m] at 15:00:54 UTC. The full logs are available athttps://www.centos.org/minutes/2023/March/centos-meeting.2023-03-09-15.00… . Meeting summary --------------- * roll call (jcapitao[m], 15:01:22) * OKD/SCOS Update (jcapitao[m], 15:11:40) * the preparation of the RPM builds for the OpenShift container stack is on-going (jcapitao[m], 15:12:31) * OKD/SCOS is working on standing up a cluster on massopen.cloud (jcapitao[m], 15:13:16) * New release of OpenStack: RDO Antelope schedule plans (jcapitao[m], 15:14:21) * RDO Antelope should be GA by end of March (jcapitao[m], 15:16:40) * TripleO packages won't be provided in CloudSIG repo for this release (jcapitao[m], 15:21:25) * LINK: https://lists.rdoproject.org/archives/list/dev@lists.rdoproject.org/thread/… (jcapitao[m], 15:21:33) * LINK: https://lists.centos.org/pipermail/centos-devel/2023-March/142809.html (amoralej, 15:32:23) * LINK: https://lists.centos.org/pipermail/centos-devel/2023-March/142814.html (jcapitao[m], 15:44:21) Meeting ended at 15:46:32 UTC. Action Items ------------ Action Items, by person ----------------------- * **UNASSIGNED** * (none) People Present (lines said) --------------------------- * jcapitao[m] (40) * amoralej (18) * spotz (10) * centguard (4) * davdunc[m (2) * karolinku12 (1) * lorbus (1) * karolinku (0) Generated by `MeetBot`_ 0.4 .. _`MeetBot`: http://wiki.debian.org/MeetBot

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Take 1 minute to help with Infra & Releng Team with a decision
by Michal Konecny 07 Mar '23

07 Mar '23

Hi everyone, it came to Infra & Releng Team (sub-team in CPE that is taking care of Fedora Infra, Fedora Release Engineering and CentOS Infra) attention that there is a confusion about the labels we are using for issues in our trackers. Namely fedora-infrastructure, releng and centos-infra. There was even a request to change them to something less confusing. So we want to decide if this is really need to change, so we ask you to take this quick survey [0] (this is an anonymous survey, nothing is collected by us) to see if the change is really needed or people are happy with current labels. The survey will be closed on 7th March 2023. On behalf of I&R Team, Michal [0] - https://forms.gle/J2HWDkw1UNuj8HYD8

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2023-03-08 - CentOS Public Board Meeting
by Thomas Oulevey 02 Mar '23

02 Mar '23

Hi Everyone, Our next board meeting will take place at 21:00 UTC next week: `date -d "2023-03-08 21:00 UTC"` If you would like to attend please send me an email to alphacc(a)centosproject.org (please do not reply to @centos-devel or use another email address) and you will receive a link to a Zoom meeting room with a passcode, 1 hour before the meeting takes place. The agenda can be checked at (work in progress) : https://hackmd.io/@centosboard/BJ_FDo93s As a reminder we will enforce few rules : * Wait to be recognized by the Chair before speaking * Respect the Chair when told your time to speak is over - this will allow us to remain on agenda, and complete the meetings in the allotted time * In the event that there are Board-confidential topics, these will be put at the end of the meeting, in Executive Session, and guests will be asked to leave. We hope to minimize these items, but they do sometimes happen. The most common scenarios in which this may happen are personnel issues, or information that Red Hat wishes to share with the Board, but is not yet public. * Muting of participants, or, in extreme situations, ejection from the meeting, is at the sole discretion of the Chair. * Meetings will be recorded, and published to YouTube (possibly with edits/redaction, as approved by the Directors). Thus, by joining the meeting you consent to have your presence at the meeting, and anything you say during the meeting, made public. I hope some of you can join. thanks, -- Thomas 'alphacc' Oulevey CentOS Board of Directors Secretary alphacc(a)centosproject.org

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devel March 2023