From 298ec7e00f1f63261320a3428baef2f34a1ae052 Mon Sep 17 00:00:00 2001
From: Davide Cavalca <dcavalca@centosproject.org>
Date: Apr 04 2023 15:56:32 +0000
Subject: Add notes from the Brussels in-person meetup


This came from https://hackmd.io/0c4QkuK_SKu-IMu0pH6pGg

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+# CentOS Hyperscale SIG meetup @ Connect/FOSDEM 2023
+
+This is a copy of the [live document](https://hackmd.io/0c4QkuK_SKu-IMu0pH6pGg) for the CentOS Hyperscale SIG meetup [event](https://www.eventbrite.com/e/centos-hyperscale-sig-meetup-connectfosdem-2023-tickets-505677965407) co-located with CentOS Connect and FOSDEM 2023.
+
+## Venue
+
+- Where: 
+  - in person: Hilton DoubleTree City Center Brussels, Chestnut 1 room
+  - online: [Zoom invite](https://us06web.zoom.us/j/88575692191?pwd=ZFFuUi9wb2ZBajBndHJ4N1ZsdFpCdz09), meeting id is 885 7569 2191 and passcode is 424971
+- When: Feb 2nd 2023 9am
+
+## Topics
+
+Add things here that you want to discuss; conversely, we'll add topics that come up as the meetup progresses.
+
+### reproducible builds
+
+- see notes from [previous meetup](https://pagure.io/centos-sig-hyperscale/sig/blob/main/f/meetups/20220816-boston-meetup.md)
+- rpm already has knobs for this, improvements in f38
+  - https://fedoraproject.org/wiki/Changes/ReproducibleBuildsClampMtimes
+- TODO(Davide, Neal, Pablo): put up a Change for `%use_source_date_epoch_as_buildtime 1` for F39
+  - check with ELN to do a mass rebuild after this lands
+- buildhost is problematic
+  - `%_buildhost fedorabuilder` can make it fixed but makes it harder to debug things
+- add automatic reproducibility checks to Koji
+- CentOS should pick this up as well when they branch from F40
+- need better tooling for mass rebuilds / automation
+- autotools parallel builds are not deterministic
+  - need to capture the build cpu number (TODO: consider putting up Change for F39)
+  - need to remove randomness from the make jobserver (or build a wrapper for it)
+
+### systemd
+
+- Daan: 252 release
+- Daan: selinux troubleshooting
+  - TODO(Daan): need to fix Hyperscale systemd CI
+  - check with RH plumbers on systemd tests for selinux
+  - figure out how to spin up VMs in openshift
+    - check with Fabian
+- need a better maint story for non-default daemons
+- dbus API for networkd
+
+### profiling and frame pointers
+
+- continuous profiling
+- systemd-perfd
+  - data format, use journal as intermediate
+  - use /run for shmem ipc if other format is needed
+  - buffer size needs to be self tuning
+- data visualization is still an open item
+
+### deltarpm
+
+- not particularly useful now
+- would require work in bodhi to add the necessary metadata and merge it, or keep the old compose and merge afterwards
+- nobody seems to care, Pablo to put up a Change to force discussion
+- talk to bstinson to make sure RHEL is aware
+
+### packaging
+
+- fedora review process
+  - needs a rubric and better automation
+  - man page requirement, consider supporting md or rst and doing conversion in rpm
+- look at https://github.com/Debian/debiman and https://github.com/thkukuk/rpm2docserv
+
+### kernel
+
+- need to sort out el8 builds
+- secure boot
+- TODO(Neal) finish rebasing 5.14
+
+### image builds
+
+- need environment groups in cbs
+- write osbuild plugin for koji
+
+### SIG housekeeping
+
+- OpenShift CentOS CI migration
+- tickets