Devconf.cz 2023

In this session, we'll talk about the latest new features in QEMU (the OSS machine emulator and virtualizer - see https://www.qemu.org/) and changes from the past year, both, from a user and a developer's perspective. The presentation will show you what useful features have been added recently, with some quick examples how to use it.

I am working on a prototype of kickstart HTTP endpoint and out of band server power management project similar to Beaker that provides a simple but powerful automated provisioning for Fedora and Red Hat compatible systems on bare-metal and virtualized environments. I want to share my thoughts, show a demo and gather feedback.

CoreOS is Dead, Long Live CoreOS - a short history from Container Linux over Fedora CoreOS, CentOS Stream CoreOS, RHEL CoreOS into the future.

Storage configuration can be complex by itself and even more with different distributions and versions and different technologies. This is where the System Roles, set of Ansible Roles used to manage and configure common GNU/Linux components, can help. The storage role offers a consistent automation API for storage configuration, all you need is to specify how the storage should look like and it will make sure all necessary bits and pieces are created and configured according to the specification. The role currently supports all common storage technologies including LVM, thin provisioning, VDO deduplication and compression, filesystem operations and more. This talk will briefly introduce the technology and show you how can you use Ansible and System Roles for managing storage remotely on your GNU/Linux systems.

How can we make downstream package maintenance easy?
To answer this, we will first address the shortcomings of the existing dist-git-based development process for Fedora/CentOS/RHEL.
For OpenSSL, rebasing to a newer upstream version in the presence of many downstream patches often requires adjusting the patches, while a git rebase in source-git could have automatically solved the conflict, or at least simplified the rebase.In fact, many of our patches are cherry-picks from upstream. Cherry-picking would be significantly easier with source-git based workflow.

The goal of this talk is to learn how to create a source-git repository using packit and define a workflow to maintain packages in source-git.
 We will consider OpenSSL as an example and demonstrate how the migration works.