Dan Čermák
Dan is building container images, creating developer tools and sometimes works on QA at SUSE, which he joined after working as an embedded firmware developer. Originally he started out as a theoretical astrophysicist, but after becoming a contributor to various Open Source projects, he finally made this his full time job at SUSE.
In his free time Dan contributes to various upstream Projects, maintains packages in Linux distributions and enjoys a game of Minecraft or Satisfactory. When he's not sitting in front of his computer, he can be found either on his bike or in the kitchen testing out another recipe.
SUSE
Job title –Software Developer
Sessions
Traditional package updates using tools like RPM or Zypper can introduce risks, such as incomplete updates or accidentally breaking the running system. To overcome these challenges, we developed container-snap, a prototype plugin designed to deliver atomic OS updates—updates that are fully applied or rolled back without compromising the system's state.
container-snap leverages OCI images as the source for updates and integrates seamlessly with openSUSE’s tukit to enable transactional OS updates. By utilizing Podman’s btrfs storage driver, it creates btrfs subvolumes directly from OCI images, allowing systems to boot from the OCI image. This approach empowers users to construct their own OS images using familiar container image-building tools, like Docker or Buildah.
In this session, we’ll dive into:
- The architecture and technical implementation of container-snap
- Challenges encountered during development and how we resolved them
- Key lessons learned along the way
- A live demo showcasing container-snap in action
Come and join this session to learn more about how to boot from an OCI image without bricking your system!
The Linux ecosystem thrives on collaboration, yet distribution-specific tooling often creates silos. Packit, originally designed as a CI/CD solution for Fedora, is now bridging these gaps by expanding support to other distributions. Thanks to contributions from Google Summer of Code, Packit now integrates with the Open Build Service (OBS), bringing seamless automation to openSUSE and beyond.
In this talk, we’ll explore how OBS integration unlocks new capabilities for openSUSE developers and demonstrate how Packit streamlines package maintenance and CI/CD workflows across distributions. Whether you're a Fedora maintainer, an openSUSE contributor, or an upstream developer looking to automate your builds, you'll gain practical insights into Packit's growing toolset and how it can enhance your workflow.
Join us to see how Packit is breaking down barriers and making cross-distro CI/CD a reality!