2025-06-12 –, A113 (capacity 64)
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!
Intermediate - attendees should be familiar with the subject
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.