Bootc and OSTree: Modernizing Linux System Deployment
6 hours ago
- #Linux
- #Immutable Infrastructure
- #System Deployment
- OSTree is described as 'Git for filesystems', enabling versioning, distribution, and atomic deployment of Linux systems.
- OSTree stores complete system snapshots, making updates and rollbacks easier, and is based on ComposeFS for data integrity.
- Fedora Silverblue is an immutable distribution that benefits from OSTree's advantages while providing a classic Linux installation experience.
- rpm-ostree replaces dnf and yum in RedHat OSes for package management in OSTree-based systems.
- Bootc allows booting a Linux system directly from a container image, treating the OS as an immutable image for easier management.
- Bootc and OSTree can be used together for a powerful workflow in managing Linux systems, with Bootc handling deployment and OSTree managing files and packages.
- Updates with Bootc and OSTree are atomic, ensuring system consistency and easy rollback in case of issues.
- The article demonstrates deploying a Fedora Silverblue system using a Bootc image and managing updates through CI/CD pipelines.
- Bootc-fetch-apply-updates.service automatically checks for and applies updates, maintaining system consistency with the OCI image.
- The combination of Bootc and OSTree offers a modern approach to Linux system deployment, suitable for both servers and development machines.