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rpm-ostree: A true hybrid image/package system

rpm-ostree is a hybrid image/package system. It combines libostree as a base image format, and accepts RPM on both the client and server side, sharing code with the dnf project; specifically libdnf. and thus bringing many of the benefits of both together.

🆕 as of release 2022.16 rpm-ostree now also supports ostree native containers.

                         ┌─────────────────────────────────────────┐
                         │                                         │
                         │       rpm-ostree (daemon + CLI)         │
                  ┌──────┤                                         ├─────────┐
                  │      │     status, upgrade, rollback,          │         │
                  │      │     pkg layering, initramfs --enable    │         │
                  │      │                                         │         │
                  │      └─────────────────────────────────────────┘         │
                  │                                                          │
                  │                                                          │
                  │                                                          │
┌─────────────────┴─────────────────────────┐        ┌───────────────────────┴─────────────────┐
│                                           │        │                                         │
│         ostree (image system)             │        │            libdnf (pkg system)          │
│                                           │        │                                         │
│  fetch ostree repos and container images, │        │    ties together libsolv (SAT solver)   │
│  atomic filesystem trees, rollbacks       │        │    with librepo (RPM repo downloads)    │
│                                           │        │                                         │
└───────────────────────────────────────────┘        └─────────────────────────────────────────┘

Features:

  • Transactional, background image-based (versioned/checksummed) upgrades, using both bootable container images as well as an "ostree native" HTTP model
  • OS rollback without affecting user data (/usr but not /etc, /var) via libostree
  • Client-side package layering (and overrides)
  • Custom base images via rpm-ostree compose image (container) or rpm-ostree compose tree (ostree repo)

Documentation

For more information, see the project documentation or the project documentation website.

License

rpm-ostree includes code licensed under GPLv2+, LGPLv2+, (Apache 2.0 OR MIT). For more information, see LICENSE.