bootc-resources

---

Intro

• What are Bootable Containers? - IBM Tech

• Flock 2024 Bootable Containers A deep dive into image based OS - Dan Walsh (Father of SELinux/Podman)

• bootc-dev/bootc: Boot and upgrade via container images - GitHub

  • The official project repository, a great place to start for a high-level overview of the project's goals, status, and community.

• Getting Started with Bootable Containers - Fedora Documentation

  • A foundational guide that explains the core concepts, benefits, and how to start using bootable containers.

    How It Works

• Understanding bootc install

  • A deep dive into the bootc install command, which is the core of how a container image becomes a bootable system. It explains the process of writing to disk and setting up the bootloader.

• Filesystem - bootc

  • Explains the immutable filesystem layout of a bootc system, with /usr being read-only and /etc and /var being used for persistent, mutable data.

• How pre-tuned real-time bootable containers work | Red Hat Developer

  • A technical article that provides an example of using bootc for real-time workloads, offering a peek into its internal mechanisms and customization.

• UKIs Composefs and Bootc

  ---

  What about Nix?

• Nix-Fedora-Toolbox

• Managing Your Laptop with Bootable Containers, Fedora Toolbox, Nix, and Home Manager :: DevConf.CZ 2025

  ---

  Deploying with Bootc on Bare Metal (in the cloud)

• System provisioning and bootc, now and the future :: DevConf.CZ 2025 - Colin Walters (OPenshift/CoreOS, Maintainer of Bootc)

• Great Example - https://github.com/RamaEdge/os-builder

  • Ravi Chillerega - k3s and Microshift baked in to bootc images for deployment to edge devices

• Keynote: Revolutionize your OS deploy and management with bootc containers :: DevConf.CZ 2025

  ---

  Desktop building with Bootc

• ublue-os/image-template: Build your own custom Universal ... - GitHub

  • This is where you should start if you want to make your own desktop OS image

• Universal Blue – Powered by the future, delivered today

  • Universal Blue offers custom, immutable Atomic Desktop images, streamlining the creation and management of pre-configured OS environments using bootc for modern deployment.

• Red Hat / centos-stream / containers / bootc - GitLab - CentOS Bootc Base images

  • quay.io/centos-bootc/centos-bootc:stream10

• Fedora / bootc / Base Images - GitLab - Fedora Bootc Base Images

  • quay.io/fedora/fedora-bootc:42

• AlmaLinux/bootc-images - GitHub - Almalinux Bootc Base images

  • quay.io/almalinuxorg/almalinux-bootc:10
  • AlmaLinux/atomic-desktop - GitHub - KDE + GNOME base images
    • AlmaLinux/atomic-workstation - GitHub - More Opinionated GNOME workstation baes on AlmaLInux

• https://github.com/tuna-os/tunaOS

  • Forks of Bluefin LTS bringing most of the goodies to other base images
    • Yellowfin - Almalinux 10 Kitten (synced with CentOS 10)
    • Albacore - Almalinux 10 (synced with RHEL/EL 10)
    • Bluefin-tuna - Fedora 42 (using newer, pure bootc, unlike Bluefin)
    • Redfin - RHEL 10

• HeliumOS - KDE CentOS-based desktop image

• EU-OS - Community-led Proof-Of-Concept of a Public-use OS for EU

• ublue-os/aurora-lts: Aurora Helium - GitHub - CentOS companion to ublue-os/aurora: The ultimate productivity workstation - GitHub Needs maintainers!!

  ---

  Security

  • Syft - SBOM

    • out of memory exception when scanning images (here: fedora-bootc …
    • Syft SBOM in a GHA
    • Example bootc repo using Syft and Grype (SBOM and Vuln-scanning)

  • Trivy - SARIF Vuln scan

    • Trivy-scan Example

    ---

    Future & Best Practices

• Shape the Future of Linux: Contribute to bootc Open Source Project | Red Hat Developer

  • A recent blog post discussing bootc's acceptance into the CNCF Sandbox, its evolution, and the benefits of contributing to the project.

• Building images - bootc

  • Provides guidance on best practices for building bootc-compatible images, including how to handle configuration files and nested containers. It also discusses the project's vision for the future.