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Fedora CoreOS

Tired of complex server management and manual updates? Fedora CoreOS (FCOS) is the solution. This is a minimal, automatically updating, container-focused OS, set to be the future of server infrastructure.

Why FCOS is a Game Changer

  • Atomic Updates: Managed by rpm-ostree, the entire OS updates atomically and automatically in the background, minimizing risk and maximizing uptime.
  • Immutable and Secure: The read-only root filesystem enforces security, and all workloads run securely in containers.
  • Enterprise Proven: The CoreOS concept forms the immutable host OS for Red Hat OpenShift (via RHCOS), proving its scalability and reliability.
  • Perfect for the Edge: Its small footprint, automation, and stability make FCOS the ideal solution for edge computing deployments.

Seamless Provisioning and Security

FCOS uses a declarative workflow:

  1. Define: Create your server state in a simple YAML using the Butane specification (network(s), users, containers using Podman Quadlet, ...)
  2. Generate: Use the butane command to produce the final Ignition JSON (.ign file).
  3. Deploy: Inject the config during installation using coreos-installer customize.

The container engine, Podman, enables rootless containers & auto-update, drastically enhancing security and isolation.

FCOS delivers automation, security, and proven stability.

See my implementation example: https://github.com/snoopyx21/coreos-sample

Learn More: https://docs.fedoraproject.org/en-US/fedora-coreos/