Alternatives to Fedora CoreOS

A minimal, automatically updating Fedora-based operating system for running containerized applications. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as Fedora CoreOS.

  • Flatcar Container Linux

    A minimal, immutable Linux distribution with automatic atomic updates, built for running containers.

    FreeOpen sourceLinuxSelf-hosted

    Flatcar Container Linux keeps automatic atomic updates with a read-only immutable filesystem, but has no package manager, so any extra software must run in containers.

  • Bottlerocket

    A minimal open-source Linux operating system from AWS that exists only to host containers.

    FreeOpen sourceLinuxSelf-hosted

    Bottlerocket is AWS's container-only operating system with rollback-capable single-step updates, available as a free EC2 AMI but built mainly around AWS rather than many platforms.

  • Talos Linux

    An immutable, API-managed Linux operating system built only to run Kubernetes clusters.

    FreemiumOpen sourceLinuxSelf-hosted

    Talos Linux runs only Kubernetes clusters, is managed through an API with no SSH or shell, and puts FIPS compliance and formal support in a paid edition.

  • Photon OS

    A minimal, security-hardened Linux operating system from VMware for containers, appliances and cloud hosts.

    FreeOpen sourceLinux

    Photon OS is VMware's security-hardened minimal host with PXE and kickstart installation, images for x86, ARM64 and Raspberry Pi, and best integration with VMware environments.

Similar software

Related functionality, not a direct replacement.