Building the Next Generation Container OS

Use immutable infrastructure to deploy and scale your containerized applications. Project Atomic builds OSes, tools, and containers for cloud native platforms.

Buildah, a different way to build containers, is now available for testing.

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Atomic Host

Atomic Host provides "immutable infrastructure" for deploying to hundreds or thousands of servers in your private or public cloud. Available in Fedora Atomic Host, CentOS Atomic Host, and Red Hat Atomic Host editions depending on your platform and support needs.

To balance the need between long-term stability and new features, we are providing different releases of Atomic Host for you to choose from.

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Container Registries

You can get your containerized applications from the CentOS Container Pipeline and the Fedora Layered Image Build Service

Trusted container content from the projects you already trust.

Learn more about Fedora Layered Images

Learn more about CentOS Container Pipeline

Community News

Running Kubernetes on Fedora Atomic Host

Fedora 26 Atomic Host relies on Kubernetes for automating deployment, scaling, and operations of application containers across clusters of hosts.

Getting up and running with Kubernetes on Fedora Atomic Host involves installing Kubernetes (or sticking with the version of the software that’s currently baked into the images), and then configuring a cluster. This can be done manually, with the Kubeadm utility, or with Ansible scripts (among other methods).

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Fedora Layered Image Release August 2017

The Fedora Atomic WG and Fedora Release Engineering teams have updated the Fedora Layered Image Registry. With this latest release, images based on Fedora 26 are now available, in addition to the images which were already available based on Fedora 25. This update also includes fedora-minimal images for all active releases, each containing a stripped-down version of Fedora at about 100MB in size.

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Fedora 26 Atomic Host August 22 Release

A new Fedora Atomic Host update is available via an OSTree commit:

Commit: 13ed0f241c9945fd5253689ccd081b5478e5841a71909020e719437bbeb74424
Version: 26.110

Warnings

Hardware Issue: During our testing phase we found an issue where on a specific hardware platform we could not boot after installing from the ISO images, or after updating to this release. If you experience similar behavior please use the previous ISO image. For existing machines, users with affected hardware should either wait for the next two-week release to upgrade, or switch to the updates ref where the issue is already fixed.

Kubernetes: We have also been notified by users that there are firewall issues with Docker 1.13 and Kubernetes.

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