Building the Next Generation Container OS

Use immutable infrastructure to deploy and scale your containerized applications. Project Atomic provides the best platform for your Linux Docker Kubernetes (LDK) application stack.

Project Atomic introduces Atomic Registry — a free and open source enterprise container registry. Manage your containers without third party hubs.

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Atomic Host

Based on proven technology either from Red Hat Enterprise Linux or the CentOS and Fedora projects, Atomic Host is a lightweight, immutable platform, designed with the sole purpose of running containerized applications.

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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Atomic App and Nulecule

With Atomic App, use existing containers as building blocks for your new application product or project. Using existing containers to provide core infrastructure components lets you focus more on building the stuff that matters and less time packaging and setting up the common plumbing required.

Define your Atomic Apps with the Nulecule specification to compose and distribute complex applications.

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Learn more about Nulecule

Atomic Registry

An enterprise Docker container registry solution run on-premise or in the cloud.

Atomic Registry uses 100% open source technology to provide enterprise features such as role-based access control (RBAC), diverse authentication options, a rich web console, flexible storage integration and more.

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Community News

Deploying an OpenShift Origin Stand-alone Registry on Fedora 25 Atomic Host

The Project Atomic site has had a section dedicated to the Atomic Registry which has been useful for getting a registry up and running as quickly as possible. However, the software powering the quickstart installation has not always kept up with the OpenShift Origin software which powers the actual registry and web UI. This has lead to an increase in users reporting issues in the #atomic Freenode IRC channel. And often it ends with someone pointing to the stand-alone registry documentation that is provided by the OpenShift Origin project.

It turns out that deploying the stand-alone registry on a single Fedora 25 Atomic Host system is quite straight-forward and can quickly provide a usable registry. In this blog post, we’ll deploy a proof-of-concept stand-alone registry on a single node, which will end up using self-signed certificates in the process. In a later blog post, we’ll show you how to setup a stand-alone registry using multiple nodes and your own SSL certificates.

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Fedora Atomic May 23 Release

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

Commit: cdd359911de49f3a8199ffd41a9894019562001d6cf9be66e1894c31b6fa1c66
Version: 25.127

This release returns us to our normal 2-week schedule after some delays with the last two releases.

Notable updates are the kernel, ostree, and selinux-policy.

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Fedora Atomic May 15 Release

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

Commit: 3fd888c674c6d69907eabc665103341e01ebe3a04c3876af6cac673b0bf43662
Version: 25.122

Unfortunately we had some release engineering hiccups last week. Which caused us to not have a release candidate with all the fixes we needed until Friday. We will get back on track next week.

Notable updates are the atomic CLI, ostree and rpm-ostree.

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