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.

Learn more about Atomic App

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

Installing an OpenShift Origin Cluster on Fedora 25 Atomic Host: Part 1


Openshift Origin is the upstream project that builds on top of the Kubernetes platform and feeds into the OpenShift Container Platform product that is available from Red Hat today. Origin is a great way to get started with Kubernetes, and what better place to run a container orchestration layer than on top of Fedora Atomic Host?

We recently released Fedora 25, along with the first biweekly release of Fedora 25 Atomic Host. This blog post will show you the basics for getting a production installation of Origin running on Fedora 25 Atomic Host using the OpenShift Ansible Installer. The OpenShift Ansible installer will allow you to install a production-worthy OpenShift cluster. If you’d like to just try out OpenShift on a single node instead, you can set up OpenShift with the oc cluster up command, which we will detail in a later blog post.

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Cockpit 125 Now Available

Cockpit’s build 125 has been released.

Cockpit is the modern Linux admin interface. We release regularly. Here are the release notes from version 123, 124 and 125.

Cockpit is now properly translatable

Cockpit is now properly translatable. It was a big task to extract all the translatable strings and make translations work consistently between the browser and installed tools like the bridge.

We now start also run the login user session with a proper locale and LANG environment variables.

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Fedora Atomic 25 released

Fedora 25 has been released, including Fedora Atomic 25, the latest build of Fedora’s container platform. Among the features added in this build are:

You can install Fedora Atomic 25 by any of the various methods listed on the GetFedora Atomic page. You can also upgrade an existing server to Atomic 25 from version 24:

-bash-4.3# rpm-ostree status
State: idle
● fedora-atomic:fedora-atomic/24/x86_64/docker-host
       Version: 24.78 (2016-11-10 02...
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Containerization and Deployment of application on Atomic host with Ansible-Playbook

This mini-tutorial describes how to build Docker image and deploy containerized application on Atomic host using Ansible Playbook.

Building Docker image for an application and running container/cluster of containers is nothing new. But the idea is to automate the whole process and this is where Ansible playbooks come in to play.

Note: You can use any Cloud/Workstation based Image to execute the following task.

How to automate the containerization and deployment process for a simple Flask application

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