Big news, fans of all things Atomic – the CentOS Project’s Atomic SIG has released an updated CentOS Atomic Host system tree and image set, which includes Kubernetes v1:

Today we’re releasing a significant update to the CentOS Atomic Host (version 7.20150908), a lean operating system designed to run Docker containers, built from standard CentOS 7 RPMs, and tracking the component versions included in Red Hat Enterprise Linux Atomic Host.

CentOS Atomic Host is available as a VirtualBox or libvirt-formatted Vagrant box, as an installable ISO image, as a qcow2 image, or as an Amazon Machine Image. These images are available for download at The backing ostree repo is published to

Currently, the CentOS Atomic Host includes these core component versions:

  • kernel 3.10.0-229
  • docker 1.7.1-108
  • kubernetes 1.0.0-0.8.gitb2dafda
  • etcd 2.0.13-2
  • flannel 0.2.0-10
  • cloud-init 0.7.5-10
  • ostree 2015.6-4
  • atomic 1.0-108

For more information, go check out the release announcement at the CentOS project blog. If you’re particularly impatient, vagrant offers the fastest route to getting up and running with the new image:

$ vagrant init centos/atomic-host && vagrant up