[CentOS-devel] New CentOS Atomic Host release available for download

Tue Aug 23 23:25:31 UTC 2016
Jason Brooks <jbrooks at redhat.com>

An updated version of CentOS Atomic Host (tree version 7.20160818),
featuring support for rpm-ostree package layering. Using the command
rpm-ostree pkg-add, it's now possible to layer new packages into an
installed image that persist across reboots and upgrades.

CentOS Atomic Host is 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, or as an installable ISO, qcow2 or Amazon Machine image.
These images are available for download at cloud.centos.org. The backing
ostree repo is published to mirror.centos.org.

CentOS Atomic Host includes these core component versions:

-   docker-1.10.3-46.el7.centos.10.x86_64
-   kubernetes-1.2.0-0.13.gitec7364b.el7.x86_64
-   kernel-3.10.0-327.28.2.el7.x86_64
-   atomic-1.10.5-7.el7.x86_64
-   flannel-0.5.3-9.el7.x86_64
-   ostree-2016.7-2.atomic.el7.x86_64
-   etcd-2.3.7-2.el7.x86_64
-   cloud-init-0.7.5-10.el7.centos.1.x86_64


Upgrading

If you're running a previous version of CentOS Atomic Host, you can
upgrade to the current image by running the following command:

$ sudo atomic host upgrade


Images

Vagrant

CentOS-Atomic-Host-7-Vagrant-Libvirt.box (530 MB) and
CentOS-Atomic-Host-7-Vagrant-Virtualbox.box (541 MB) are Vagrant boxes
for Libvirt and Virtualbox providers.

The easiest way to consume these images is via the Atlas / Vagrant Cloud
setup (see https://atlas.hashicorp.com/centos/boxes/atomic-host). For
example, getting the VirtualBox instance up would involve running the
following two commands on a machine with vagrant installed:

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

ISO

The installer ISO (757 MB) can be used via regular install methods (PXE,
CD, USB image, etc.) and uses the Anaconda installer to deliver the
CentOS Atomic Host. This image allows users to control the install using
kickstarts and to define custom storage, networking and user accounts.
This is the recommended option for getting CentOS Atomic Host onto bare
metal machines, or for generating your own image sets for custom
environments.

QCOW2

The CentOS-Atomic-Host-7-GenericCloud.qcow2 (1.1 GB) image is suitable
for use in on-premise and local virtualized environments. We test this
on OpenStack, AWS and local Libvirt installs. If your virtualization
platform does not provide its own cloud-init metadata source, you can
create your own NoCloud iso image.

Amazon Machine Images

Region         Image ID

us-east-1      ami-d43d5dc3
us-west-2      ami-0227f362
us-west-1      ami-52df9d32
eu-west-1      ami-ed4b3d9e
eu-central-1   ami-014abb6e
ap-southeast-1 ami-27a27a44
ap-northeast-1 ami-4d35fa2c
ap-southeast-2 ami-65b18606
ap-northeast-2 ami-12ae7b7c
sa-east-1      ami-6ed34202

SHA Sums

5e2d2bc26d4017f556d3f1e65b6cf1a8ca111534515bbb7a6fea3d446af1b674
CentOS-Atomic-Host-7.1607-GenericCloud.qcow2
c8e908072b63581a7c8a3ffc2658eaf64cb30e1f85db7ed97d1e7fa3605dc26f
CentOS-Atomic-Host-7.1607-GenericCloud.qcow2.gz
99776addb6ab2ff25d64831a21eb0c7bfe337be68d402095fd740c05f5d40a3e
CentOS-Atomic-Host-7.1607-GenericCloud.qcow2.xz
05ccc8c1db8047028fabb92c89c3fda9f07286f5e7f2832c9ee92a05bf1bc8dc
CentOS-Atomic-Host-7.1607-Installer.iso
443af2e145370dee939eaab38df9a61a15a0aa1636e477acb7864a175f78b584
CentOS-Atomic-Host-7.1607-Vagrant-Libvirt.box
7fef5a9c02c4c351f051f73e00f24d3a7ce8c0a081ae0f0956eb820b1211dd06
CentOS-Atomic-Host-7.1607-Vagrant-VirtualBox.box


Release Cycle

The CentOS Atomic Host image follows the upstream Red Hat Enterprise
Linux Atomic Host cadence. After sources are released, they're rebuilt
and included in new images. After the images are tested by the SIG and
deemed ready, we announce them.


Getting Involved

CentOS Atomic Host is produced by the CentOS Atomic SIG, based on
upstream work from Project Atomic. If you'd like to work on testing
images, help with packaging, documentation -- join us!

The SIG meets weekly on Thursdays at 16:00 UTC in the #centos-devel
channel, and you'll often find us in #atomic and/or #centos-devel if you
have questions. You can also join the atomic-devel mailing list if you'd
like to discuss the direction of Project Atomic, its components, or have
other questions.


Getting Help

If you run into any problems with the images or components, feel free to
ask on the centos-devel mailing list.

Have questions about using Atomic? See the atomic mailing list or find
us in the #atomic channel on Freenode.
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