About Dusty Mabe

Atomic OpenShift Engineer for Red Hat. Fedora Atomic WG member. Passionate about open source.

Fedora 26 Atomic Host August 08 Release

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

Commit: f6331bcd14577e0ee43db3ba5a44e0f63f74a86e3955604c20542df0b7ad8ad6
Version: 26.101

In this release we have fixed an issue with our qcow and vagrant images from the 20170723 release. If you used the qcow or vagrant images from that release then please make sure you are following the fedora/26/x86_64/atomic-host ref. See this Atomic Working Group issue for more details.

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Setting up SkyDNS

Kubernetes exposes DNS for service discovery, but the DNS server itself must be configured after you install Kubernetes. In the future it will be integrated into kubernetes as part of the platform (see PR11599) but for now you have to setup and run the SkyDNS container yourself.

I have seen some tutorials on how to get skydns working, but almost all of them are rather involved. However, if you just want a simple setup on a single node for testing then it is actually rather easy to get skydns set up.

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Fedora Atomic 26 July 25 Release

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

Commit: 0715ce81064c30d34ed52ef811a3ad5e5d6a34da980bf35b19312489b32d9b83
Version: 26.91

This is the second release for Fedora 26 Atomic Host. This contains a newer version of Kubernetes with fixes for the bug that was in the original release of the Fedora Atomic 26 tree.

Users of built-in Kubernetes on Fedora Atomic Host can now rebase onto the version 26 ref. We will be releasing a few blogs shortly about upgrading your existing hosts.

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

Introduction

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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Installing an OpenShift Origin Cluster on Fedora 25 Atomic Host: Part 2

Introduction

In part 1 of this series, we used the OpenShift Ansible Installer to install Openshift Origin on three servers that were running Fedora 25 Atomic Host. The three machines we’ll be using have the following roles and IP address configurations:

|    Role     |  Public IPv4   | Private IPv4 |
|-------------|----------------|--------------|
| master,etcd | 54.175.0.44    | 10.0.173.101 |
| worker      | 52.91.115.81   | 10.0.156.20  |
| worker      | 54.204.208.138 | 10.0.251.101 |

In this blog, we’ll explore the installed Origin cluster and then launch an application to see if everything works.

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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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