Installing OKD - The Community Distribution of Kubernetes 4.x Cluster on a Single Node [Still in Development/Test]

The following documentation will help you deploy an Community Distribution of Kubernetes (OKD) 4.x cluster, on a single node. The installation steps deploys a production like OCP4 cluster, in a environment with 3 controlplanes and 3 computes on a KVM hosts running Red Hat Enterprise Linux (RHEL)

Prerequisites

Refer to the Getting Started Guide to ensure RHEL 8 is installed. You can jump back to this page one you have RHEL install. You don’t have to go through with the rest of the steps on that page.

Install OKD

Download the qubinode-installer

Download and extract the qubinode-installer as a non root user.

cd $HOME
wget https://github.com/Qubinode/qubinode-installer/archive/main.zip
unzip main.zip
rm main.zip
mv qubinode-installer-main qubinode-installer

Install OKD4

cd $HOME/qubinode-installer
./qubinode-installer -p okd4

The install will prompt with for input, one of those input is the Custom Cluster Deployment Options. You can just choose option 7 to continue with the default deployment as described in the above diagram. Or you can choose any of the other options to deploy a different size cluster.

Deploy the lastest OKD4

You can deploy the latest release of OKD4 and use the latest Fedora CorOS by following the steps below before running the qubinode-installer.

Get the lastest OKD4 release name

Grab the release name from the okd Github.

Then follow the steps below.

cd $HOME/qubinode-installer
cp samples/okd4.yml playbooks/vars/

Edit playbooks/vars/okd4.yml and upate the variable ocp4_release.

ocp4_release: 4.4.0-0.okd-2020-05-23-055148-beta5

Set newest Fedora CoreOS Qcow image tag

https://getfedora.org/en/coreos/download?tab=metal_virtualized&stream=stable FedoraCoresImage

Edit playbooks/vars/okd4.yml with the latest tag.

major_version: "32.20200601.3.0"  #e.g. 32.20200601.3.0

The Qubinode Insaller