Single Node Openshift for Maximo or something else using Red Hat Cloud Console This is an example of how to build a single-node openshift cluster on a IBM Fusion Storage box using Red Hat Cloud Console and deploy it on OpenShift Virtualization (OSV) in an OpenShift cluster
- Have access to the Bare Metal Openshift cluster on a Fusion HCI
- Have an account on https://console.redhat.com/
minimum vCPU's for a single node openshift server is 10 vCPU
pick a suitable operating system for the server, RHEL9 is a good choice, it will be replaced by CoreOS during the installation process
Be sure to uncheck "start this virtual machine after creation" and click Customize
Select a suitable server name and leave the other parameters on this page, click next
On this page, UNCHECK "Start this VirtualMachine after creation", the GUI is unfortunately very persistent in not wanting you to succeed
Select the disks tab ind edit the rootdisk
Increase the PVC size for the root disk, 600 GiB is a good number for a MAS system
...and uncheck "Start this VirtualMachine after creation"...
Next, go to Network Interfaces, and add a Network Interface. Give it a nice name and ensure that you select "nad" as Network, and "Bridge" as type
Note down the MAC address you receive for the new NIC, in this example it is 02:8e:f3:00:00:32
...and uncheck "Start this VirtualMachine after creation"...
time to click Create Machine should now be created and be in state "Stopped"
Select OpenShift in the Red Hat Hybrid Cloud Console
Click Create Cluster
Select Interactive
When installing in a Fusion HCI (and probably any other Hyper-Converged Infrastructure) add the VLAN ID. Enter a DNS, recommend to use Quad 9 (9.9.9.9) which is a safer DNS service.
and click Next
Enter the MAC address you received before and an IP address.
Select to install the Logocal Volume Manager Operator
click Next
Click Add host
and build a boot CD-ROM (Full image file) to be mounted as boot media when starting the machine, click Generate and you will get a Discovery ISO URL, copy it
Move to the machine you have prepared on the Fusion HCI and add a disk
create a new CD-ROM and set it first in boot order
wait for provisioning to be finished, ie that OSV has downloaded the ISO and stored in onto a virtual CD-ROM
after a couple of minutes...
Time to start the new single node openshift server
This is the result of a succesful installation, screenshot is from older installation in order to finalize this documentation