How to Build an OpenShift 4.18 Cluster on VMs: Setting Up the Network Foundation

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A developer has published the first part of a hands-on guide to deploying Red Hat OpenShift Container Platform 4.18 from scratch using virtual machines hosted on RHEL 10. The tutorial follows a platform-agnostic, bare-metal installation methodology aligned with Red Hat's DO322 training course. Part 1 focuses on configuring a Utilities Server that manages DNS, DHCP, PXE booting via Kea, TFTP/HTTP file serving, and HAProxy load balancing for the cluster. The lab topology spans nine VMs — including bootstrap, control plane, and compute nodes — all networked through a dedicated internal subnet at 192.168.110.0/24. Subsequent parts of the series will cover Ignition config generation, deployment lifecycle, troubleshooting, and post-install hardening.

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ProgrammingDEV Community ·

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