Oracle Cloud Infrastructure Documentation

Installing a Cluster with Agent-Based Installer Manually

Learn how to manually provision the OCI infrastructure for the Red Hat OpenShift Container Platform with the Agent-based Installer.

Review the Prerequisites section of this documentation before starting the cluster installation and then manually create the OCI resources discussed in OCI Resources for the Agent-based Installer for Manual Installation.

The Agent-based Installer requires setting up of several infrastructure resources using the OCI Console or your preferred automation tools. We recommend the Agent-based Installer for advanced users who:
  • Require customized infrastructure configurations not supported by the Assisted Installer and Oracle's default Terraform template.
  • Work in a disconnected (offline) environment.
The workflow for manually creating the OCI infrastructure for the Red Hat OpenShift Container Platform with the Agent-based Installer is as follows:
  1. Create the resources detailed in OCI Resources for the Agent-based Installer for Manual Installation and Prerequisites.
  2. Create the OpenShift Container Platform discovery ISO image on your local machine and use it to create a custom image in OCI's Compute service. For more information, see Creating the OpenShift Container Platform Discovery ISO Image.
  3. Create the initial control plane node for the cluster with the assigned rendezvous IP address. For more information, see Creating the OpenShift Container Platform Cluster in OCI.
  4. Create the rest of the OpenShift control plane nodes, followed by the worker nodes, using the custom image. For recommended configurations for control plane and worker nodes, see Instance Sizing Recommendations for OpenShift Container Platform Nodes.