DevConf.US 2025

OpenShift Installations: From Nothing to Cluster
2025-09-20 , 101 (Capacity 48)

This talk provides an in-depth, technical discussion of how OpenShift clusters are created. Beginning with the design of the installer and following an installation linearly, the talk explains how the installer uses a directed-acyclic asset graph to generate resources required for a cluster, bundles those resources into ignition, creates cloud infrastructure using cluster-api, and depends on cluster operators to complete installation. This talk will also explain the recent replacement of Terraform with cluster-api controllers.


What level of experience should the audience have to best understand your session?

Intermediate - attendees should be familiar with the subject

Patrick is the engineering lead for the OpenShift Installer team. He received a Master's Degree in Computer Engineering at Boston University as part of the LEAP Program. He lives in Milton, Massachusetts with his wife and two children.