Machine configuration
OpenShift Container Platform 4.16
Managing and applying configuration and updates of the base operating system and container runtimes in OpenShift Container Platform
Abstract
This document provides instructions for managing changes to systemd, CRI-O, Kubelet, the kernel, and other system features by using MachineConfig, KubeletConfig, and ContainerRuntimeConfig objects. In addition, image layering allows you to easily customize the underlying node operating system by layering additional images onto the base image of any of your cluster worker nodes.