2.5.
$ cat << EOF > 99-worker-realtime.yaml apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: "worker" name: 99-worker-realtime spec: kernelType: realtime EOF$ oc create -f 99-worker-realtime.yaml$ oc get nodesNAME STATUS ROLES AGE VERSION ip-10-0-143-147.us-east-2.compute.internal Ready worker 103m v1.30.3 ip-10-0-146-92.us-east-2.compute.internal Ready worker 101m v1.30.3 ip-10-0-169-2.us-east-2.compute.internal Ready worker 102m v1.30.3$ oc debug node/ip-10-0-143-147.us-east-2.compute.internalStarting pod/ip-10-0-143-147us-east-2computeinternal-debug ... To use host binaries, run `chroot /host` sh-4.4# uname -a Linux <worker_node> 4.18.0-147.3.1.rt24.96.el8_1.x86_64 #1 SMP PREEMPT RT Wed Nov 27 18:29:55 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux$ oc delete -f 99-worker-realtime.yaml