Follow the documentation: https://docs.openshift.com/container-platform/4.14/machine_management/creating-infrastructure-machinesets.html 

Attempt to create the machine sets and migrate the logging subsystem 

All elastic and kibana pods will be stuck in a pending state. 

Pod unschedulable0/29 nodes are available: 23 node(s) didn't match Pod's node affinity/selector, 3 node(s) had untolerated taint {node-role.kubernetes.io/master: }, 3 node(s) had volume node affinity conflict. preemption: 0/29 nodes are available: 29 Preemption is not helpful for scheduling..

 Pods should be in a running state

  To fix this issue the infrastructure machine set has to be created with the following taints:

      taints:
      - key: node-role.kubernetes.io/infra
        effect: NoSchedule
      - key: node-role.kubernetes.io/infra
        effect: NoExecute
        value: reserved

This will resolved the pending issue and allow pods to populate to the nodes correctly.