99_master-create-users-symlink.yaml

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: master
  name: 99-openshift-machineconfig-master-users-symlink
spec:
  config:
    ignition:
      version: 3.4.0
    systemd:
      units:
      - contents: |
          [Unit]
          Description=Allow systemd to create mount points on /
          DefaultDependencies=no
          Before=remote-fs.target

          [Service]
          Type=oneshot
          ExecStart=chattr -i /

          [Install]
          WantedBy=remote-fs.target
        enabled: true
        name: immutable-root-off.service
      - contents: |
          [Unit]
          Description=Set / back to immutable after mounts are done
          DefaultDependencies=no
          After=remote-fs.target

          [Service]
          Type=oneshot
          ExecStart=chattr +i /

          [Install]
          WantedBy=remote-fs.target
        enabled: true
        name: immutable-root-on.service
      - contents: |
          [Unit]
          Description=Create Users directory and mount to var
          After=immutable-root-off.service
          Before=immutable-root-on.service

          [Service]
          Type=oneshot
          ExecStartPre=rm -f /Users
          ExecStartPre=mkdir -p /var/Users
          ExecStart=ln -sf /var/Users /Users 

          [Install]
          WantedBy=multi-user.target
        enabled: true
        name: create-symlink-users.service
    networkd: {}
    passwd: {}
    storage: {}
    osImageURL: ""