ntp on ocp4

NTP - MCO

chronybase64=$(cat << EOF | base64 -w 0
server 0.fi.pool.ntp.org iburst
server 1.fi.pool.ntp.org iburst
server 2.fi.pool.ntp.org iburst
server 3.fi.pool.ntp.org iburst
driftfile /var/lib/chrony/drift
makestep 1.0 3
rtcsync
keyfile /etc/chrony.keys
leapsectz right/UTC
logdir /var/log/chrony
EOF
)

cat << EOF > 50-worker-chrony.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: worker
  name: 50-worker-chrony
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,${chronybase64}
        filesystem: root
        mode: 0644
        overwrite: true
        path: /etc/chrony.conf
EOF


cat << EOF > 50-master-chrony.yaml
apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  labels:
    machineconfiguration.openshift.io/role: master
  name: 50-master-chrony
spec:
  config:
    ignition:
      version: 3.1.0
    storage:
      files:
      - contents:
          source: data:text/plain;charset=utf-8;base64,${chronybase64}
        filesystem: root
        mode: 0644
        overwrite: true
        path: /etc/chrony.conf
EOF

oc apply -f 50-worker-chrony.yaml
oc apply -f 50-master-chrony.yaml