OpenShift Cron job to backup etcd database

etcd-backup-cron.yaml

---
apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: etcd-backup
spec:
  schedule: "0 0 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: etcd-backup
            #image: quay.io/danclark/etcd-backup:latest
            image: registry.redhat.io/rhel7/rhel-tools:latest
            imagePullPolicy: Always
            args:
            - /bin/sh
            - -c
            - chroot /host /usr/local/bin/cluster-backup.sh /home/core/assets/backup
            securityContext:
              privileged: true
              runAsUser: 0
            volumeMounts:
            - mountPath: /host
              name: host
          restartPolicy: OnFailure
          dnsPolicy: ClusterFirst
          enableServiceLinks: true
          hostNetwork: true
          hostPID: true
          securityContext: {}
          serviceAccount: default
          serviceAccountName: default
          tolerations:
          - operator: Exists
          nodeSelector:
              node-role.kubernetes.io/master: ''
          volumes:
          - hostPath:
              path: /
              type: Directory
            name: host