apiVersion: batch/v1
kind: CronJob
metadata:
  name: test-cronjob
  namespace: default
spec:
  schedule: "*/5 * * * *"
  successfulJobsHistoryLimit: 1
  failedJobsHistoryLimit: 1
  jobTemplate:
    spec:
      backoffLimit: 0
      template:
        spec:
          containers:
          - name: hello
            image: busybox
            args: ['/bin/sh', '-c', 'echo "Cronjob will exit ${RETURN}" ; exit $RETURN']
            securityContext:
              allowPrivilegeEscalation: false
              capabilities:
                drop:
                  - ALL
              runAsNonRoot: true
              runAsUser: 1000
            env:
              - name: RETURN
                valueFrom:
                  configMapKeyRef:
                    name: cronjob-arg
                    key: return
          restartPolicy: Never