hello world kubernetes cron job

my-cron-job.yml

---
apiVersion: batch/v1
kind: CronJob
metadata:
  name: my-cron-job
spec:
  schedule: "*/5  *  *  *  *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
            - name: cronified
              image: alpine
              command: ["echo", "Hello World!"]
          restartPolicy: Never