```
apiVersion: batch/v1beta1
kind: CronJob

metadata:
  name: hello

spec:
  schedule: "*/1 * * * *"  ## 每分钟执行一次
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: hello
            image: busybox
            args:
            - /bin/sh
            - -c
            - date; echo hello
          restartPolicy: OnFailure
  startingDeadlineSeconds: 10  ## job最长启动时间
  concurrencyPolicy: Allow    ## 是否允许并行运行
  successfulJobsHistoryLimit: 3  ## 允许留存历史job的个数
```