Kubernetes CronJob

Schedule recurring, time-based Kubernetes Jobs using standard cron format for automated cluster operations.

Kubernetes CronJob is your reliable scheduler for automated cluster operations. It leverages the familiar Unix cron format (e.g., `0 2 * * *` for 2 AM daily) to create and manage `Job` objects on a repeating timetable. Use this controller for critical, routine tasks: database backups, log rotation, or generating daily reports. The CronJob controller handles execution, manages concurrency via `concurrencyPolicy`, and automatically cleans up old Job history using parameters like `successfulJobsHistoryLimit: 3`. It's the efficient, set-it-and-forget-it solution for batch workloads.

https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/