CronJob YAML Generator

A CronJob is how you run scheduled batch work in Kubernetes - nightly reports, hourly cache warming, weekly cleanups - using familiar cron syntax. It creates a Job each time the schedule fires. The CronJob YAML Generator writes that manifest from a form so you do not have to recall the batch/v1 schema.

You set the CronJob name and, optionally, a namespace and labels. Then the schedule - five-field cron syntax - plus concurrencyPolicy (Allow, Forbid or Replace), optional suspend, and history limits for successful and failed runs. The Job template carries the run parameters (backoffLimit, deadlines, TTL) and a pod template with containers and the required restartPolicy (OnFailure or Never).

The name is validated as an RFC 1123 label, the schedule and restartPolicy are required, and at least one container with a name and image is required. Problems are reported in a clear panel. Everything runs locally and nothing is uploaded.

• Cron schedule - standard five-field cron syntax.
• concurrencyPolicy - Allow, Forbid or Replace.
• suspend - pause the CronJob without deleting it.
• History limits - successful and failed Job retention.
• Job template - backoffLimit, deadlines, TTL and a pod template.
• Containers - name, image, command/args and env.
• Validation - RFC 1123 name, schedule, restartPolicy and required fields.
• Copy / Download / Print - get cronjob.yaml wherever you need it.

1. Name the CronJob. Type a valid RFC 1123 name and, optionally, a namespace.
2. Set the schedule. e.g. "0 2 * * *" for daily at 02:00.
3. Pick concurrencyPolicy and suspend. Defaults are Allow and no suspend.
4. Set history limits (optional).
5. Configure the Job template. backoffLimit, restartPolicy, containers.
6. Watch the preview and export.

Example 1 - Nightly. schedule "0 2 * * *", one container, restartPolicy OnFailure.

Example 2 - Every 5 min. schedule "*/5 * * * *".

Example 3 - Forbid overlap. concurrencyPolicy Forbid.

Example 4 - Suspend. suspend true to pause.

Example 5 - History. successfulJobsHistoryLimit 5, failedJobsHistoryLimit 2.

• No schema guesswork - valid batch/v1 output.
• Correct scheduling - cron schedule and concurrency wired in.
• Multi-container ready - add as many containers as needed.
• Validated - names, schedule and required fields checked.
• Clean output - empty fields omitted.
• Private - everything runs in the browser.
• Copy, download or print - get the manifest where you need it.