CronJob Properties

In Kubernetes, a CronJob is a resource type that allows you to run scheduled tasks or jobs at specific times or intervals within your cluster. It is particularly useful for automating repetitive tasks, such as backups, data processing, or maintenance activities.

CronJob Properties describes the CronJob properties:

Table 1. CronJob Properties
Name	Description
cronJob.enabled	Set this to `true` to enable cronJob in the application's Helm chart. The default value is `false`.
cronJob.jobs	The cronJob specification.
cronJob.jobs.[name].schedule	The schedule for the cronJob.
cronJob.jobs.[name].image	The image for the cronJob.
cronJob.jobs.[name].command	Defines a command for the job container.
cronJob.jobs.[name].args	Arguments for the job container.
cronJob.jobs.[name].resources	Resources for the job container.
cronJob.jobs.[name].additionalLabels	More labels for the cronJob.
cronJob.jobs.[name].annotations	Annotations for the cronJob.
cronJob.jobs.[name].successfulJobsHistoryLimit	The number of histories to keep for successful runs of the cronJob.
cronJob.jobs.[name].concurrencyPolicy	The concurrency policy of the cronJob.
cronJob.jobs.[name].failedJobsHistoryLimit	The number of histories to keep for failed runs of the cronJob.
cronJob.jobs.[name].volumeMounts	Volume mounts for the cronJob.
cronJob.jobs.[name].volumes	Volumes for the cronJob.
cronJob.jobs.[name].nodeSelector	The node selector for the cronJob.
cronJob.jobs.[name].affinity	The affinity for the cronJob.
cronJob.jobs.[name].tolerations	The tolerations for the cronJob.
cronJob.jobs.[name].restartPolicy	The restart policy for the cronJob.
cronJob.jobs.[name].imagePullSecrets	Image pull secrets for the cronJob.
cronJob.jobs.[name].activeDeadlineSeconds	The active deadline seconds for the cronJob.
cronJob.jobs.[name].backoffLimit	The back-off limit for the cronJob.
cronJob.jobs.[name].additionalPodAnnotations	More pod annotations for the cronJob.
cronJob.jobs.[name].additionalPodLabels	More pod labels for the cronJob.
cronJob.jobs.[name].topologySpreadConstraints	Topology spread constraints for the cronJob.
cronJob.jobs.[name].securityContext	The security context for the cronJob.
cronJob.jobs.[name].rbac	The role-based access control parameters for the cronJob.

This is an example of a CronJob properties configuration:

cronJob:
  enabled: true
  jobs:
    db-migration:
      schedule: "* * * 8 *"
      imagePullSecrets:
        - name: nexus-secret
      image:
        repository: docker.io/nginx
        tag: v1.0.0
      env:
        KEY:
          value: VALUE
      command: ["/bin/bash"]
      args: ["-c","sleep 5000"]
      resources:
        requests:
          memory: 5Gi
          cpu: 1