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Configuring CronJobs in Kubernetes

Pods are not the only way to run workloads in Kubernetes. You can also use jobs to execute something once, or you can use cron jobs to execute workloads on a schedule. This lab provides an opportunity to learn about cron jobs by implementing a simple scheduled job in a working Kubernetes cluster.

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Path Info

Clock icon Intermediate
Clock icon 1h 0m
Clock icon Mar 31, 2019

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Table of Contents

  1. Challenge

    Create the cron job in the cluster

    Create a descriptor for the cron job with vi ~/cleanup-cronjob.yml.

    apiVersion: batch/v1beta1
    kind: CronJob
      name: cleanup-cronjob
      schedule: "*/1 * * * *"
              - name: data-cleanup
                image: linuxacademycontent/data-cleanup:1
              restartPolicy: OnFailure

    Create the cron job in the cluster.

    kubectl apply -f ~/cleanup-cronjob.yml
  2. Challenge

    Allow the cron job to run successfully

    Give the cron job a minute or so to run once, and then check the status.

    kubectl get cronjob cleanup-cronjob

    You should see a timestamp under LAST-SCHEDULE, indicating the job was executed.

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