cron-jobs-in-OpenShift-SOLUTION.md

cron jobs in OpenShift

• Create a cron job say-hello in a project cron-test called that runs at 6:02 am every Sunday
• cron job runs in a pod created from the image quay.io/redhattraining/hello-world-nginx
• cron job runs the command echo Hello from the OpenShift cluster

1. Create the cron-test project
2. From the project, in Administrator view, go to Workloads->CronJobs
3. Click [Create Cronjob]
4. Fill out the yaml with the following config

apiVersion: batch/v1
kind: CronJob
metadata:
  name: say-hello
  namespace: cron-test
spec:
  schedule: '2 6 * * 0'
  jobTemplate:
    spec:
      template:
        spec:
          containers:
            - name: hello
              image: quay.io/redhattraining/hello-world-nginx
              args:
                - /bin/sh
                - '-c'
                - date; echo Hello from the OpenShift cluster
          restartPolicy: OnFailure

Once deployed, run the command oc get all to see the job in the project. Note you can change the schedule to see it run more often. */1 * * * * will make it run every minute and look at the pod logs for the message.

You can also add service accounts to a cronjob.
You can edit successful job run history in the yaml once you have created a job with the default values.

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