I have a program that executes some code, sleeps for 10 minutes, then repeats. This continues in an infinite loop. I'm wondering if theres a way to let Kubernetes/GKE handle this scheduling.
I see that GKE offers cron scheduling. I could schedule a pod to run every 10 minutes. The problem is that in some scenarios the program could take more than 10 minutes to complete.
Ideally, I could let the pod run to completion, schedule it to run in 10 minutes, repeat. Is this possible?
Is this possible on Kubernetes?
In K8S there's a specific resource for that goal: CronJob
In the following example you see a schedule section with the tipical cron notation:
apiVersion: batch/v1beta1
kind: CronJob
metadata:
name: your-cron
spec:
schedule: "*/20 8-19 * * 1-5"
concurrencyPolicy: Forbid
jobTemplate:
spec:
template:
metadata:
labels:
app: your-periodic-batch-job
spec:
containers:
- name: redmine-cron
image: your_image
imagePullPolicy: IfNotPresent
restartPolicy: OnFailure