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Questions tagged [kubernetes-cronjob]

301 questions
162
votes
9 answers

How to automatically remove completed Kubernetes Jobs created by a CronJob?

Is there a way to automatically remove completed Jobs besides making a CronJob to clean up completed Jobs? The K8s Job Documentation states that the intended behavior of completed Jobs is for them to remain in a completed state until manually…
Josh Newman
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128
votes
7 answers

Disabling cronjob in Kubernetes

I have scheduled an application to run as a CronJob in Kubernetes. When there is a code change, I'm also changing the image of the CronJob. I'm looking for an option where I can disable the currently running CronJob and deploy a new CronJob with the…
Jasmitha Meka
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49
votes
6 answers

Cron Jobs in Kubernetes - connect to existing Pod, execute script

I'm certain I'm missing something obvious. I have looked through the documentation for ScheduledJobs / CronJobs on Kubernetes, but I cannot find a way to do the following on a schedule: Connect to an existing Pod Execute a script Disconnect I have…
user1262516
43
votes
1 answer

What does Kubernetes cronjobs `startingDeadlineSeconds` exactly mean?

In Kubernetes cronjobs, It is stated in the limitations section that Jobs may fail to run if the CronJob controller is not running or broken for a span of time from before the start time of the CronJob to start time plus startingDeadlineSeconds,…
Hesham Massoud
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35
votes
4 answers

Pods stuck in PodInitializing state indefinitely

I've got a k8s cronjob that consists of an init container and a one pod container. If the init container fails, the Pod in the main container never gets started, and stays in "PodInitializing" indefinitely. My intent is for the job to fail if the…
Anderson
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29
votes
4 answers

"kubectl create job" from CronJob fails with "error: unknown object type *v1beta1.CronJob"

I have a Kubernetes cluster with following versions: $ kubectl version Client Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.1", GitCommit:"632ed300f2c34f6d6d15ca4cef3d3c7073412212", GitTreeState:"clean",…
Gautam S. K. Singhania
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27
votes
1 answer

no matches for kind "CronJob" in version "batch/v1"

I use Kubernetes which v1.19.7, when I run the CronJob sample apiVersion: batch/v1 kind: CronJob metadata: name: express-learn-cronjob spec: schedule: "*/1 * * * *" jobTemplate: spec: template: spec: containers: …
seven
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24
votes
2 answers

access logs in cron jobs kubernetes

I'm running a CronJob in kubernetes, the jobs complete successfully and I log output to the log file inside (path: storage/logs) but I cannot access that file due to the container being in a completed state. Here is my job yaml: apiVersion:…
Jack
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22
votes
1 answer

Call endpoint from Kubernetes Cron Job

I have a webapp running in a Docker-container in a Kubernetes cluster. The app has an endpoint I want to be called periodically. The app runs at multiple nodes/pods, and it is important that only one node performs the task initiated by the endpoint.…
user1119371
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21
votes
2 answers

How to schedule a cronjob which executes a kubectl command?

How to schedule a cronjob which executes a kubectl command? I would like to run the following kubectl command every 5 minutes: kubectl patch deployment runners -p…
Chillax
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14
votes
2 answers

Disable Istio sidecar injection to the job pod

How to disable Istio sidecar injection for the Kubernetes Job? apiVersion: batch/v1beta1 kind: CronJob metadata: name: pod-restart spec: concurrencyPolicy: Forbid schedule: '0 8 * * *' jobTemplate: metadata: annotations: …
Jonas
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13
votes
1 answer

Is there a kubernetes cronjob kind which allows multiple schedules for a single container image?

If one has an image with a number of different executables, is it possible to have multiple cron entries with different commands that run at different times in the same kubernetes deployment. e.g. For some single container image named "jolly-roger",…
Rich
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12
votes
1 answer

Set retention policy for Pods created by Kubernetes CronJob

I understand that Kubernetes CronJobs create pods that run on the schedule specified inside the CronJob. However, the retention policy seems arbitrary and I don't see a way where I can retain failed/successful pods for a certain period of time.
gabbar0x
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11
votes
1 answer

Time-based scaling with Kubernetes CronJob: How to avoid deployments overriding minReplicas

I have a HorizontalPodAutoscalar to scale my pods based on CPU. The minReplicas here is set to 5: apiVersion: autoscaling/v2beta2 kind: HorizontalPodAutoscaler metadata: name: myapp-web spec: scaleTargetRef: apiVersion: apps/v1 kind:…
MDalt
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11
votes
2 answers

Scheduled restart of Kubernetes pod without downtime

I have 6 replicas of a pod running which I would like to restart\recreate every 5 minutes. This needs to be a rolling update - so that all are not terminated at once and there is no downtime. How do I achieve this? I tried using cron job, but seems…
Chillax
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