How to check if I have enough permission to start a cron job-CodePudding

I have two applications running in K8s, 1 application run as deployment, the other application run as cronjob. Suppose that this application will trigger the cronjob run in some situation. However, it works before but now it fails. I suspect may because the K8s admin has some permission / role restriction apply.

try {
    v2alpha1CronJob = batchV2alpha1Api.readNamespacedCronJob('A-CRONJOB-NAME', 'A-NAMESPACE', null, null, null);
} catch (Exception e) {
    // Here I get error, it promot me error as following
}

Error is:

Error trying to manipulate k8s CronJob {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"the server could not find the requested resource","reason":"NotFound","details":{},"code":404}

Would I know what I should do now? My k8s server version is 1.21.5

CodePudding user response：

The error that shows specifies that it is not finding the resource, 404 error. If it were a problem with the permissions you would have the 403 error.

"message":"the server could not find the requested resource"

You should check if the requested resource is the correct one or if it really exists.

CodePudding user response：

The description for the CronJob in the question contains batchV2alpha1Api. This means that the version of the API group is batch/v2alpha1.

But in the error description there is another version of the API group "apiVersion":"v1" - batch/v1.

Due to this difference, the CronJob cannot be created, as there is no required version of the Kubernetes API to create this object.

To fix this problem you can:

Change the apiVersion in the description for CronJob with the version currently used by Kubernetes

Enable required API group and don't change the description.