Running a cronjob in kubernetes

Question

I am trying to schedule Jobs in Kubernetes. The job can be created using the below command.

$ kubectl create -f ./cronjob.yaml

cronjob "hello" created

Is there any REST API using which the Job can be created from a Java client?

Answer 1

You will find the CronJobresource in the batch/v1beta1 API group. To create a new CronJob resource, you'll need a POST call to the /apis/batch/v1beta1/namespaces/{namespace}/cronjobs URL.

A respective HTTP request might look something like this:

POST /apis/batch/v1beta1/namespaces/default/cronjobs HTTP/1.1
Content-Type: application/json
Content-Length: ...
Authorization: ...
[other headers]
{
  "metadata": {
    "name": "some-cron"
  },
  "spec": {
    ...
  }
}