All Documents
Current Document
Content is empty
If you don't find the content you expect, please try another search term
Found 0 result in total
Content is empty
If you don't find the content you expect, please try another search term
Last updated：2021-05-11 10:41:40
A job performs one-time batch processing. It ensures the successful termination of one or more pods that perform batch processing. Unlike a Deployment or a StatefulSet that perpetually runs, a job will automatically exit after completion. Therefore, it is more suitable for one-time processing such as data processing and migration. This topic describes how to manage the lifecycle of a Kubernetes-native job, for example, how to create, configure, and delete a job.
To create a job, perform the following steps:
The configuration items are described as follows:
Set the key parameters of the job as required:
Currently, the following types of volumes are available: HostPath, EmptyDir, Kingsoft Cloud Elastic Block Storage, File Storage, Existing PVC, ConfigMap, and Secret.
Notes:
If you use a local disk volume without specifying a source path, a temporary path (corresponding to EmptyDir in Kubernetes storage) is allocated by default.
If you select Kingsoft Cloud Elastic Block Storage, the volume name is the ID of the EBS volume and cannot be modified.
Create containers:
This item is available when you pull images from a private image repository. This item corresponds to imagePullSecret in the YAML file.
After the configuration is completed, click Create and check the job status on the job list page.
On the job list page, you can view the running status of all jobs in the current namespace.
Instances (Successful/Total): indicates the running status of the job. Total indicates the number of repetitions specified in JobSetting. Successful indicates the number of pods that have exited.
Click the name of a job to go to the Pod List tab. In the Status column, you can view the running status of all pods.
In the Info section on the Details tab, you can view the number of pods in the Succeeded, Failed, and Running states.
To delete a job, go to the job list page and click Delete in the Operation column corresponding to the job. In the message that appears, click OK.
To delete a specific pod of a job, go to the job list page, click the job name to go to the Pod List tab, and then click Destroy Instance in the Operation column corresponding to the pod.
To create a job by using a YAML file, click Create Resources by YAML on the job list page. To update an existing job by using a YAML file, click Edit YAML in the job list. The following sample YAML file describes how to create a job to calculate π accurate to 2,000 decimal places and display the result.
pi-job.yaml:
apiVersion: batch/v1
kind: Job
metadata:
name: pi
spec:
completions: 2
parallelism: 2
template:
spec:
containers:
- name: pi
image: perl
command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
restartPolicy: Never
backoffLimit: 4Create the job
# kubect apply -f pi-job.yamlCheck the job status
# kubectl get jobPure Mode