Managing Kubernetes Jobs

You can use Lens AppIQ to manage Jobs using a simple definition file.

Lens AppIQ automatically creates job-related objects required by Kubernetes to run your jobs.

Lens AppIQ reduces the learning curve associated with Kubernetes adoption, simplifies the deployment process, and gives you a job context view post-deployment.

The sections below describe how you can manage your job's lifecycle on Kubernetes using Lens AppIQ.

Run Jobs

Job can be deployed in the context of an environment.

📘
Environment
You can deploy application to a target namespace in a cluster. To do this you should create an environment, for details see: Managing Environments

Deploy a job using a definition file.

Below is a sample job YAML file for job pi-job that executes a pi function in a container

name: pi-job 
type: Job 
description: “This is Pi Job”
environment: cluster-abc-staging
team: dev
parallelism: 1
completions: 1 # Optional, default 1. Required only with parallelism
suspend: true # Optional, default false - only available with k8s >=1.21
backOffLimit: 2  # Optional, default 6
command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"] # Required
policy: # Optional
    restartPolicy: Never
containers:
    - name: pi
      image: perl:5.34
      command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
    - name: rootdir
      image: ubuntu
      command: ["ls", "/"]

lapps job run pijob.yaml

Cron Job

Lens AppIQ supports running Kubernetes Cron Jobs.

name: pi-job
type: Job 
description: “This is Pi Job”
environment: cluster-abc-staging
team: dev
parallelism: 1
completions: 1 # Optional, default 1. Required only with parallelism
suspend: false # Optional, default false - only available with k8s >=1.21
backOffLimit: 2  # Optional, default 6
command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"] # Required
policy: # Optional
    restartPolicy: Never
    concurrencyPolicy: Allow
sechdule: "* * * * *"
successfulJobsHistoryLimit: 3
failedJobsHistoryLimit: 1

containers:
    - name: pi
      image: perl:5.34
      command: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
    - name: rootdir
      image: ubuntu
      command: ["ls", "/"]

Run cron job:

lapps job run cronjob.yaml

List Cron Job

$ lapps job list                                      
+--------+--------------------------+-----------------------------------+---------+------------+-------------+------------------+----------------+---------------+------------------------------------+----------+
| Job    | ID                       | Created At                        | Version | Framework  | Description | Teams            | Owner          | Cluster       | Status                             | Schedule |
+--------+--------------------------+-----------------------------------+---------+------------+-------------+------------------+----------------+---------------+------------------------------------+----------+
| pi-job | 62d0a3be8b75b700011f371d | 2022-07-14 23:16:14.926 +0000 UTC |         | framework1 |             | shipa-admin-team | [email protected] | shipa-cluster | 1 Running / 0 Succeeded / 0 Failed |          |
+--------+--------------------------+-----------------------------------+---------+------------+-------------+------------------+----------------+---------------+------------------------------------+----------+

List Job

lapps job list

+--------+--------------------------+-----------------------------------+---------+-----------+-------------+------------------+------------------------+---------------+
| Job    | ID                       | Created At                        | Version | Framework | Description | Teams            | Owner                  | Cluster       |
+--------+--------------------------+-----------------------------------+---------+-----------+-------------+------------------+------------------------+---------------+
| pi-job | 61f44f23a66d43000196c32d | 2022-01-28 20:16:35.485 +0000 UTC |         | framework1|             | dev              | [email protected]         | shipa-cluster |
+--------+--------------------------+-----------------------------------+---------+-----------+-------------+------------------+------------------------+---------------+

Job Info

lapps job info pi-job

Name: pi-job
ID: 61f44f23a66d43000196c32d
Version: 
Framework: framework1
Description: 
Created: 2022-01-28 20:16:35.485 +0000 UTC
Teams: dev
Owner: [email protected]
Cluster: shipa-cluster
Commands:
+---------+--------+-----------------+
| Name    | Image  | Commands        |
+---------+--------+-----------------+
| pi      | perl   | perl            |
|         |        | -Mbignum=bpi    |
|         |        | -wle            |
|         |        | print bpi(2000) |
+---------+--------+-----------------+
| rootdir | ubuntu | ls              |
|         |        | /               |
+---------+--------+-----------------+

Remove Job

lapps job remove JOB_NAME