Create Countdown Job in Kubernetes.md

Problem Statement

The Nautilus DevOps team is crafting jobs in the Kubernetes cluster. While they're developing actual scripts/commands, they're currently setting up templates and testing jobs with dummy commands. Please create a job template as per details given below

• Create a job named countdown-devops

• The spec template should be named countdown-devops (under metadata), and the container should be named container-countdown-devops

• Utilize image debian with latest tag (ensure to specify as debian:latest), and set the restart policy to Never

• Execute the command sleep 5

Solution

To create a Kubernetes Job based on the provided requirements, follow these steps:

1. Create the Job Configuration

Save the following YAML configuration to a file named countdown-job.yaml:

apiVersion: batch/v1
kind: Job
metadata:
  name: countdown-devops
spec:
  template:
    metadata:
      name: countdown-devops
    spec:
      restartPolicy: Never
      containers:
      - name: container-countdown-devops
        image: debian:latest
        command:
        - bash
        - -c
        - sleep 5

2. Apply the Job Configuration

Apply the Job configuration to your Kubernetes cluster using the following command:

kubectl apply -f countdown-job.yaml

This command will create the Job in your cluster as defined in the countdown-job.yaml file.

3. Verify the Job Creation

To verify that the Job was created and is running as expected, use the following command:

kubectl get jobs.batch

Expected Output:

NAME               COMPLETIONS   DURATION   AGE
countdown-devops   0/1           9s         9s

4. Check Job Details and Logs

To get detailed information about the Job, including status and events, use:

kubectl describe job countdown-devops

To view logs for the Job's pod (helpful for debugging), first, get the pod name:

kubectl get pods --selector=job-name=countdown-devops