Deploy Jenkins on Kubernetes Kodekloud

 

Question: The Nautilus DevOps team is planning to set up a Jenkins CI server to create/manage some deployment pipelines for some of the projects. They want to set up the Jenkins server on Kubernetes cluster. Below you can find more details about the task:

1) Create namespace jenkins

2) Create a Service for jenkins deployment. Service name should be jenkins-service under jenkins namespace, type should be NodePort, targetport should be 8080 and nodePort should be 30008

3) Create a Jenkins Deployment under jenkins namespace, It should be name as jenkins-deployment , labels app should be jenkins , container name should be jenkins-container , use jenkins/jenkins image , containerPort should be 8080 and replicas count should be 1.

Make sure to wait for pods to be in running state before clicking on Finish button.

Note: The kubectl utility on jump_host has been configured to work with the kubernetes cluster.

Solution:

Create the mentioned namespace at first

kubectl create ns jenkins

Then create the service and deployment yaml according to question

vi jenkins-deployment.yaml

apiVersion: v1

kind: Service

metadata:

name: jenkins-service

namespace: jenkins

spec:

type: NodePort

selector:

app: jenkins

ports:

- port: 8080

targetPort: 8080

nodePort: 30008

---

apiVersion: apps/v1

kind: Deployment

metadata:

name: jenkins-deployment

namespace: jenkins

labels:

app: jenkins

spec:

replicas: 1

selector:

matchLabels:

app: jenkins

template:

metadata:

labels:

app: jenkins

spec:

containers:

- name: jenkins-container

image: jenkins/jenkins

ports:

- containerPort: 8080

Apply the deployment

kubectl apply -f jenkins-deployment.yaml

Wath the pod

watch kubectl get po -n jenkins

Check the service

kubectl get svc -n jenkins

Run curl command from the pod to check the deployment

kubectl exec jenkins-deployment-6b6c78f968-7s8c4 -n jenkins -- curl http://localhost:8080

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About Ashadullah Shawon

I am Ashadullah Shawon. I am a Software Engineer. I studied Computer Science and Engineering (CSE) at RUET. I Like To Share Knowledge. Learn More: Click Here