Jenkins Local

Prerequisites

• Configure your local development environment.

• Assumes deploying to minikube

• using the VirtualBox driver

• helm v3 CLI installed

• envsubst installed

• kubectl installed

• kubernetes-chart git repository cloned

Starting Jenkins Locally

./run-local.sh local

# Copy Paste this

export POD_NAME=$(kubectl get pods --namespace jenkins -l "app.kubernetes.io/component=jenkins-master" -l "app.kubernetes.io/instance=jenkins" -o jsonpath="{.items[0].metadata.name}")

# Check if Jenkins is running. Make sure you are not connected to VPN

kubectl get pods -n jenkins -w

# Once running. Port forward the localhost to Jenkins Pod

kubectl --namespace jenkins port-forward $POD_NAME 8080:8080

Default User name and password is part of the tmpl file. Credentials are admin/admin

In K8s plugin. If Pod is not creating. Check your POD TEMPLATE SYNTAX or If you add hostPath in the POD template and container has no access to the host folder.

Using Image from private Docker Image Repo

• AWS ECR is usually a private repo

• Download the inside the Minikube

# Use Minikube as the docker ENV

eval $(minikube -p minikube docker-env)

# Assume the admin role that has access to ECR

source assume main 123456

# Login to ECR

aws ecr get-login-password --region ap-southeast-1 | docker login --username AWS --password-stdin 929981421241.dkr.ecr.ap-southeast-1.amazonaws.com

# Pull the needed image. This will copy the image in Minikube, not in local

docker pull 929981421241.dkr.ecr.ap-southeast-1.amazonaws.com/diginex-cli:latest

# Disconnect the Local to Minikube

eval $(minikube -p minikube docker-env -u)

Check if the Local Library is properly Setup

• Create a Test Pipeline Job 01Pipeline

• Go to Main Configuration and Load Library Implicitly!

• Add the following codes.

• Review the Jenkins Logs.

@Library('jenkins-global-libraries') _

pipeline {

agent {

kubernetes {

yaml '''

apiVersion: v1

kind: Pod

spec:

containers:

- name: shell

image: alpine/git:v2.26.2

command:

- sleep

args:

- infinity

'''

defaultContainer 'shell'

}

}

stages {

stage('Test') {

steps {

sh 'hostname'

sh 'env'

// ADD CODE HERE THAT CALLS LOCAL LIB

}

}

}

}

Check if the image is properly used in Local

• Create a Test Pipeline Job

• Download the inside the Minikube

Adding Jenkins Shared Libraries in Local

• No need to git checkin to test jenkins libraries.

Run the Jenkins Job Builder Locally

• You need a Token for "admin "user config page and generate token

• Go to http://localhost:8080/user/admin/configure

• 
  

• 
  

Error Handling

ANS: Go to main Library and check the LOAD IMPLICITY

ANS: Generate new token for admin user