This is the Demo jenkinsfile script for my medium blog. https://medium.com/appgambit/build-pipeline-with-jenkins-c13bf788a3f0

Jenkinsfile

pipeline {
    agent any

    stages {
        stage('Build') {
            steps {
                echo 'Building..'
            }
        }
        stage('Test') {
            steps {
                echo 'Testing..'
            }
        }
        stage('Deploy') {
            steps {
                echo 'Deploying....'
            }
        }
    }
}