Jenkinsfile

#
pipeline {
    agent {
        docker {
            image 'node:8.1.0'
            args '-u root'
        }
    }
    
    stages {
        stage('Preview') {
            steps {
                echo 'previewing...'
                sh 'pwd'
                sh 'ls -al'
            }
        }
        
        stage('Build') {
            steps {
                echo 'building...'
                sh 'npm install -g yarn'
                sh 'yarn install'
            }
        }
        
        stage('Test') {
            steps {
                echo 'testing...'
                sh 'npm test'
            }
        }
    }
}