pipeline { agent { docker { image 'node:18.18.2-alpine3.18' } } stages { stage('Build') { steps { echo 'Building..' } } stage('Test') { steps { echo 'Testing..' if (fileExists('CenaMieszkaniaDesign.py')) { echo 'Yes' } else { echo 'No' } } } stage('Deploy') { steps { echo 'Deploying....' } } } }