pipeline {
  environment {
    dockerImage = ''
  }

  agent any

  stages {
    stage('Build image') {
      steps {
        sh '/usr/bin/env'
        /* This builds the actual image; synonymous to
         * docker build on the command line */
        script {
          dockerImage = docker.build("${env.imageName}:${env.GIT_LOCAL_BRANCH}")
        }
      }
    }

    stage('Test image') {
      steps {
        /* Ideally, we would run a test framework against our image.
         * For this example, we're using a Volkswagen-type approach ;-) */
        script {
          dockerImage.inside {
            sh 'echo "Tests passed"'
          }
        }
      }
    }
  
    stage('Push image') {
      steps {
        script {
          docker.withRegistry(env.dockerRegistry) {
            dockerImage.push()
          }
        }
      }
    }
   
    stage('Cleanup') {
      steps {
        sh 'echo "TODO: cleanup!"'
      }
    }
  }
}