def remote = 'registry-1-docker-io-remote'
def registry = "https://<myserver>/${remote}/"
def image = 'couchbase/server:5.5.6'

node {
    stage("login on ${registry} and pull ${image}") {
        docker.withRegistry(registry, 'IZ_USER'){
            mavenImage = docker.image(image)
            mavenImage.pull()
        }
    }
}

pipeline {
  agent none
  stages {
    stage('login and pull') {
      agent {
        docker {
          image 'maven:3.6-jdk-8-slim'
          registryUrl 'https://<myserver>/registry-1-docker-io-remote'
          registryCredentialsId 'IZ_USER'
        }
      }
      steps {
        echo 'Hello, Maven'
        sh 'mvn --version'
      }
    }
  }
}

def remote = 'registry-1-docker-io-remote'
def registry = "<myserver>/${remote}"
def image = 'couchbase/server:5.5.6'

node {
    withCredentials([usernamePassword(credentialsId: 'IZ_USER', usernameVariable: 'IZ_USERNAME', passwordVariable: 'IZ_PASSWORD')]) {
        stage("cleanup local image ${image}") {
            try {
                sh "docker rmi -f ${image}"
            } catch(e) {
                echo "Caught: ${e}"
            } finally {
                echo 'System should be clean'
            }
        }
        stage("login on ${remote}") {
            sh "docker login -u ${IZ_USERNAME} -p ${IZ_PASSWORD} ${registry}"
        }
        stage("pull ${image}"){
            sh "docker pull ${registry}/${image}"
        }
    }
}