How to build docker images using a Declarative Jenkinsfile

Question

I'm new to using Jenkins....

I'm trying to automate the production of an image (to be stashed in a repo) using a declarative Jenkinsfile. I find the documentation to be confusing (at best). Simply put, how can I convert the following scripted example (from the docs)

node {     checkout scm     def customImage = docker.build("my-image:${env.BUILD_ID}")     customImage.push() } 

to a declarative Jenkinsfile....

Answer 1

You can use scripted pipeline blocks in a declarative pipeline as a workaround

pipeline {     agent any     stages {         stage('Build image') {             steps {                 echo 'Starting to build docker image'                  script {                     def customImage = docker.build("my-image:${env.BUILD_ID}")                     customImage.push()                 }             }         }     } }