Jenkins Pipeline is an automation solution that lets you create simple or complex (template) pipelines via the DSL used in each pipeline. Jenkins provides two ways of developing a pipeline — scripted and declarative. Traditionally, Jenkins jobs were created using Jenkins UI called freestyle jobs. In Jenkins 2.0, Jenkins introduced a new way to create jobs using the technique called pipeline as code. In the pipeline as code technique, jobs are created using a script file that contains the steps to be executed by the job. In Jenkins, that scripted file is called a Jenkinsfile. In this Jenkins tutorial, we will take a deep dive into Jenkins Declarative Pipeline with the help of Jenkins Declarative Pipeline examples.
Let’s get started with the basics.