DevOps Classroom Series – 26/Jul/2021

Working with Jenkins DSL

• Jenkins DSL (Domain Specific Language) is written in Groovy Language
• Groovy makes easier for Creating DSLs and we can use the DSL without much experience with groovy.
• In this we will be looking at scripted pipeline

node ('GOL') {
    stage('SCM') {
        git 'https://github.com/asquarezone/game-of-life.git' # Step
    }
}

• The node keyword is used to find the node on which the job can be executed

• stage clouser allows us to group individual steps which contains DSL commands and logic. Every stage needs to have a unique name

• With in the stage we write steps

• Relation b/w node, stage and steps

• Creating Jenkinsfile steps with snippet generator

• We have created a scripted pipeline script to build the game of life

node('GOL') {
    stage('scm') {
        git 'https://github.com/asquarezone/game-of-life.git'
    }
    stage('build') {
        sh 'mvn clean package'
    }
    stage('postbuild') {
        junit '**/TEST-*.xml'
        archive '**/*.war'
    }
}

• Exercise: Using the snippet generator create the Jenkinsfile for openmrs project
  • Fork the openmrs in your account
  • clone the repository into your system
  • Add a Jenkinsfile
  • IN the Jenkinsfile add scripted pipeline steps by using snippet generator