jenkinsfile-build-pipeline-docker

/**
* Copy of the jenkins job that creates and tags dockers for dev
* Tags are develop
*/

import groovy.json.JsonSlurper

REPO="prismcmap"
DEV_TAG="develop"
WORKSPACE_DIR="/ci-data/jenkins/workspace/BUILD-PIPELINE-DOCKER/"
def parallelStagesMap(DIRS,GIT_PREVIOUS_COMMIT,GIT_COMMIT){
  def mp = [:]
   for( String DIR : DIRS ){
    DIR = DIR.replace("/","")
    CHANGED=sh(returnStdout: true, script: "git diff --name-only ${GIT_PREVIOUS_COMMIT} ${GIT_COMMIT} ${DIR}").trim()
    try{
        DOCKER_FILE_EXISTS=sh(returnStdout: true, script: "test -f ${DIR}/Dockerfile && echo 'FILE exists.'").trim()
        if(CHANGED && DOCKER_FILE_EXISTS){
            mp.put("${DIR}",generateStage(DIR))
        }
    }
    catch(err){

    }
   }
    return mp
}

def generateStage(job) {
    return {
        stage("stage: ${job}") {
          dir("${job}") {
            sh script: "pwd"
            sh script: "docker build -t ${REPO}/${job}:${DEV_TAG} --rm=true ."
            sh script: "docker push ${REPO}/${job}:${DEV_TAG}"
        }
      }
    }
}
pipeline{
    agent any
    environment {
        DOCKERHUB_CREDENTIALS= credentials('dockerhub-cred-jasiedu')
        GIT_PREVIOUS_COMMIT=''
        GIT_COMMIT=''
    }
    stages {
        stage('Login to Docker Hub') {
           steps{
             sh 'echo $DOCKERHUB_CREDENTIALS_PSW | sudo docker login -u $DOCKERHUB_CREDENTIALS_USR --password-stdin'
             echo 'Login Completed'
           }
       }
        stage("Git Checkout"){
            steps{
	            git credentialsId: '4c3bd279-468f-4837-a095-3366964ae937', url: 'https://github.com/cmap/dockerized_mts.git' ,branch: 'dev'
	            echo 'Git Checkout Completed'
            }
        }
        stage('Configure') {
            steps {
                script {
                    GIT_PREVIOUS_COMMIT = sh(returnStdout: true, script: "git rev-parse --short 'HEAD^'").trim()
                    GIT_COMMIT=sh(returnStdout: true, script: "git rev-parse --short HEAD").trim()
                }
            }
        }
        stage('Checkout code') {
            steps {
                script {
                    DIRS=sh(returnStdout: true, script: "ls -d -- */").trim()
                    DIR_PATHS = DIRS.split("\n")
                    mp = parallelStagesMap(DIR_PATHS,GIT_PREVIOUS_COMMIT,GIT_COMMIT)
                    if(mp.size() > 0){
                      parallel mp
                    }
                }
            }
        }
    }
    post {
      always {
        cleanWs()
        dir("${env.WORKSPACE}@tmp") {
          deleteDir()
        }
        dir("${env.WORKSPACE}@script") {
          deleteDir()
        }
        dir("${env.WORKSPACE}@script@tmp") {
          deleteDir()
        }
      }
    }
}