Jenkinsfile.ext-icp

// Basic Pipeline

def clusterCredsID = env.CLUSTER_CREDENTIALS ?: "icp-credentials"
def registryUrl = env.REGISTRY_URL ?: "mycluster.icp:8500"
def userName = env.USERID ?: "anonymous"
def releaseName = "pbw-liberty-mariadb-" + userName

pipeline {
    environment {
         REGISTRY_URL = "${registryUrl}"
         MAJOR_PREFIX = "1.0.0"
         RELEASE_NAME = "pbw-liberty-mariadb-${userName}"
         REGISTRY_NS = "${DEPLOYMENT_NS}"
    }

    tools {
        maven 'Apache Maven 3.0.5'
        jdk 'IBM JDK 8.0'
    }

    agent { label 's390x' }

    stages {
         stage ('Initialize') {
            steps {
                sh '''
                  #!/bin/bash
                 echo "REGISTRY_URL = ${REGISTRY_URL}"
                 echo "DEPLOYMENT_NS = ${DEPLOYMENT_NS}"
                 echo "USERID = ${USERID}"
                 echo "RELEASE_NAME = ${RELEASE_NAME}"
                '''
            }
         }

        stage('Build application ear file') {
          steps {
              checkout scm
              sh 'mvn clean package -DuserName=${USERID}'
          }
        }

       stage('Build Docker Image') {
            steps {
                script {
                   echo "docker build -t ${REGISTRY_URL}/${REGISTRY_NS}/pbw-mariadb-web:${MAJOR_PREFIX}.${BUILD_NUMBER} ."
                   sh 'sudo docker build -t ${REGISTRY_URL}/${REGISTRY_NS}/pbw-mariadb-web:${MAJOR_PREFIX}.${BUILD_NUMBER} .'
                }

            }
       }

       stage('Push Docker Image to Registry') {
          steps {
             withCredentials([usernamePassword(credentialsId: clusterCredsID,
                                          usernameVariable: 'USERNAME',
                                          passwordVariable: 'PASSWORD')]) {
                 sh """
                 #!/bin/bash
                 sudo docker login -u ${USERNAME} -p ${PASSWORD} ${env.REGISTRY_URL}
                 sudo docker push ${env.REGISTRY_URL}/${env.REGISTRY_NS}/pbw-mariadb-web:${env.MAJOR_PREFIX}.${env.BUILD_NUMBER}
                 """
             }
           }
       }
       stage('Deploy new Docker Image') {
            steps {
                echo 'Deploying....'
                withCredentials([usernamePassword(credentialsId: clusterCredsID,
                                             usernameVariable: 'USERNAME',
                                             passwordVariable: 'PASSWORD')]) {
                    sh """#!/bin/bash
                    cloudctl login -u ${USERNAME} -p ${PASSWORD} -n ${env.DEPLOYMENT_NS} -a ${env.CLUSTER_URL}                   
                    DEPLOYMENT=`kubectl --namespace=${env.DEPLOYMENT_NS} get deployments -l app=pbw-liberty-mariadb,component=web-app,release=${env.RELEASE_NAME} --no-headers  -o name`
                    if [ -z "\$DEPLOYMENT"  ]; then
                       echo "FATAL ERROR: Deployment not found, exiting pipeline"
                       exit 22
                    else
                       echo "Existing deployment found, updating to point to image just created "
                    fi
                    kubectl --namespace=${env.DEPLOYMENT_NS} get \${DEPLOYMENT} --no-headers -o custom-columns=":metadata.name"
            
                    # Update Deployment
                    kubectl --namespace=${env.DEPLOYMENT_NS} set image \${DEPLOYMENT} ${env.RELEASE_NAME}-liberty=${env.REGISTRY_URL}/${env.REGISTRY_NS}/pbw-mariadb-web:${env.MAJOR_PREFIX}.${env.BUILD_NUMBER}
                    kubectl --namespace=${env.DEPLOYMENT_NS} rollout status \${DEPLOYMENT}
                    """
                }

            }
        }
    }
}