SITJenkinsfile

#!bash
pipeline {
  agent {
    label 'docker'
  }
  environment {
    appName = "sample-app"
    buildconf = "false"
    dc = "false"
    DEV_NAMESPACE = "dev"
    SIT_NAMESPACE = "sit"
    DEV_API_SERVER= "https://api.cluster-89e8.89e8.sandbox1804.opentlc.com:6443"
  }
  stages {
    stage('Promote Image in SIT Namespace') {
      steps {
        script {
          try {
            withCredentials([usernamePassword(credentialsId: 'dev-ocp-credentials', passwordVariable: 'DEV_OCP_PASSWD', usernameVariable: 'DEV_OCP_USER')]) {
              echo "Using Application: ${appName}"
              sh('oc login -u $DEV_OCP_USER -p $DEV_OCP_PASSWD ${DEV_API_SERVER} -n ${SIT_NAMESPACE} --insecure-skip-tls-verify=true')
              sh "oc tag ${DEV_NAMESPACE}/${appName}:latest ${SIT_NAMESPACE}/${appName}:latest -n ${SIT_NAMESPACE}"
            }
          } catch(e) {
            print e.getMessage()
            error "${SIT_NAMESPACE} promote stage having some issue. Please check logs for more details."
          }
        }
      }
    }
    stage('Start Build to SIT Namespace') {
      steps {
        script {
          try {
            timeout(time: 600, unit: 'SECONDS') {
              withCredentials([usernamePassword(credentialsId: 'dev-ocp-credentials', passwordVariable: 'DEV_OCP_PASSWD', usernameVariable: 'DEV_OCP_USER')]) {
                sh('oc login -u $DEV_OCP_USER -p $DEV_OCP_PASSWD ${DEV_API_SERVER} -n ${SIT_NAMESPACE} --insecure-skip-tls-verify=true')
                dc = sh(script: 'oc get dc ${appName} >> /dev/null 2>&1 && echo "true" || echo "false"', returnStdout: true)
                dc = dc.trim()
                echo "Deployment Config contains: '${dc}'"

                if('true' == dc) {
                  echo "Application already exist. Hence rolling out the latest updates on the same."
                  sh """
                  oc rollout resume dc ${appName} -n ${SIT_NAMESPACE}
                  oc rollout status dc ${appName} -n ${SIT_NAMESPACE} -w
                  oc rollout pause  dc ${appName} -n ${SIT_NAMESPACE}
                  """
                  echo "Application ${appName}:${env.BUILD_NUMBER} has been successfully deployed to ${SIT_NAMESPACE} namespace."
                } else {
                  echo "Deploying the ${appName}:latest application binary to ${SIT_NAMESPACE} namespace"
                  sh """
                  oc new-app ${appName}:latest --as-deployment-config -n ${SIT_NAMESPACE}
                  oc rollout status dc ${appName} -n ${SIT_NAMESPACE} -w
                  oc rollout pause  dc ${appName} -n ${SIT_NAMESPACE}
                  """
                  echo "Application ${appName}:latest deployed successfully to ${SIT_NAMESPACE} namespace."     
                }
              }
            }
          } catch(e) {
            print e.getMessage()
            error "${SIT_NAMESPACE} start build stage having some issue. Please check logs for more details."
          }
        }
      }
    }
  }
}