@Library('jenkins-library-iru@master') _
def Label = "web-registration-node-build-${UUID.randomUUID().toString()}"
pipeline {
  options {
    buildDiscarder logRotator(numToKeepStr: '10')
    disableConcurrentBuilds()
    timeout(time: 20, unit: 'MINUTES')
  }
  agent {
    kubernetes {
      label Label
      yaml libraryResource('standartPodDefinition.yaml')
    }
  }
  environment {
    CONTEXT='provision@sdsys.office'
    DOCKER_IMAGE='web-registration/node'
    HELM_GIT_URL='ssh://git@git.sdsys.ru:8022/iru/k8s.git'
    APP_GIT_URL='ssh://git@git.sdsys.ru:8022/iru/node.git'
    JENKINS_MAIL='jenkins.dev@sdsys.ru'
    DOCKER_REGISTRY='images.sdsys.ru'
    CHART_PATH=''
    HELM_DIR=''
    IMAGE_TO_PUSH=''
    VALUES_FILE = ''
  }
  parameters {
    string(
      name: "repo",
      defaultValue: "prod",
      description: "Repository to build and/or deploy from."
    )
    string(
      name: "mailto",
      defaultValue: "admin@sdsys.ru",
      description: "Email which has to be notified."
    )
  }
  stages {
    stage("Prepare to Build") {
      steps {
        script {
          echo "GIT clone ${HELM_GIT_URL}"
          gitOps.clone(HELM_GIT_URL)
          echo "Defining variables"
          HELM_DIR = dirOps.calculateDir(HELM_GIT_URL)
          CHART_PATH = HELM_DIR + "/helm/" + DOCKER_IMAGE.split("/")[0]
          VALUES_FILE = "${CHART_PATH}/dev.yaml"
          IMAGE_TO_PUSH = "${DOCKER_REGISTRY}/${DOCKER_IMAGE}:${repo}-${BUILD_NUMBER}"
        }
      }
    }
    stage("Build Image") {
      steps {
        script {
          echo "Building ${IMAGE_TO_PUSH} with Kaniko"
          ARGS = [ "repo=${repo}" ]
          k8sBuildImage.kaniko(IMAGE_TO_PUSH, ARGS)
        }
      }
    }
    stage("Update Helm Chart") {
      steps {
        script {
          TAG_PATH = "images." + DOCKER_IMAGE.split("/")[1]
          echo "Update ${TAG_PATH} to ${IMAGE_TO_PUSH} in ${VALUES_FILE}"
          def data = readYaml file: "${VALUES_FILE}"
          yamlOps.updateBuilder(TAG_PATH, data, IMAGE_TO_PUSH)
          writeYaml file: "${VALUES_FILE}", data: data, overwrite: true
        }
      }
    }
    stage("Update APP") {
      steps {
        script {
          RELEASENAME = DOCKER_IMAGE.split("/")[0]
          NAMESPACE = DOCKER_IMAGE.split("/")[0]
          try {
            echo "Update APP to ${IMAGE_TO_PUSH}"
            k8sHelmOps.upgrade(CONTEXT, NAMESPACE, RELEASENAME, CHART_PATH, VALUES_FILE)
            echo "Update success!!!"
          }
          catch(err) {
            echo "Recovering APP"
            k8sHelmOps.rollback(CONTEXT, NAMESPACE, RELEASENAME)
            throw err
          }
        }
      }
    }
    stage("Push changes to REPO") {
      steps {
        script {
          echo "Push changes to Repo"
          COMMIT = "Version update " + DOCKER_IMAGE.split("/")[1]
          gitOps.push(HELM_DIR, COMMIT)
        }
      }
    }
  }
  post {
    failure {
      mail charset: 'UTF-8',
           subject: "Jenkins build ERROR",
           mimeType: 'text/html',
           to: "${mailto}",
           body: "<b>ATTENTION!!!</b> <b><br> Jenkins job failed.\n\n <b><br>Project Name:</b> ${env.JOB_NAME} <b><br>\nBuild Number:</b> ${env.BUILD_NUMBER} <b><br>\nURL Build:</b> ${RUN_DISPLAY_URL}"
    }
  }
}