pipeline {
  agent {
    label "swarm"
  }
  environment {
    docker_registry='dev-registry.infoclinica.ru:5000'
    docker_image='node'
  }
  parameters {
    string(
      name: "repo",
      defaultValue: "prod",
      description: "Repository to build and/or deploy from."
    )
    string(
      name: "service_update",
      defaultValue: "info_node info_node-api",
      description: "Services to update - i.e. info_node or/and info_node-api."
    )
    string(
      name: "mailto",
      defaultValue: "surkov.v@sdsys.ru",
      description: "Email which has to be notified."
    )
  }
  stages {
    stage("Build") {
      steps {
        sh "echo docker build --build-arg repo=${repo} --no-cache -t ${docker_registry}/${docker_image}:${repo}-${BUILD_NUMBER} ."
      }
    }
    stage("Publish") {
      steps {
        sh "echo docker push ${docker_registry}/${docker_image}:${repo}-${BUILD_NUMBER}"
      }
    }
    stage("Update") {
      when { expression { service_update != "" } }
      steps {
        script {
          for (String item : service_update.split()) {
            try{
              echo "Updating $item"
              sh "docker service update $item --image ${docker_registry}/${docker_image}:${repo}-${BUILD_NUMBER}"
            }
            catch(err){
              echo "Recovering service $item"
              sh "docker service rollback $item"
              throw err
            }
          }
        }
      }
    }
  }
  post {
    always {
      echo "CleaningUp work diretory"
      deleteDir()
    }
    failure {
      mail charset: 'UTF-8',
           subject: "Jenkins build error: ${BUILD_URL}",
           to: "${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>\nStage Name:</b> Publish <b><br>\nURL Build:</b> ${env.BUILD_URL}"
    }
    success {
      mail charset: 'UTF-8',
           subject: "Jenkins build USCCESS: ${BUILD_URL}",
           to: "${mailto}",
           body: "<b>Congradulations!!!</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>\nStage Name:</b> Publish <b><br>\nURL Build:</b> ${env.BUILD_URL}"
    }
  }
}