def SERIAL
def PROD = [ dir: 'stack-deploy', url: 'ssh://git@git.sdsys.ru:8022/iru/stack-deploy.git', host: 'tcp://iru-swarm.infoclinica.lan:2376 DOCKER_TLS_VERIFY=1', registry: 'registry.infoclinica.ru:5000' ]
def VOLGA = [ dir: 'stack-deploy-volga', url: 'ssh://git@git.sdsys.ru:8022/iru/stack-deploy-volga.git', host: 'tcp://iru-volga.infoclinica.lan:2376 DOCKER_TLS_VERIFY=1', registry: 'risz-registry.volganet.ru:5000', service: 'info_node-api' ]
def TULA = [ dir: 'stack-deploy-tula', url: 'ssh://git@git.sdsys.ru:8022/iru/stack-deploy-tula.git', host: 'tcp://iru-tula.infoclinica.lan:2376 DOCKER_TLS_VERIFY=1', registry: 'registry.doctor71.ru:5000', service: 'info_node-api' ]
def GIT_DIR = ''
def GIT_URL = ''
def DHOST = ''
def REGISTRY = ''
def SERVICE = ''
def GIT_DIR_PROD = ''
def GIT_URL_PROD = ''
pipeline {
  agent {
    label "swarm"
  }
  options {
    disableConcurrentBuilds()
    buildDiscarder logRotator(numToKeepStr: '20')
    timeout(time: 20, unit: 'MINUTES')
  }
  environment {
    DOCKER_IMAGE='iru/node'
    DOCKER_CERT_PATH='/run/secrets/swarm'
    DEV_REGISTRY='dev-registry.infoclinica.ru:5000'
    JENKINS_MAIL='jenkins@sdsys.ru'
    NEWTAG=''
  }
  parameters {
    choice (
      choices: 'PROD\nVOLGA\nTULA',
      description: 'There is run deploy?',
      name: 'CLUSTER')
    string(
      name: "service_update",
      defaultValue: "info_node info_node-api",
      description: "Service name to update."
    )
    string(
      name: "mailto",
      defaultValue: "admin@sdsys.ru",
      description: "Email which has to be notified."
    )
  }
  stages {
    stage("Define Variables") {
      steps{
        script{
          switch (CLUSTER) {
            case 'PROD':
              GIT_DIR = PROD['dir']
              GIT_URL = PROD['url']
              DHOST = PROD['host']
              REGISTRY = PROD['registry']
              break
            case 'VOLGA':
              GIT_DIR = VOLGA['dir']
              GIT_URL = VOLGA['url']
              DHOST = VOLGA['host']
              REGISTRY = VOLGA['registry']
              SERVICE = VOLGA['service']
              break
            case 'TULA':
              GIT_DIR = TULA['dir']
              GIT_URL = TULA['url']
              DHOST = TULA['host']
              REGISTRY = TULA['registry']
              SERVICE = TULA['service']
              break
          }
        }
      }
    }
    stage("Tagging in Git") {
      steps {
        script {
          GIT_DIR_PROD = PROD['dir']
          GIT_URL_PROD = PROD['url']
          withCredentials([sshUserPrivateKey(credentialsId: 'provision', keyFileVariable: 'GIT_SSH_KEY', passphraseVariable: '', usernameVariable: 'GIT_SSH_USERNAME')]) {
            sh """GIT_SSH_COMMAND='ssh -i ${GIT_SSH_KEY} -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' \
                    git clone ${GIT_URL}
                  [ $CLUSTER != 'PROD' ] && GIT_SSH_COMMAND='ssh -i ${GIT_SSH_KEY} -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' \
                    git clone ${GIT_URL_PROD}
                  cp -f ${GIT_DIR_PROD}/tags/${DOCKER_IMAGE}.dev-version ${GIT_DIR}/tags/${DOCKER_IMAGE}.version
                  cd ${GIT_DIR}
                  git add -A
                  git config --global user.email "${JENKINS_MAIL}"
                  git config --global user.name "Jenkins"
                  git commit -m 'Version update'| grep ''     # Shield ourself from non-zero exit code from 'git commit' command
                  GIT_SSH_COMMAND='ssh -i ${GIT_SSH_KEY} -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' \
                    git push origin master
              """
          }
        }
      }
    }
    stage("Tagging and pushing to prod registry"){
      steps{
        script {
          NEWTAG=sh (script: "cat ${GIT_DIR}/tags/${DOCKER_IMAGE}.version", returnStdout: true).trim()
          sh """docker pull ${DEV_REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}
                docker tag ${DEV_REGISTRY}/${DOCKER_IMAGE}:${NEWTAG} ${REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}
                docker tag ${DEV_REGISTRY}/${DOCKER_IMAGE}:${NEWTAG} ${REGISTRY}/${DOCKER_IMAGE}:latest
                docker push ${REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}
                docker push ${REGISTRY}/${DOCKER_IMAGE}:latest
             """
        }
      }
    }
    stage("Updating service"){
      steps{
        script {
          if (CLUSTER == 'PROD') {
            for (String item : service_update.split()) {
              echo "Updating ${item}"
              try{
                sh "DOCKER_HOST=${DHOST} docker service update ${item} --image ${REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}"
              }
              catch(err){
                echo "Recovering service $item"
                sh "DOCKER_HOST=${DHOST} docker service rollback ${item}"
                throw err
              }
            }
          } else {
              try{
                echo "Updating ${SERVICE}"
                sh "DOCKER_HOST=${DHOST} docker service update ${SERVICE} --image ${REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}"
              }
              catch(err){
                echo "Recovering service ${SERVICE}"
                sh "DOCKER_HOST=${DHOST} docker service rollback ${SERVICE}"
                throw err
              }
          }

        }
      }
    }
  }
  post {
    always {
      echo "CleaningUp work diretory"
      deleteDir()
      sh "docker image rm -f `docker image ls -q ${REGISTRY}/${DOCKER_IMAGE}:${NEWTAG}`"
    }
    failure {
      mail charset: 'UTF-8',
           subject: "Jenkins build ERROR",
           mimeType: 'text/html',
           to: "${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> ${RUN_DISPLAY_URL}"
    }
    success {
      mail charset: 'UTF-8',
           subject: "Jenkins build SUSCCESS",
           mimeType: 'text/html',
           to: "${mailto}",
           body: "<b>Congradulations!!!</b> <b><br> Jenkins job succefully finished.\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}"
    }
  }
}