project = "alpine"
repo = "zknt"
version = "3.12.1"
registry = "reg.zknt.org"
registry_credentials = "6ff44976-23cd-4cc2-902c-de8c340e65e5"
timeStamp = Calendar.getInstance().getTime().format('YYYY-MM-dd',TimeZone.getTimeZone('UTC'))

pipeline {
  agent any
  stages {
    stage('Build image') {
      steps {
        withDockerRegistry([ credentialsId: registry_credentials, url: "https://"+registry ]) {
          echo 'Starting to build docker image'
          script {
            def customImage = docker.build(registry+'/'+repo+'/'+project, "--pull --build-arg VERSION=$version --build-arg DATE=$timeStamp .")
            customImage.push(version)
            customImage.push(version.split(/\./)[0,1].join('.'))
            customImage.push(version.split(/\./)[0])
            customImage.push("latest")

            def io_registry_credentials = "3deeee3d-6fce-4430-98dd-9b4db56f43f7"
            withDockerRegistry([ credentialsId: io_registry_credentials ]) {
              def official_image = repo+'/'+project+':'+version.split(/\./)[0,1].join('.')
              sh "docker image tag " + registry+'/'+repo+'/'+project+':'+version + ' ' + official_image
              sh "docker image tag " + registry+'/'+repo+'/'+project+':'+version + ' ' + official_image.split(/\:/)[0]
              sh "docker push " + official_image
              sh "docker push " + official_image.split(/\:/)[0]
            }

            def quay_credentials= "18fb6f7e-c6bc-4d06-9bf9-08c2af6bfc1a"
            withDockerRegistry([ credentialsId: quay_credentials, url: "https://quay.io" ]) {
              def official_image = 'quay.io/'+repo+'/'+project+':'+version.split(/\./)[0,1].join('.')
              sh "docker image tag " + registry+'/'+repo+'/'+project+':'+version + ' ' + official_image
              sh "docker image tag " + registry+'/'+repo+'/'+project+':'+version + ' ' + official_image.split(/\:/)[0]
              sh "docker push " + official_image
              sh "docker push " + official_image.split(/\:/)[0]
            }
          }
        }
      }
    }
  }

  post {
    success {
      sh """docker rmi -f \$(docker images -q $registry/$repo/$project:$version)"""
      sh """for image in \$(grep FROM Dockerfile | cut -d ' ' -f 2); do docker rmi -f \$(docker images -q \${image}); done"""
    }
    always {
      emailext body: 'build finished', subject: '[jenkins] docker '+project+': ' + currentBuild.result, to: 'cg@zknt.org', from: 'sysadm@zknt.org', attachLog: true
    }
  }
  options {
    buildDiscarder(BuildHistoryManager([
      [
        conditions: [
          BuildResult(matchFailure: true)
        ],
        matchAtMost: 4,
        continueAfterMatch: false
      ],
      [
        conditions: [
          BuildResult(matchSuccess: true)
        ],
        matchAtMost: 4,
        continueAfterMatch: false
      ],
      [
        conditions: [
          BuildResult(matchSuccess: true, matchFailure: true)
        ],
        actions: [DeleteBuild()]
      ]
    ]))
  }
}