app = 'fsapi'
slack_channel = '#ci-fsws'
repo = 'fs-api.git'
branch_to_build = 'master'

pipeline {
  agent any

  options {
    buildDiscarder(logRotator(artifactDaysToKeepStr: '', artifactNumToKeepStr: '', daysToKeepStr: '', numToKeepStr: '5'))
  }

  triggers {
    pollSCM('H/5 * * * *')
  }

  environment {
    MAVEN_HOME = "${tool 'Maven3'}"
    PATH = "${MAVEN_HOME}/bin:${PATH}"
  }

  stages {
    stage('Checkout') {
      steps {
        git url: "ssh://git@bitbucket.unit.no:7999/fs/${repo}", branch: branch_to_build, credentialsId: "jenkins-unit-bitbucket"
      }
    }

    stage('Build') {
      steps {
        withMaven(maven: 'Maven3', mavenSettingsConfig: '17598675-d4d6-41a1-aca0-4803d7ba8a50') {
          sh "mvn $MAVEN_CONFIG -U -X clean package -Dfs.test=true -Dlog4j.configuration=log4j_dev.properties"
        }
      }
    }

    stage('Unit Tests') {
      steps {
        withMaven(maven: 'Maven3', mavenSettingsConfig: '17598675-d4d6-41a1-aca0-4803d7ba8a50') {
          sh "mvn test -Dfs.test=true -Dlog4j.configuration=log4j_dev.properties"
        }
      }
    }

    stage('Build Docker Image') {
      steps {
        withDockerRegistry([url: 'https://harbor.uio.no:443', credentialsId: 'harbor-ceres']) {
          script {
            def pom = readMavenPom file: 'pom.xml'
            VERSION = pom.version
          }
          sh "docker build -f hosting/api/Dockerfile --pull -t ceres-fs/${app}:${VERSION}-${env.BUILD_TIMESTAMP} ."
        }
      }
    }

    stage('Publish') {
      steps {
        withCredentials([[$class: 'UsernamePasswordMultiBinding', credentialsId: 'harbor-ceres', usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD']]) {
          withDockerRegistry([url: 'https://harbor.uio.no:443', credentialsId: 'harbor-ceres']) {
            script {
              def pom = readMavenPom file: 'pom.xml'
              VERSION = pom.version
            }
            sh "docker login -u \"${USERNAME}\" -p \"${PASSWORD}\" https://harbor.uio.no:443"
            sh "docker tag ceres-fs/${app}:${VERSION}-${env.BUILD_TIMESTAMP} harbor.uio.no:443/ceres-fs/${app}:${VERSION}-${env.BUILD_TIMESTAMP}"
            sh "docker push harbor.uio.no:443/ceres-fs/${app}:${VERSION}-${env.BUILD_TIMESTAMP}"
            sh "docker tag ceres-fs/${app}:${VERSION}-${env.BUILD_TIMESTAMP} harbor.uio.no:443/ceres-fs/${app}:prod"
            sh "docker push harbor.uio.no:443/ceres-fs/${app}:prod"
          }
        }
      }
    }
  }

  post {
    always {
      deleteDir() /* clean up our workspace */

      /* Forcefully deletes all dangling images */
      sh """#!/bin/bash
         docker images --no-trunc --all --quiet --filter='dangling=true' | xargs --no-run-if-empty docker rmi -f
         """

      /* Forcefully deletes all images older than 1 hour */
      sh """#!/bin/bash
         docker images | grep fsapi | grep -e "months\\|weeks\\|days\\|hours" | awk '{ print \$1 ":" \$2 }' | xargs --no-run-if-empty docker rmi -f
         """
    }

    success {
        slackSend channel: slack_channel, color: '#00FF00', message: "Finished publising ${app}:${VERSION} docker image. Latest commit: ${env.GIT_COMMIT}"
    }

    failure {
        slackSend channel: slack_channel, color: '#FF0000', message: "Failed to publish ${app}:${VERSION} docker image. Latest commit: ${env.GIT_COMMIT}"
    }

  }
}