Jenkinsfile

@Library('common-shared') _

pipeline {
  agent {
    kubernetes {
      label 'kubedeploy-agent'
      yaml '''
      apiVersion: v1
      kind: Pod
      spec:
        containers:
        - name: kubectl
          image: eclipsefdn/kubectl:okd-c1
          command:
          - cat
          tty: true
          resources:
            limits:
              cpu: 1
              memory: 1Gi
          volumeMounts:
          - mountPath: "/home/default/.kube"
            name: "dot-kube"
            readOnly: false
        - name: jnlp
          resources:
            limits:
              cpu: 1
              memory: 1Gi
        volumes:
        - name: "dot-kube"
          emptyDir: {}
      '''
    }
  }

  environment {
    APP_NAME = 'jakartablogs-ee'
    NAMESPACE = 'foundation-internal-webdev-apps'
    IMAGE_NAME = 'eclipsefdn/jakartablogs.ee'
    CONTAINER_NAME = 'planet-venus'
    ENVIRONMENT = sh(
      script: """
        if [ "${env.BRANCH_NAME}" = "master" ]; then
          printf "production"
        else
          printf "${env.BRANCH_NAME}"
        fi
      """,
      returnStdout: true
    )
    TAG_NAME = sh(
      script: """
        GIT_COMMIT_SHORT=\$(git rev-parse --short ${env.GIT_COMMIT})
        if [ "${env.ENVIRONMENT}" = "" ]; then
          printf \${GIT_COMMIT_SHORT}-${env.BUILD_NUMBER}
        else
          printf ${env.ENVIRONMENT}-\${GIT_COMMIT_SHORT}-${env.BUILD_NUMBER}
        fi
      """,
      returnStdout: true
    )
  }

  options {
    buildDiscarder(logRotator(numToKeepStr: '10'))
  }

  triggers { 
    // build once a week to keep up with parents images updates
    cron('H H * * H') 
  }

  stages {
    stage('Build and push image') {
      agent {
        label 'docker-build'
      }
      steps {
        readTrusted 'Dockerfile'

        sh '''
          THEME_PATH="$(awk -F "=" '/output_theme/ {print $2}' planet/planet.ini | sed -e 's/^ *//' -e 's/ *$//')"
          WWW_PATH="$(awk -F "=" '/output_dir/ {print $2}' planet/planet.ini | sed -e 's/^ *//' -e 's/ *$//')"
          CACHE_PATH="$(awk -F "=" '/cache_directory/ {print $2}' planet/planet.ini | sed -e 's/^ *//' -e 's/ *$//')"
          docker build --pull \
            --build-arg THEME_PATH="${THEME_PATH}" \
            --build-arg WWW_PATH="${WWW_PATH}" \
            --build-arg CACHE_PATH="${CACHE_PATH}" \
            -t ${IMAGE_NAME}:${TAG_NAME} \
            -t ${IMAGE_NAME}:latest .
        '''
      }
    }

    stage('Push docker image') {
      agent {
        label 'docker-build'
      }
      when {
        anyOf {
          environment name: 'ENVIRONMENT', value: 'production'
          environment name: 'ENVIRONMENT', value: 'staging'
        }
      }
      steps {
        withDockerRegistry([credentialsId: '04264967-fea0-40c2-bf60-09af5aeba60f', url: 'https://index.docker.io/v1/']) {
          sh '''
            docker push ${IMAGE_NAME}:${TAG_NAME}
            docker push ${IMAGE_NAME}:latest
          '''
        }
      }
    }

    stage('Deploy to cluster') {
      when {
        anyOf {
          environment name: 'ENVIRONMENT', value: 'production'
          environment name: 'ENVIRONMENT', value: 'staging'
        }
      }
      steps {
        container('kubectl') {
          updateContainerImage([
            namespace: "${env.NAMESPACE}",
            selector: "app=${env.APP_NAME},environment=${env.ENVIRONMENT}",
            containerName: "${env.CONTAINER_NAME}",
            newImageRef: "${env.IMAGE_NAME}:${env.TAG_NAME}"
          ])
        }
      }
    }
  }

  post {
    always {
      deleteDir() /* clean up workspace */
      sendNotifications currentBuild
    }
  }
}