ci(policy): refactor gitlab-ci.yml

# See the License for the specific language governing permissions and

# limitations under the License.

variables:

  IMAGE_NAME_POLICY: 'policy'

  REPORTS_PATH_POLICY: "src/${IMAGE_NAME_POLICY}/reports"

  BUILD_ENV_POLICY: build-policy.env

# Package application needed to run tests & build the image on next stage

build policy:

  variables:

    IMAGE_NAME: 'policy' # name of the microservice

    IMAGE_NAME_TEST: 'policy-test' # name of the microservice

    IMAGE_TAG: '0.1.0' # tag of the container image (production, development, etc)

  stage: build

  script:

    - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME/ --target builder

    - export IMAGE_TAG=$(grep -m1 '<version>' ./src/$IMAGE_NAME_POLICY/pom.xml | grep -oP  '(?<=>).*(?=<)')

    - echo "IMAGE_TAG=${IMAGE_TAG}" >> ${BUILD_ENV_POLICY}

    - cat ${BUILD_ENV_POLICY}

    - docker build -t "$IMAGE_NAME_POLICY:$IMAGE_TAG" -f ./src/$IMAGE_NAME_POLICY/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME_POLICY/ --target builder

  after_script:

    - docker images --filter="dangling=true" --quiet | xargs -r docker rmi

  artifacts:

    reports:

      dotenv: ${BUILD_ENV_POLICY}

  rules:

    - if: '$CI_PIPELINE_SOURCE == "merge_request_event" && ($CI_MERGE_REQUEST_TARGET_BRANCH_NAME == "develop" || $CI_MERGE_REQUEST_TARGET_BRANCH_NAME == $CI_DEFAULT_BRANCH)'

    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "develop"'

    - changes:

        - src/$IMAGE_NAME/**

        - manifests/${IMAGE_NAME}service.yaml

        - src/$IMAGE_NAME_POLICY/**

        - manifests/${IMAGE_NAME_POLICY}service.yaml

        - .gitlab-ci.yml

# Run tests, build & push the image

unit_test policy:

  variables:

    IMAGE_NAME: 'policy' # name of the microservice

    IMAGE_NAME_TEST: 'policy-test' # name of the microservice

    IMAGE_TAG: '0.1.0' # tag of the container image (production, development, etc)

    REPORTS_CONTAINER: "${IMAGE_NAME_POLICY}-reports"

  stage: unit_test

  needs:

    - build policy

  before_script:

    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY

    - docker rm ${REPORTS_CONTAINER} || true

  script:

    - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME/ --target unit-test

    - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME/ --target release

    - docker tag "$IMAGE_NAME:$IMAGE_TAG" "$CI_REGISTRY_IMAGE/$IMAGE_NAME:$IMAGE_TAG"

    - docker push "$CI_REGISTRY_IMAGE/$IMAGE_NAME:$IMAGE_TAG"

    - echo "Running tests for image ${IMAGE_TAG}"

    - docker build -t "$IMAGE_NAME_POLICY:$IMAGE_TAG" -f ./src/$IMAGE_NAME_POLICY/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME_POLICY/ --target unit-test

    # Transfer JaCoCo and Surefire reports from within tests image

    - docker create --name ${REPORTS_CONTAINER} "$IMAGE_NAME_POLICY:$IMAGE_TAG"

    - mkdir -p ${REPORTS_PATH_POLICY}

    - docker cp ${REPORTS_CONTAINER}:/app/target/site/jacoco/index.html ${REPORTS_PATH_POLICY}/coverage.html

    - docker cp ${REPORTS_CONTAINER}:/app/target/site/jacoco/jacoco.xml ${REPORTS_PATH_POLICY}/jacoco.xml

    - docker cp ${REPORTS_CONTAINER}:/app/target/surefire-reports/ ${REPORTS_PATH_POLICY}/

    - cat ${REPORTS_PATH_POLICY}/coverage.html | grep -o 'Total[^%]*%' | sed 's/<.*>/ /; s/Total/JaCoCo Coverage Total:/'

    - docker run -v "$(pwd)/src/${IMAGE_NAME_POLICY}:/${IMAGE_NAME_POLICY}" --rm registry.gitlab.com/haynes/jacoco2cobertura:1.0.7 python /opt/cover2cover.py ${IMAGE_NAME_POLICY}/reports/jacoco.xml ${IMAGE_NAME_POLICY}/src/main/java > ${REPORTS_PATH_POLICY}/cobertura.xml

    # Build final image

    - docker build -t "$IMAGE_NAME_POLICY:$IMAGE_TAG" -f ./src/$IMAGE_NAME_POLICY/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME_POLICY/ --target release

    - docker tag "$IMAGE_NAME_POLICY:$IMAGE_TAG" "$CI_REGISTRY_IMAGE/$IMAGE_NAME_POLICY:$IMAGE_TAG"

    - docker push "$CI_REGISTRY_IMAGE/$IMAGE_NAME_POLICY:$IMAGE_TAG"

  after_script:

    - docker rm ${REPORTS_CONTAINER}

    - docker rm -f "$IMAGE_NAME_POLICY:$IMAGE_TAG"

  coverage: '/JaCoCo Coverage Total: ([0-9]{1,3})%/'

  artifacts:

    reports:

      junit:

        - ${REPORTS_PATH_POLICY}/surefire-reports/TEST-*.xml

  rules:

    - if: '$CI_PIPELINE_SOURCE == "merge_request_event" && ($CI_MERGE_REQUEST_TARGET_BRANCH_NAME == "develop" || $CI_MERGE_REQUEST_TARGET_BRANCH_NAME == $CI_DEFAULT_BRANCH)'

    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH == "develop"'

    - changes:

        - src/$IMAGE_NAME/**

        - manifests/${IMAGE_NAME}service.yaml

        - src/$IMAGE_NAME_POLICY/**

        - manifests/${IMAGE_NAME_POLICY}service.yaml

        - .gitlab-ci.yml

# Deployment of policy service in Kubernetes Cluster