Merge branch 'ci/fetch-image-version-dynamically' into 'develop'

ci(automation): dynamically fetch image version

See merge request teraflow-h2020/controller!86

src/automation/.gitlab-ci.yml

 variables:
   IMAGE_NAME: 'automation'
-  IMAGE_TAG: '0.1.0'
   REPORTS_PATH: "src/${IMAGE_NAME}/reports"
+  BUILD_ENV: build.env
 
 # Package application needed to run tests & build the image on next stage
 build automation:
   stage: build
   script:
+    - export IMAGE_TAG=$(grep -m1 '<version>' ./src/$IMAGE_NAME/pom.xml | grep -oP  '(?<=>).*(?=<)')
+    - echo "IMAGE_TAG=${IMAGE_TAG}" >> ${BUILD_ENV}
+    - cat ${BUILD_ENV}
     - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME/ --target builder
   after_script:
     - docker images --filter="dangling=true" --quiet | xargs -r docker rmi
+  artifacts:
+    reports:
+      dotenv: ${BUILD_ENV}
   rules:
     - if: '$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" && $CI_COMMIT_BRANCH == "develop"'
@@ -29,6 +35,7 @@ unit_test automation:
     - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
     - docker rm ${REPORTS_CONTAINER} || true
   script:
+    - echo "Running tests for image ${IMAGE_TAG}"
     - docker build -t "$IMAGE_NAME:$IMAGE_TAG" -f ./src/$IMAGE_NAME/src/main/docker/Dockerfile.multistage.jvm ./src/$IMAGE_NAME/ --target unit-test
     # Transfer JaCoCo and Surefire reports from within tests image
     - docker create --name ${REPORTS_CONTAINER} "$IMAGE_NAME:$IMAGE_TAG"