Added Dockerfile and CI

.gitlab-ci.yml

+stages:
+  - test
+  - dockerize
+
+deploy:
+  stage: dockerize
+  tags:
+    - shell
+  only:
+    - master
+  script:
+    - docker login -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
+    - docker build -t "${CI_REGISTRY_IMAGE}" .
+    - docker push "${CI_REGISTRY_IMAGE}"

Dockerfile

+FROM git.ia2.inaf.it:5050/ia2/ia2-devops/maven_npm
+
+ADD vospace-ui-frontend/package.json /vospace-ui-frontend/
+WORKDIR /vospace-ui-frontend
+RUN npm install
+
+ADD vospace-ui-backend/pom.xml /vospace-ui-backend/
+WORKDIR /vospace-ui-backend
+RUN mvn initialize
+
+ADD vospace-ui-frontend/src /vospace-ui-frontend/src/
+ADD vospace-ui-frontend/public /vospace-ui-frontend/public/
+ADD vospace-ui-frontend/*.js /vospace-ui-frontend/
+ADD vospace-ui-frontend/*.json /vospace-ui-frontend/
+ADD vospace-ui-frontend/.env.production /vospace-ui-frontend/
+WORKDIR /vospace-ui-frontend
+RUN npm run build
+
+ADD vospace-ui-backend/src /vospace-ui-backend/src/
+ADD vospace-ui-backend/pom.xml /vospace-ui-backend/
+
+WORKDIR /vospace-ui-backend
+
+RUN mvn clean package -DskipTests -Pinclude-gui
+
+FROM openjdk:14-jdk-alpine
+COPY --from=0 /vospace-ui-backend/target/vospace-ui.jar /vospace-ui.jar
+ENTRYPOINT ["java","-jar","/vospace-ui.jar"]