pipeline and improvements

Dockerfile

@@ -0,0 +1,29 @@
+FROM gradle:latest as build_backend
+
+COPY --chown=gradle:gradle /private/minis-backend /home/gradle/src
+WORKDIR /home/gradle/src
+RUN gradle buildFatJar --no-daemon
+
+FROM node:18 as build_frontend
+
+RUN mkdir -p /home/node/app/node_modules && chown -R node:node /home/node/app
+WORKDIR /home/node/app
+COPY --chown=node:node /public ./
+
+USER node
+WORKDIR /home/node/app
+RUN npm install
+RUN npm run build-only
+
+
+FROM openjdk:latest as miniplan
+LABEL authors="walamana"
+
+RUN mkdir -p /app/public
+COPY --from=build_backend /home/gradle/src/build/libs/*.jar /app/backend.jar
+COPY --from=build_frontend /home/node/app/dist /app/public
+COPY /private/minis-backend/application_docker.conf /app/application.conf
+
+WORKDIR /app
+
+ENTRYPOINT ["java", "-jar", "backend.jar", "-config=application.conf"]