split bounded contexts into separate maven modules

recommendation/Dockerfile

@@ -0,0 +1,17 @@
+FROM maven:3.8.5-openjdk-17 as build
+
+COPY ../pom.xml .
+
+RUN mvn -B dependency:go-offline
+
+COPY ../src src
+
+RUN mvn -B package
+
+FROM openjdk:11-jre-slim-buster
+
+COPY --from=build ../target/recommendation.jar .
+
+EXPOSE 8081
+
+ENTRYPOINT ["java", "-jar", "recommendation.jar"]