Caching Maven Dependencies with Docker - improvements

docker/docker-caching/single-module-caching/Dockerfile

@@ -0,0 +1,15 @@
+FROM maven:alpine as build
+ENV HOME=/usr/app
+RUN mkdir -p $HOME
+WORKDIR $HOME
+ADD pom.xml $HOME
+RUN mvn verify --fail-never
+
+ADD . $HOME
+RUN mvn package
+
+FROM openjdk:8-jdk-alpine 
+
+COPY --from=build /usr/app/target/single-module-caching-1.0-SNAPSHOT-jar-with-dependencies.jar /app/runner.jar
+
+ENTRYPOINT java -jar /app/runner.jar