Updated docker file

Dockerfile

@@ -1,35 +1,37 @@
-FROM maven:3-jdk-11 as build
+# IMPORTANT: This dockerfile is merely a fallback!
+# The recommended way to build a docker image from this java project is using the jib maven plugin
+# on the module lsq-pkg-docker-cli:
+# mvn clean install
+# mvn -pl :lsq-pkg-docker-cli jib:dockerBuild
+
+# Building this Dockerfile requires buildkit:
+# Ensure { "features": { "buildkit": true } } exists in /etc/docker/daemon.json
+# (or wherever your deamon.json resides)
 
-COPY . .
-RUN mvn -Pdist,standalone clean install
+ARG home="/lsq"
 
+FROM maven:3-jdk-11 as build
+ARG home
+ENV HOME "$home"
+RUN mkdir -p "$HOME"
+WORKDIR "$HOME"
+ADD . "$HOME"
+RUN --mount=type=cache,target=/root/.m2 mvn -Pdist,standalone clean install
 
 # Final running image
 FROM openjdk:11-jre-slim
-
+ARG home
+ENV HOME "$home"
 # Import the lsq-cli jar from the build step
-COPY --from=build lsq-cli/target/lsq-cli-*-jar-with-dependencies.jar /app/lsq-cli.jar
-
-#RUN apt-get update && \
-#    apt-get install -y wget
-
-# # Install Spark for standalone context in /opt
-# ENV APACHE_SPARK_VERSION=3.2.0
-# ENV HADOOP_VERSION=3.2
-# ENV SPARK_HOME=/opt/spark
-# ENV SPARK_OPTS="--driver-java-options=-Xms1024M --driver-java-options=-Xmx2048M --driver-java-options=-Dlog4j.logLevel=info"
-# RUN wget -q -O spark.tgz https://archive.apache.org/dist/spark/spark-${APACHE_SPARK_VERSION}/spark-${APACHE_SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}.tgz && \
-#     tar xzf spark.tgz -C /opt && \
-#     rm "spark.tgz" && \
-#     ln -s "/opt/spark-${APACHE_SPARK_VERSION}-bin-hadoop${HADOOP_VERSION}" $SPARK_HOME
-
+COPY --from=build "$HOME/lsq-pkg-parent/lsq-pkg-uberjar-cli/target/"lsq-pkg-uberjar-cli-*-jar-with-dependencies.jar "$HOME/lsq-cli.jar"
 
 # Using /data as working directory that will be shared with host for input/output files
 WORKDIR /data
 VOLUME [ "/data" ]
 
-ENTRYPOINT ["java","-jar","/app/lsq-cli.jar"]
+ENTRYPOINT ["java","-jar","$HOME/lsq-cli.jar"]
 CMD ["-h"]
 
 # Usage:
-# docker run -it -v $(pwd):/data ghcr.io/aksw/lsq rx rdfize --endpoint=http://dbpedia.org/sparql virtuoso.dbpedia.log 
+# docker run -it -v $(pwd):/data ghcr.io/aksw/lsq rx rdfize --endpoint=http://dbpedia.org/sparql virtuoso.dbpedia.log
+