Added docker-from-uberjar util folder

docker-from-uberjar/Dockerfile

@@ -0,0 +1,29 @@
+# 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)
+
+ARG home="/lsq"
+
+# Final running image
+FROM openjdk:11-jre-slim
+ARG home
+ENV HOME "$home"
+# Import the lsq-cli jar from the build step
+ADD lsq-pkg-uberjar-cli-*-jar-with-dependencies.jar "$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","$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-from-uberjar/README.md

@@ -0,0 +1,10 @@
+Helper docker file to build the image from an uberjar and thus avoid a full build.
+
+For example, this git repository might be checked out on a remote server with only docker available.
+In this case, the lsq jar could be built locally and copied to the remote server using `scp`.
+
+The filename must match the pattern: `lsq-pkg-uberjar-cli-*-jar-with-dependencies.jar`
+This is also the file generated when running `make distjar` on the project root.
+
+Once the uberjar is present, run `docker build .` to build the image.
+

docker-from-uberjar/copy-uberjar.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# In the project root, run "make distjar" to build the uberjar
+
+cp ../lsq-pkg-parent/lsq-pkg-uberjar-cli/target/lsq-pkg-uberjar-cli-*-jar-with-dependencies.jar .
+