ADD target/${JAR} /opt/app/r-app-catalogue/r-app-catalogue.jar
-RUN chmod -R 777 /opt/app/r-app-catalogue/config/
+RUN chmod -R 644 /opt/app/r-app-catalogue/config/
+
+RUN groupadd -g 999 appuser && \
+ useradd -r -u 999 -g appuser appuser
+RUN chown -R appuser:appuser /opt/app/r-app-catalogue/
+RUN chown -R appuser:appuser /var/log/r-app-catalogue/
+USER appuser
CMD ["java", "-jar", "/opt/app/r-app-catalogue/r-app-catalogue.jar"]