fix: Improve JAR file handling in Dockerfile

Author: kjunh972

Dockerfile

@@ -6,10 +6,12 @@ WORKDIR /app/Location-based-target-authentication
 
 RUN chmod +x ./gradlew
 RUN ./gradlew bootJar -x test -x clean --build-cache --parallel
+RUN mkdir -p /build/libs
+RUN cp build/libs/*.jar /build/libs/
 
 FROM cloudtype/jre:17
 WORKDIR /app
-COPY --from=build /app/Location-based-target-authentication/build/libs/*.jar /app/app.jar
+COPY --from=build /build/libs/*.jar app.jar
 
 EXPOSE 8443
-ENTRYPOINT ["java", "-jar", "/app/app.jar"]
+ENTRYPOINT ["java", "-jar", "app.jar"]