Add dockerfile

Dockerfile

@@ -0,0 +1,12 @@
+# Build stage
+FROM gradle:8.8-jdk21 AS build
+WORKDIR /home/gradle/src
+COPY --chown=gradle:gradle . .
+RUN gradle build --no-daemon
+
+# Package stage
+FROM eclipse-temurin:21-jre-jammy
+WORKDIR /app
+COPY --from=build /home/gradle/src/build/libs/*.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java","-jar","app.jar"]