first commit with existing project files

demo-api/Dockerfile

@@ -0,0 +1,20 @@
+FROM maven:3.9.6-eclipse-temurin-21 AS build
+
+WORKDIR /app
+
+COPY pom.xml .
+COPY src ./src
+
+RUN mvn clean package -DskipTests
+
+
+FROM eclipse-temurin:21-jre
+
+WORKDIR /app
+
+COPY --from=build /app/target/*.jar app.jar
+
+
+EXPOSE 8080
+
+ENTRYPOINT ["java", "-jar", "app.jar"]