Create Dockerfile

Author: datahubtech

Dockerfile

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+# Step 1: Use Maven with JDK 17 to build the app
+FROM maven:3.9.9-eclipse-temurin-17 AS builder
+WORKDIR /app
+COPY pom.xml .
+COPY src ./src
+RUN mvn clean package -DskipTests
+# Step 2: Use lightweight JRE 17 for running the app
+FROM eclipse-temurin:17.0.15_6-jre
+WORKDIR /app
+COPY --from=builder /app/target/back-end-0.0.1-SNAPSHOT.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java", "-jar", "app.jar"]