FROM maven:3.9-eclipse-temurin-21-alpine AS builder
WORKDIR /app
COPY pom.xml .
COPY backend/pom.xml backend/pom.xml
RUN mvn dependency:go-offline -B -pl backend -am
COPY backend/ backend/
RUN mvn package -B -pl backend -DskipTests
RUN java -Djarmode=layertools -jar backend/target/*.jar extract --destination extracted

FROM eclipse-temurin:21-jre-alpine
WORKDIR /app
RUN addgroup -S appgroup && adduser -S appuser -G appgroup

COPY --from=builder /app/extracted/dependencies/ ./
COPY --from=builder /app/extracted/spring-boot-loader/ ./
COPY --from=builder /app/extracted/snapshot-dependencies/ ./
COPY --from=builder /app/extracted/application/ ./

RUN mkdir -p /app/uploads && chown -R appuser:appgroup /app

USER appuser
EXPOSE 8080
ENTRYPOINT ["java", "org.springframework.boot.loader.launch.JarLauncher"]