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- # syntax=docker/dockerfile:1
- FROM maven:3.9-eclipse-temurin-17 AS build
- WORKDIR /app
- # settings.xml 加速 Maven 下载，放在 cache mount 外部避免被清掉
- COPY settings.xml /root/.m2/settings.xml
- COPY pom.xml .
- # --mount=type=cache 将 .m2/repository 持久化，后续构建复用已下载的依赖
- RUN --mount=type=cache,target=/root/.m2/repository mvn dependency:go-offline -B -q
- COPY src ./src
- RUN --mount=type=cache,target=/root/.m2/repository mvn package -DskipTests -B -q
- FROM eclipse-temurin:17-jre
- # 容器默认 UTC；固定东八区，避免 LocalDateTime.now() 与 TIMESTAMP 读写偏 8 小时
- ENV TZ=Asia/Shanghai
- WORKDIR /app
- COPY --from=build /app/target/*.jar app.jar
- EXPOSE 8080
- ENTRYPOINT ["java", "-jar", "app.jar"]
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