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# 构建阶段
FROM maven:3.8.6-openjdk-8 AS builder
WORKDIR /build
# 复制pom.xml和依赖文件
COPY pom.xml .
RUN mvn dependency:go-offline -B
# 复制源代码并构建
COPY src ./src
RUN mvn package -DskipTests
# 运行阶段
FROM openjdk:8u252-jre
WORKDIR /app
# 添加非root用户
RUN addgroup --system appgroup && adduser --system appuser --ingroup appgroup
# 复制构建产物
COPY --from=builder /build/target/*.jar app.jar
# 设置权限
RUN chown -R appuser:appgroup /app
USER appuser
# 配置端口(可通过环境变量覆盖)
EXPOSE 8080
# 使用环境变量配置端口和其他参数
# 通过SPRING_PROFILES_ACTIVE可以切换不同环境配置
# 通过SERVER_PORT可以覆盖默认端口8080
# 通过DASHSCOPE_API_KEY可以配置千问API密钥
ENTRYPOINT ["java", "-jar", "app.jar"]
# 注:SpringBoot会自动识别环境变量并映射到配置属性
# SERVER_PORT -> server.port
# DASHSCOPE_API_KEY -> dashscope.api.key