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# 使用更小的 Alpine Linux + OpenJDK 17 镜像
FROM openjdk:17-jdk-alpine
# 设置工作目录
WORKDIR /app
# 创建日志目录
RUN mkdir -p /app/logs
# 创建上传文件目录
RUN mkdir -p /app/uploads
# 安装wget用于健康检查并添加应用用户安全考虑
RUN apk add --no-cache wget && \
addgroup -g 1000 appgroup && \
adduser -D -u 1000 -G appgroup appuser
# 复制jar包到容器
COPY target/*.jar app.jar
# 设置目录权限
RUN chown -R appuser:appgroup /app
# 切换到应用用户
USER appuser
# 暴露端口
EXPOSE 9200
# 设置JVM参数
ENV JAVA_OPTS="-Xms512m -Xmx1024m -Djava.security.egd=file:/dev/./urandom"
# 设置Spring Profile
ENV SPRING_PROFILES_ACTIVE=prod
# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
CMD wget --no-verbose --tries=1 --spider http://localhost:9200/actuator/health || exit 1
# 启动应用
ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]