# 国内镜像版本 - 使用阿里云镜像源
# 使用方法: docker build -f Dockerfile.china -t novel-reader:latest .

# 多阶段构建 - 构建阶段
FROM registry.cn-hangzhou.aliyuncs.com/acs/maven:3-jdk-8 AS builder

WORKDIR /app

# 配置Maven使用阿里云仓库
RUN mkdir -p /root/.m2
RUN echo '<?xml version="1.0" encoding="UTF-8"?>\n\
<settings>\n\
  <mirrors>\n\
    <mirror>\n\
      <id>aliyun</id>\n\
      <mirrorOf>central</mirrorOf>\n\
      <url>https://maven.aliyun.com/repository/public</url>\n\
    </mirror>\n\
  </mirrors>\n\
</settings>' > /root/.m2/settings.xml

# 先复制pom.xml，利用Docker缓存下载依赖
COPY pom.xml .
RUN mvn dependency:go-offline -B

# 复制源代码并构建
COPY src ./src
RUN mvn package -DskipTests -B

# 运行阶段
FROM registry.cn-hangzhou.aliyuncs.com/acs/openjdk:8-jre

WORKDIR /app

# 设置时区为中国
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# 从构建阶段复制jar包
COPY --from=builder /app/target/*.jar app.jar

# 暴露端口
EXPOSE 8080

# JVM优化参数
ENV JAVA_OPTS="-Xms128m -Xmx256m -XX:+UseG1GC -XX:MaxGCPauseMillis=100"

# 启动命令
ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]