# =============================================================
# freedom-admin 后端镜像
# 构建阶段：Maven 3.6.3 + JDK8 打包（使用阿里云镜像加速依赖下载）
# 运行阶段：JRE8 运行 jar
# =============================================================
FROM maven:3.6.3-jdk-8 AS builder
WORKDIR /build

# 配置腾讯云镜像源（腾讯云服务器内网直连，速度远快于公网阿里云）
RUN mkdir -p /root/.m2 && \
    echo '<?xml version="1.0" encoding="UTF-8"?>' > /root/.m2/settings.xml && \
    echo '<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"' >> /root/.m2/settings.xml && \
    echo '  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"' >> /root/.m2/settings.xml && \
    echo '  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">' >> /root/.m2/settings.xml && \
    echo '  <mirrors>' >> /root/.m2/settings.xml && \
    echo '    <mirror>' >> /root/.m2/settings.xml && \
    echo '      <id>tencent</id>' >> /root/.m2/settings.xml && \
    echo '      <mirrorOf>central</mirrorOf>' >> /root/.m2/settings.xml && \
    echo '      <name>Tencent Cloud Maven</name>' >> /root/.m2/settings.xml && \
    echo '      <url>https://mirrors.cloud.tencent.com/nexus/repository/maven-public/</url>' >> /root/.m2/settings.xml && \
    echo '    </mirror>' >> /root/.m2/settings.xml && \
    echo '  </mirrors>' >> /root/.m2/settings.xml && \
    echo '</settings>' >> /root/.m2/settings.xml

# 复制 pom 与源码（利用 Docker 分层缓存）
COPY pom.xml .
COPY src ./src

# 打包（跳过测试），使用 BuildKit cache mount 持久化 Maven 仓库，跨构建复用
RUN --mount=type=cache,target=/root/.m2/repository mvn -B clean package -DskipTests

# ---------- 运行阶段 ----------
FROM openjdk:8-jre-slim
WORKDIR /app

# 设置时区
RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
    echo 'Asia/Shanghai' > /etc/timezone

# 复制构建产物
COPY --from=builder /build/target/*.jar /app/app.jar

# 对外暴露端口（与 application.yml server.port 一致）
EXPOSE 8800

# 启动。数据库等敏感配置通过环境变量注入（见 docker-compose / .env）
ENTRYPOINT ["java", "-jar", "/app/app.jar"]