48 lines
2.0 KiB
Docker
48 lines
2.0 KiB
Docker
# 第一阶段：构建基础环境（这层很少变动，缓存命中率高）
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FROM ubuntu:24.04 AS builder-base
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# 1. 设置APT镜像源加速（可选，可替换为国内源如 mirrors.aliyun.com）
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RUN sed -i 's/archive.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list && \
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sed -i 's/security.ubuntu.com/mirrors.aliyun.com/g' /etc/apt/sources.list
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# 2. 一次性安装所有系统依赖和工具链（这一层如果不变，会完全复用缓存）
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RUN apt-get update && \
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apt-get install -y --no-install-recommends \
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wget gnupg ca-certificates \
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clang-19 lld-19 libc++-19-dev libc++abi-19-dev \
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mingw-w64 g++-mingw-w64 \
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tar git curl \
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&& rm -rf /var/lib/apt/lists/* && \
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update-alternatives --install /usr/bin/clang clang /usr/bin/clang-19 100 && \
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update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-19 100 && \
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update-alternatives --install /usr/bin/ld ld /usr/bin/ld.lld-19 100
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# 3. 安装xmake（独立一层，xmake更新时才需要重建）
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RUN wget -O /usr/local/bin/xmake \
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https://git.fig-lang.cn/PuqiAR/xmake-binary-copy/raw/commit/989d1f2dabb0bc8d5981a5f900c2cf7c2ac78ee4/xmake-bundle-v3.0.5.linux.x86_64 && \
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chmod +x /usr/local/bin/xmake
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# 第二阶段：创建最终镜像（极轻量）
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FROM ubuntu:24.04
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# 1. 仅复制必要的运行时文件
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COPY --from=builder-base /usr/local/bin/xmake /usr/local/bin/xmake
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COPY --from=builder-base /usr/bin/clang++ /usr/bin/clang++
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COPY --from=builder-base /usr/bin/clang /usr/bin/clang
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COPY --from=builder-base /usr/bin/ld.lld /usr/bin/ld.lld
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# 复制MinGW交叉编译器的库和头文件（关键！）
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COPY --from=builder-base /usr/x86_64-w64-mingw32 /usr/x86_64-w64-mingw32
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# 复制标准C++库
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COPY --from=builder-base /usr/lib/llvm-19 /usr/lib/llvm-19
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# 2. 创建非root用户
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RUN useradd -m -s /bin/bash builder
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# 3. 设置默认用户
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USER builder
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WORKDIR /home/builder
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# 4. 验证安装（可选）
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RUN xmake --version | head -1 && \
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clang++ --version | head -1 && \
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echo "构建环境就绪" |