perf(ci): Worker镜像瘦身 - 多阶段构建+ffmpeg静态替换+Python依赖瘦身 #340
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# ============================================================
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# Worker Dockerfile - 专门用于 Celery Worker
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# 优化：依赖分层缓存，基础大包和业务依赖分开
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# Worker Dockerfile - 优化版（多阶段构建 + 镜像瘦身）
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# 优化项：
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# 1. 多阶段构建：builder 阶段安装编译依赖，runtime 阶段只保留运行时
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# 2. ffmpeg 静态编译替换：从 apt 安装(457MB) 改为静态二进制(~80MB)
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# 3. Python 依赖瘦身：strip .so 调试符号 + 清理测试文件 + 清理缓存
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# ============================================================
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# 基础镜像：Python 3.12 + ffmpeg
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FROM git.xiaoxiajianji.com/xiaoxia/base/python:3.12-slim
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# ==================== Builder 阶段 ====================
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FROM git.xiaoxiajianji.com/xiaoxia/base/python:3.12-slim AS builder
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# 构建参数：版本号（CI 传入 commit hash）
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# 使用阿里云镜像加速
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RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
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sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true
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# 安装编译工具（仅 builder 需要）
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RUN apt-get update && apt-get install -y --no-install-recommends \
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gcc \
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g++ \
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python3-dev \
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binutils \
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wget \
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xz-utils \
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&& rm -rf /var/lib/apt/lists/*
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# ---- 下载静态编译 ffmpeg ----
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# 使用 johnvansickle.com 的静态编译版本（业界标准）
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RUN cd /tmp \
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&& wget -q https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz \
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&& tar xf ffmpeg-release-amd64-static.tar.xz \
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&& cp ffmpeg-*-amd64-static/ffmpeg /usr/local/bin/ffmpeg \
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&& cp ffmpeg-*-amd64-static/ffprobe /usr/local/bin/ffprobe \
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&& chmod +x /usr/local/bin/ffmpeg /usr/local/bin/ffprobe \
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&& rm -rf ffmpeg-*
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# ---- 安装 Python 依赖 ----
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WORKDIR /tmp
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# 创建 venv
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RUN python -m venv /opt/venv
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ENV PATH="/opt/venv/bin:$PATH"
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# 基础依赖
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COPY requirements-base.txt /tmp/requirements-base.txt
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RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com \
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-r /tmp/requirements-base.txt \
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&& rm /tmp/requirements-base.txt
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# Worker 专属大包
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COPY requirements-worker.txt /tmp/requirements-worker.txt
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RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com \
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-r /tmp/requirements-worker.txt \
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&& rm /tmp/requirements-worker.txt
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# 业务依赖
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COPY requirements.txt /tmp/requirements.txt
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RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com \
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-r /tmp/requirements.txt \
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&& rm /tmp/requirements.txt
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# ---- Python 依赖瘦身 ----
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# 1. strip .so 文件的调试符号（节省约 80-100MB）
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RUN find /opt/venv -name "*.so" -type f -exec strip --strip-all {} \; 2>/dev/null || true
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# 2. 清理测试文件（节省约 20MB）
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RUN find /opt/venv -type d -name "tests" -exec rm -rf {} + 2>/dev/null; \
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find /opt/venv -type d -name "test" -exec rm -rf {} + 2>/dev/null; \
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find /opt/venv -name "test_*.py" -delete 2>/dev/null || true
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# 3. 清理 .pyc 缓存和 __pycache__（节省约 10MB，运行时按需生成）
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RUN find /opt/venv -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null; \
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find /opt/venv -name "*.pyc" -delete 2>/dev/null || true
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# 4. 清理 dist-info 中的文档
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RUN find /opt/venv -name "*.dist-info" -type d -exec sh -c 'rm -f "$1"/DESCRIPTION.rst "$1"/INSTALLER "$1"/LICENSE* "$1"/WHEEL "$1"/entry_points.txt' _ {} \; 2>/dev/null || true
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# ==================== Runtime 阶段 ====================
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FROM git.xiaoxiajianji.com/xiaoxia/base/python:3.12-slim AS runtime
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# 构建参数：版本号
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ARG APP_VERSION=dev
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# 使用阿里云镜像加速
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RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
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sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list 2>/dev/null || true
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# 安装系统依赖
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# 安装最小运行时依赖（opencv-python-headless 需要 libglib2.0-0）
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RUN apt-get update && apt-get install -y --no-install-recommends \
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ffmpeg \
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libsm6 \
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libxext6 \
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libgl1 \
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libglib2.0-0 \
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&& rm -rf /var/lib/apt/lists/*
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# 从 builder 复制 ffmpeg 静态二进制
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COPY --from=builder /usr/local/bin/ffmpeg /usr/local/bin/ffmpeg
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COPY --from=builder /usr/local/bin/ffprobe /usr/local/bin/ffprobe
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# 从 builder 复制 Python 虚拟环境
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COPY --from=builder /opt/venv /opt/venv
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# 设置工作目录
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WORKDIR /app
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# ---- 依赖分层：基础依赖（变化少，缓存命中率高）----
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COPY requirements-base.txt /tmp/requirements-base.txt
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RUN python -m venv /opt/venv \
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&& /opt/venv/bin/pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r /tmp/requirements-base.txt \
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&& rm /tmp/requirements-base.txt
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# ---- 依赖分层：Worker 专属大包（视频处理，变化极少）----
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COPY requirements-worker.txt /tmp/requirements-worker.txt
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RUN /opt/venv/bin/pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r /tmp/requirements-worker.txt \
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&& rm /tmp/requirements-worker.txt
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# ---- 依赖分层：业务依赖（变化频繁）----
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COPY requirements.txt /tmp/requirements.txt
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RUN /opt/venv/bin/pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r /tmp/requirements.txt \
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&& rm /tmp/requirements.txt
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# 复制应用代码
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COPY apps/worker/ /app/apps/worker/
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COPY apps/api/app/config.py /app/apps/api/app/config.py
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@@ -51,7 +107,7 @@ COPY packages/ /app/packages/
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COPY alembic.ini /app/alembic.ini
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COPY migrations/ /app/migrations/
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# 复制 Worker 启动脚本（支持 WORKER_CONCURRENCY 环境变量）
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# 复制 Worker 启动脚本
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COPY infra/docker/entrypoint-worker.sh /usr/local/bin/entrypoint-worker.sh
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RUN chmod +x /usr/local/bin/entrypoint-worker.sh
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