get_invoice_done/Dockerfile.micro at master · Kis2Show/get_invoice_done · GitHub

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# 微型镜像 - 目标<500MB
# Micro image targeting <500MB

FROM python:3.9-alpine

# 构建参数
ARG BUILDTIME
ARG VERSION
ARG REVISION

# 设置标签
LABEL org.opencontainers.image.created=${BUILDTIME}
LABEL org.opencontainers.image.version=${VERSION}
LABEL org.opencontainers.image.revision=${REVISION}
LABEL org.opencontainers.image.title="Invoice OCR System - Micro"
LABEL org.opencontainers.image.description="微型发票识别系统 - 无pandas/numpy"

# 安装系统依赖（包含EasyOCR编译所需）
RUN apk add --no-cache \
    # 基础编译工具
    gcc \
    g++ \
    musl-dev \
    linux-headers \
    make \
    cmake \
    # Python开发包
    python3-dev \
    # 图像处理库
    jpeg-dev \
    libpng-dev \
    freetype-dev \
    zlib-dev \
    # EasyOCR依赖
    libffi-dev \
    openssl-dev \
    # 运行时库
    libjpeg-turbo \
    libpng \
    freetype \
    zlib \
    # 工具
    curl \
    ca-certificates \
    git && \
    rm -rf /var/cache/apk/*

# 创建用户
RUN addgroup -g 1000 appuser && \
    adduser -D -s /bin/sh -u 1000 -G appuser appuser

# 设置工作目录
WORKDIR /app

# 升级pip并分步安装依赖
RUN pip install --no-cache-dir --upgrade pip setuptools wheel

# 安装基础依赖
RUN pip install --no-cache-dir \
    fastapi==0.104.1 \
    uvicorn==0.24.0 \
    python-multipart==0.0.6 \
    aiofiles==23.2.0 \
    jinja2==3.1.2 \
    pydantic==2.5.0 \
    requests==2.31.0

# 安装图像处理依赖
RUN pip install --no-cache-dir \
    pillow==10.1.0

# 安装PDF处理依赖
RUN pip install --no-cache-dir \
    pdfplumber==0.10.3

# 安装OCR依赖（最后安装，因为最大）
RUN pip install --no-cache-dir \
    easyocr==1.7.0

# 清理pip缓存
RUN pip cache purge && \
    # 清理编译工具（保留运行时库）
    apk del gcc g++ musl-dev linux-headers make cmake python3-dev \
            jpeg-dev libpng-dev freetype-dev zlib-dev libffi-dev openssl-dev git

# 复制应用代码
COPY --chown=appuser:appuser app/ ./app/
COPY --chown=appuser:appuser run.py ./

# 创建必要目录
RUN mkdir -p /app/data /app/invoices/pdf /app/invoices/imge /app/invoices/unrecognized /app/logs && \
    chown -R appuser:appuser /app

# 暴露端口
EXPOSE 8000

# 切换用户
USER appuser

# 设置环境变量
ENV PATH="/home/appuser/.local/bin:$PATH" \
    PYTHONPATH=/app \
    INVOICE_DIR=/app/invoices \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    OMP_NUM_THREADS=1 \
    # 使用CSV存储
    STORAGE_TYPE=csv

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/api/invoices/health || exit 1

# 启动命令
CMD ["python", "run.py"]