FROM ubuntu:22.04 ENV DEBIAN_FRONTEND=noninteractive ENV PYTHONUNBUFFERED=1 # 1️⃣ 安装系统依赖 + Tesseract + 语言包 RUN apt-get update && \ apt-get install -y \ tesseract-ocr \ tesseract-ocr-chi-sim \ tesseract-ocr-eng \ python3 \ python3-pip \ && rm -rf /var/lib/apt/lists/* # 2️⃣ 设置工作目录 WORKDIR /app # 3️⃣ 先拷贝依赖清单(利用 Docker 缓存) COPY requirements.txt . # 4️⃣ 安装 Python 依赖(包含 python-dotenv) RUN pip3 install --no-cache-dir -r requirements.txt # 5️⃣ 拷贝业务代码 COPY . . # 6️⃣ 设置生产环境 Tesseract 路径环境变量 ENV TESSERACT_CMD=/usr/bin/tesseract # 7️⃣ 启动 FastAPI(单进程,稳定) CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8080"]