FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1

# 系统依赖：curl 用于健康检查，default-mysql-client 提供 mysqldump，tar 已内置
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    default-mysql-client \
    tar \
    gzip \
    tzdata \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# 先安装依赖以利用 Docker 缓存
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

# 数据、日志、备份目录
RUN mkdir -p /app/data/backups /app/logs

EXPOSE 8000

# alembic 升级 + 启动 uvicorn
CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8000"]