Dockerfile

FROM python:3.9-slim

WORKDIR /code

# Install system dependencies for WeasyPrint
RUN apt-get update && apt-get install -y \
    build-essential \
    python3-dev \
    python3-pip \
    python3-setuptools \
    python3-wheel \
    python3-cffi \
    libcairo2 \
    libpango-1.0-0 \
    libpangocairo-1.0-0 \
    libgdk-pixbuf2.0-0 \
    libffi-dev \
    shared-mime-info \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create templates directory if it doesn't exist
RUN mkdir -p templates

# Set environment variables
ENV FLASK_APP=app.py
ENV FLASK_ENV=production

# Run gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--timeout", "600", "app:app"]