Dockerfile

# ============================================
# Base
# ============================================
FROM python:3.10-slim

# ============================================
# System-level deps
# ============================================
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# ============================================
# Working directory
# ============================================
WORKDIR /app

# ============================================
# Install Python dependencies
# --------------------------------------------
# COPY requirements first for better caching
# ============================================
COPY requirements.txt .

RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# ============================================
# Copy application source code
# ============================================
COPY . .

# ============================================
# Run FastAPI server
# ============================================
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]