FROM python:3.11-slim

# Prevent Python from buffering stdout/stderr so logs appear immediately
ENV PYTHONUNBUFFERED=1

# Install system dependencies (none needed for asyncpg on slim)

WORKDIR /app

# Install Python dependencies first to leverage Docker layer caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy service source code only after dependencies
COPY . /app

EXPOSE 8000

# Use Uvicorn as the ASGI server
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]