FROM python:3.12-slim

# r5py needs a JVM to run the R5 routing engine
RUN apt-get update && \
    apt-get install -y --no-install-recommends openjdk-21-jre-headless curl libexpat1 libgdal-dev && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY main.py .

EXPOSE 8003

CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8003"]