Dockerfile

# Stage 1: Build dependencies
FROM python:3.11-slim AS builder

WORKDIR /build

RUN apt-get update && \
    apt-get install -y --no-install-recommends gcc && \
    rm -rf /var/lib/apt/lists/*

RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

COPY pyproject.toml .
RUN pip install --no-cache-dir .

COPY . .
RUN pip install --no-cache-dir .

# Stage 2: Runtime
FROM python:3.11-slim

COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

RUN useradd --create-home --shell /bin/bash appuser

WORKDIR /app
COPY --from=builder /build/src ./src
COPY --from=builder /build/pyproject.toml .

RUN mkdir -p /app/data && chown appuser:appuser /app/data

USER appuser

EXPOSE 8000

CMD ["uvicorn", "entity_resolution.main:app", "--host", "0.0.0.0", "--port", "8000"]