Dockerfile

# Stage 1: Builder
FROM python:3.11-slim AS builder

WORKDIR /app

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

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

COPY pyproject.toml /app/
# Create dummy src structure to allow dependencies installation via pip
RUN mkdir -p /app/src && touch /app/src/__init__.py

RUN pip install --no-cache-dir --upgrade pip "setuptools>=83.0.0" && \
    pip install --no-cache-dir .

# Stage 2: Runtime
FROM python:3.11-slim AS runtime

WORKDIR /app

RUN python -m pip install --no-cache-dir --upgrade pip "setuptools>=83.0.0" wheel

RUN groupadd -g 1000 appuser && \
    useradd -u 1000 -g appuser -m -s /bin/bash appuser

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PATH="/app/.venv/bin:$PATH"

COPY --from=builder /app/.venv /app/.venv
COPY src/ /app/src/

RUN chown -R appuser:appuser /app

USER appuser

EXPOSE 8000

ENTRYPOINT ["uvicorn", "src.api.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]