# Stage 1: Builder (optional but good for native deps or compile-time tasks) FROM python:3.12-slim AS builder ENV PYTHONDONTWRITEBYTECODE=1 \ PYTHONUNBUFFERED=1 WORKDIR /install # Optional: install build dependencies if your requirements need it # RUN apt-get update && apt-get install -y build-essential libpq-dev && rm -rf /var/lib/apt/lists/* COPY requirements.txt . RUN pip install --prefix=/install --no-cache-dir -r requirements.txt # Stage 2: Final image FROM python:3.12-slim ENV PYTHONDONTWRITEBYTECODE=1 \ PYTHONUNBUFFERED=1 # Add non-root user RUN adduser --disabled-password --no-create-home --gecos "" appuser WORKDIR /usr/src/app # Copy installed packages COPY --from=builder /install /usr/local # Copy source code COPY . . USER appuser CMD ["python", "majordomo.py"]