Dockerfile

# Multi-stage build for RMU API Attack
FROM python:3.11-slim AS builder

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    POETRY_NO_INTERACTION=1 \
    POETRY_VENV_IN_PROJECT=1 \
    POETRY_CACHE_DIR=/tmp/poetry_cache

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Install Poetry
RUN pip install poetry==1.6.1

# Set work directory
WORKDIR /app

# Copy poetry files
COPY pyproject.toml poetry.lock* ./

# Configure poetry and install dependencies
RUN poetry config virtualenvs.create true && \
    poetry config virtualenvs.in-project true && \
    poetry install --only=main --no-root && \
    rm -rf $POETRY_CACHE_DIR

# Production stage
FROM python:3.11-slim AS production

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PATH="/app/.venv/bin:$PATH"

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create app user
RUN groupadd -r appuser && useradd -r -g appuser appuser

# Set work directory
WORKDIR /app

# Copy virtual environment from builder stage
COPY --from=builder /app/.venv /app/.venv

# Copy application code
COPY . .

# Change ownership of the app directory
RUN chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]