Dockerfile

FROM python:3.9-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1

# Create non-root user
RUN groupadd -r chaos && useradd -r -g chaos chaos

# Set the working directory
WORKDIR /app

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

# Copy requirements.txt first to leverage Docker cache
COPY requirements.txt ./

# Upgrade pip and install dependencies
RUN pip install --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application code and configs
COPY src/ ./src/
COPY configs/ ./configs/
COPY scripts/ ./scripts/

# Create necessary directories
RUN mkdir -p /app/data /tmp && \
    chown -R chaos:chaos /app /tmp

# Switch to non-root user
USER chaos

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:5000/health || exit 1

# Expose the port your app runs on
EXPOSE 5000

# Use production WSGI server
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "2", "--timeout", "60", "--access-logfile", "-", "--error-logfile", "-", "src.app:app"]