# PyGuardian Multi-stage Dockerfile
# Supports both controller and agent modes

FROM python:3.11-slim AS base

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

# Create pyguardian user
RUN groupadd -r pyguardian && useradd -r -g pyguardian pyguardian

# Set working directory
WORKDIR /opt/pyguardian

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy source code
COPY src/ ./src/
COPY config/ ./config/
COPY main.py .

# Set permissions
RUN chown -R pyguardian:pyguardian /opt/pyguardian

# Create data and logs directories
RUN mkdir -p /opt/pyguardian/data /opt/pyguardian/logs \
    && chown -R pyguardian:pyguardian /opt/pyguardian/data /opt/pyguardian/logs

# Controller mode
FROM base AS controller

# Expose API port
EXPOSE 8443

# Run as pyguardian user
USER pyguardian

# Set environment variables
ENV PYGUARDIAN_MODE=controller
ENV PYTHONPATH=/opt/pyguardian

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8443/health || exit 1

# Start command
CMD ["python", "main.py", "--mode", "controller"]

# Agent mode  
FROM base AS agent

# Run as pyguardian user
USER pyguardian

# Set environment variables
ENV PYGUARDIAN_MODE=agent
ENV PYTHONPATH=/opt/pyguardian

# Health check for agent
HEALTHCHECK --interval=60s --timeout=15s --start-period=30s --retries=3 \
    CMD python -c "import sys; sys.exit(0)" || exit 1

# Start command
CMD ["python", "main.py", "--mode", "agent"]

# Standalone mode (default)
FROM base AS standalone

# Expose API port (optional for standalone)
EXPOSE 8443

# Run as pyguardian user  
USER pyguardian

# Set environment variables
ENV PYGUARDIAN_MODE=standalone
ENV PYTHONPATH=/opt/pyguardian

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import sys; sys.exit(0)" || exit 1

# Start command
CMD ["python", "main.py"]