17. docker deployment

COBY/Dockerfile

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+# Multi-stage Docker build for COBY Multi-Exchange Data Aggregation System
+FROM python:3.11-slim as base
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PYTHONPATH=/app \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    gcc \
+    g++ \
+    libpq-dev \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create app user
+RUN groupadd -r coby && useradd -r -g coby coby
+
+# Set work directory
+WORKDIR /app
+
+# Copy requirements first for better caching
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create necessary directories
+RUN mkdir -p logs data && \
+    chown -R coby:coby /app
+
+# Switch to non-root user
+USER coby
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:8080/health', timeout=5)" || exit 1
+
+# Default command
+CMD ["python", "-m", "COBY.main"]
+
+# Development stage
+FROM base as development
+
+USER root
+
+# Install development dependencies
+RUN pip install --no-cache-dir pytest pytest-asyncio pytest-cov black flake8 mypy
+
+# Install debugging tools
+RUN apt-get update && apt-get install -y \
+    vim \
+    htop \
+    net-tools \
+    && rm -rf /var/lib/apt/lists/*
+
+USER coby
+
+# Override command for development
+CMD ["python", "-m", "COBY.main", "--debug"]
+
+# Production stage
+FROM base as production
+
+# Copy only necessary files for production
+COPY --from=base /app /app
+
+# Set production environment
+ENV ENVIRONMENT=production \
+    DEBUG=false \
+    LOG_LEVEL=INFO
+
+# Expose ports
+EXPOSE 8080 8081
+
+# Use production command
+CMD ["python", "-m", "COBY.main"]