Mezmo MCP Server

# Use Python 3.11 slim image for better performance and security
FROM python:3.11-slim

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

# Create non-root user for security
RUN groupadd -r mcpuser && useradd -r -g mcpuser mcpuser

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

# Set working directory
WORKDIR /app

# Copy requirements first for better Docker layer caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Change ownership to non-root user
RUN chown -R mcpuser:mcpuser /app

# Switch to non-root user
USER mcpuser

# Expose ports
EXPOSE 18080 9090

# Use proper signal handling for graceful shutdown
CMD ["python", "server.py"]