Stock Data MCP Server

# Railway MCP Server Dockerfile for Stock Data
# Uses Python 3.11 slim image for optimal size and performance

FROM python:3.11-slim

# Set working directory
WORKDIR /app

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

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

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

# Copy application code
COPY stock_mcp.py .

# Expose port (Railway default)
EXPOSE 8080

# Health check endpoint
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:${PORT:-8000}')" || exit 1

# Run the MCP server with dynamic PORT
# CRITICAL: Use shell form for CMD to allow ${PORT} variable expansion
CMD python stock_mcp.py --transport sse --host 0.0.0.0 --port ${PORT:-8000}