Dockerfile

# Use Node.js 18 slim image
FROM node:18-slim

# Set working directory
WORKDIR /app

# Copy package files first (for better Docker caching)
COPY package*.json ./

# Install dependencies
RUN npm install

# Copy all source code
COPY . .

# Build TypeScript to JavaScript
RUN npm run build

# Change ownership to the existing node user (avoids UID conflicts)
RUN chown -R node:node /app

# Switch to non-root user for security
USER node

# Expose port 7860 (Hugging Face Spaces default)
EXPOSE 7860

# Start the game server
CMD ["npm", "start"]