Production Environment Fixes:
- Enhanced SocketIO configuration for proxy compatibility
- Added fallback polling mechanism when WebSocket fails
- Fixed environment configuration (FLASK_ENV vs FLASK_CONFIG)
- Added production-friendly debug logging for distribution chart
- Improved connection status monitoring and error handling
Proxy-Specific Improvements:
- Enhanced CORS and transport settings for SocketIO
- Fallback to HTTP polling when WebSocket connections fail
- Better error handling and retry mechanisms
- Debug logging that works in production mode
This should resolve the wealth distribution histogram issue
when running behind Nginx proxy in Docker containers.
- Add Dockerfile with multi-stage build for Flask app containerization
- Include .dockerignore to optimize build context
- Add docker-compose.yml for easy deployment with health checks
- Update run.py to handle production mode with allow_unsafe_werkzeug
- Add DOCKER.md with comprehensive deployment instructions
- Configure health check endpoint at /health
- Run as non-root user for security
- Support for environment variables and proper port mapping
