Deploying Reflex: A Comprehensive Guide to Production-Ready Docker Deployment

Aug 12, 2025

Introduction to Reflex

Reflex is a powerful framework designed for building interactive web applications with ease. This guide will walk you through deploying Reflex in production mode using Docker, ensuring a streamlined setup that leverages Redis for state management.

Main Features of Reflex

  • Single HTTP Port Deployment: Reflex runs on port 8080, simplifying access and configuration.
  • Redis Integration: A local Redis server is included to manage user state efficiently.
  • Layer Caching: Optimized for Python, Reflex, and Node dependencies to enhance performance.
  • Multi-Stage Build: Reduces the final image size, making it suitable for memory-constrained environments.

Technical Architecture

The architecture of Reflex is designed to be modular and efficient. The deployment utilizes Docker to encapsulate the application, ensuring consistency across environments. The use of a multi-stage build process allows for a lean final image, which is crucial for applications running in resource-limited settings.

Setup and Installation Process

To get started with deploying Reflex, follow these steps:

1. Build the Docker Image

docker build -t reflex-production-one-port .

2. Run the Docker Container

docker run -p 8080:8080 reflex-production-one-port

Note: This container does not persist data. Use bind mounts or named volumes for data persistence.

Usage Examples and API Overview

Reflex is designed to work seamlessly with existing load balancers or reverse proxies. It is particularly useful for deploying on platforms like Render or Heroku. Here’s a quick example of how to initialize and run Reflex locally:

uv run reflex init
uv run reflex run

This command initializes the application and starts the server, allowing you to see changes in real-time.

Community and Contribution

Reflex thrives on community contributions. To contribute, follow the Contributing Guide. Key steps include:

  • Fork the repository.
  • Clone your fork and navigate into the repo.
  • Run uv sync to install your local build.
  • Make changes and run tests before submitting a pull request.

License and Legal Considerations

Reflex is licensed under the Apache License 2.0. This allows for wide usage and modification, provided that the terms of the license are followed.

Conclusion

Deploying Reflex in production mode is straightforward with Docker. By following the steps outlined in this guide, you can leverage its powerful features while ensuring optimal performance and resource management.

Additional Resources

For more information, visit the Reflex GitHub Repository.

FAQ

What is Reflex?

Reflex is a framework for building interactive web applications, designed to simplify the development process.

How do I contribute to Reflex?

You can contribute by forking the repository, making changes, and submitting a pull request after ensuring all tests pass.

What is the licensing for Reflex?

Reflex is licensed under the Apache License 2.0, allowing for modification and redistribution under certain conditions.