Streamlit Python Data App Framework

This is a repackaged open source software product wherein additional charges apply for cloudimg support services.

## Why This Image Over a Manual Install

Setting up Streamlit for production typically requires configuring a Python virtual environment, writing systemd unit files, hardening nginx as a reverse proxy with WebSocket upgrade headers, generating per-instance credentials, and partitioning storage - hours of work that is easy to get wrong. This AMI eliminates that entire process. You launch an instance and a secured, authenticated Streamlit app is serving on port 80 within minutes, ready for your team to replace the demo with their own Python code.

## Application Stack

• Streamlit installed into a dedicated Python virtual environment under /opt/streamlit, run by an unprivileged service account
• Dedicated data disk holds the application directory (virtual environment and app script) so storage is independently resizable without rebuilding the instance
• systemd service starts the app on boot and restarts it automatically on failure
• nginx reverse proxy publishes the app on port 80 behind HTTP Basic authentication with full WebSocket upgrade support so the interactive UI renders instantly

## Ready-to-Run Demo App

A polished multi-widget demo ships at /opt/streamlit/app.py featuring a title, sidebar controls, an interactive dataframe, and a chart driven by pandas and numpy. It demonstrates what a Streamlit app looks like out of the box and gives you a working example to learn from. Replace it with your own Python script and restart the service to go live.

## Secure First Boot

On first boot a one-shot service generates a fresh admin password unique to that instance, writes it into the nginx credentials file, and stores the password in a root-only file. The Streamlit process binds to loopback only and is never exposed without authentication. No shared or default credentials ship in the image - eliminating shared-secret risk entirely.

## Full WebSocket Support

Streamlit drives its interactive interface over a WebSocket. The bundled nginx proxy forwards the WebSocket upgrade and connection headers so the app loads and updates instantly behind authentication instead of hanging on a loading screen. A health endpoint is reachable for monitoring and load-balancer integration.

## Use Cases

• Data science teams deploying model-evaluation dashboards for stakeholder review - upload a trained model, visualize predictions, and share a URL with decision-makers without provisioning front-end infrastructure
• Interactive analytics dashboards for business intelligence
• Machine learning model demos and internal tools
• Rapid prototyping of Python-powered web apps
• A self-hosted home for the Streamlit apps your team builds, ideal for small teams without dedicated DevOps resources

## cloudimg Support

24/7 technical support by email and live chat. Our engineers help with deployment, deploying your own app, Python dependency management, TLS configuration, authentication customization, and performance tuning. Critical issues receive a one-hour average response time.

## Getting Started

1. Launch the AMI from AWS Marketplace on your preferred instance type

2. Retrieve the generated admin password from the root-only file

3. Access the demo app at your instance's public IP on port 80

4. Replace /opt/streamlit/app.py with your own script, install dependencies into the virtual environment, and restart the service

For a detailed deployment walkthrough including TLS setup and custom authentication, contact cloudimg support.

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