domino-apps

Domino Apps Skill

This skill provides comprehensive knowledge for deploying web applications to Domino Data Lab, with special focus on React applications using Vite.

Key Concepts

Domino App Architecture

Domino apps run in containers behind a reverse proxy that:

1. Authenticates users via Domino's auth system
2. Strips the URL prefix before forwarding to your app
3. Routes traffic to your app container
4. Handles infrastructure provisioning, routing, and resource management

Note: Port selection is flexible; port 8888 is no longer required. You can use any port your application prefers.

Critical Configuration Points

1. Host Binding: Bind to 0.0.0.0 (not localhost) so Domino can reach your app
2. Relative Base Path: Use base: './' in Vite config for React apps
3. app.sh: Entry point script (launch file) that Domino executes

Related Documentation

• REACT-VITE-GUIDE.md - Deep dive into Vite + React configuration
• REACT-CICD.md - CI/CD setup with GitHub Actions
• FRAMEWORKS.md - Streamlit, Dash, Flask configurations
• TROUBLESHOOTING.md - Common issues and solutions

Quick Start

React with Vite

// vite.config.js
import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'

export default defineConfig({
  plugins: [react()],
  base: './',  // CRITICAL for Domino proxy
  server: { host: '0.0.0.0', port: 8888, strictPort: true },
  preview: { host: '0.0.0.0', port: 8888, strictPort: true },
})

# app.sh
#!/bin/bash
set -e
cd /mnt/code
npm ci
npm run build
npx serve -s dist -l 8888 --no-clipboard

Streamlit

# app.sh
#!/bin/bash
streamlit run app.py --server.port 8888 --server.address 0.0.0.0

Dash/Flask

# app.sh
#!/bin/bash
python app.py  # Must bind to 0.0.0.0:8888

Environment Variables

Domino provides these environment variables to your app:

Variable	Description
DOMINO_PROJECT_NAME	Current project name
DOMINO_PROJECT_OWNER	Project owner username
DOMINO_RUN_ID	Current run identifier
DOMINO_STARTING_USERNAME	User who started the app