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lettabot/docs/cloud-deploy.md

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# Cloud Deployment
Deploy LettaBot to any cloud platform that supports Docker or Node.js.
## Prerequisites
- A [Letta API key](https://app.letta.com) (or a self-hosted Letta server -- see [Docker Server Setup](./selfhosted-setup.md))
- At least one channel token (Telegram, Discord, or Slack)
- A working `lettabot.yaml` config (run `lettabot onboard` to create one)
## Configuration
Cloud platforms typically don't support config files directly. LettaBot solves this with `LETTABOT_CONFIG_YAML` -- a single environment variable containing your entire config.
### Encoding Your Config
```bash
# Using the CLI helper (recommended)
lettabot config encode
# Or manually
base64 < lettabot.yaml | tr -d '\n'
```
Set the output as `LETTABOT_CONFIG_YAML` on your platform. This is the only env var you need -- everything (API key, channels, features) is in the YAML.
Both base64-encoded and raw YAML values are accepted. Base64 is recommended since some platforms don't handle multi-line env vars well.
### Verifying
To decode and inspect what a `LETTABOT_CONFIG_YAML` value contains:
```bash
LETTABOT_CONFIG_YAML=... lettabot config decode
```
## Docker
LettaBot includes a Dockerfile for containerized deployment.
### Build and Run
```bash
docker build -t lettabot .
docker run -d \
-e LETTABOT_CONFIG_YAML="$(base64 < lettabot.yaml | tr -d '\n')" \
-p 8080:8080 \
lettabot
```
### Docker Compose
```yaml
services:
lettabot:
build: .
ports:
- "8080:8080"
environment:
- LETTABOT_CONFIG_YAML=${LETTABOT_CONFIG_YAML}
restart: unless-stopped
```
If running alongside a self-hosted Letta server, see [Docker Server Setup](./selfhosted-setup.md) for the Letta container config.
## Fly.io
```bash
# Install CLI
brew install flyctl
fly auth login
# Launch (detects Dockerfile automatically)
fly launch
# Set your config
fly secrets set LETTABOT_CONFIG_YAML="$(base64 < lettabot.yaml | tr -d '\n')"
# Set a stable API key (optional, prevents regeneration across deploys)
fly secrets set LETTABOT_API_KEY=$(openssl rand -hex 32)
# Deploy
fly deploy
```
`fly launch` generates a `fly.toml` with your app name. Edit it to keep the bot running (Fly defaults to stopping idle machines):
```toml
[http_service]
auto_stop_machines = false
min_machines_running = 1
```
Scale to 1 machine (multiple instances would conflict on channel tokens):
```bash
fly scale count 1
```
## Railway
See [Railway Deployment](./railway-deploy.md) for the full guide including one-click deploy, persistent volumes, and Railway-specific configuration.
The short version:
1. Fork the repo and connect to Railway
2. Set `LETTABOT_CONFIG_YAML` (or individual env vars for simple setups)
3. Deploy
## Other Platforms
Any platform that runs Docker images or Node.js works. Set `LETTABOT_CONFIG_YAML` as an env var and you're done.
**Render:** Deploy from GitHub, set env var in dashboard.
**DigitalOcean App Platform:** Use the Dockerfile, set env var in app settings.
**Any VPS (EC2, Linode, Hetzner):** Build the Docker image and run it, or install Node.js and run `npm start` directly.
## Web Portal
LettaBot includes an admin portal at `/portal` for managing pairing approvals from a browser. Navigate to `https://your-host/portal` and enter your API key to:
- View pending pairing requests across all channels
- Approve users with one click
- Auto-refreshes every 10 seconds
## API Key
An API key is auto-generated on first boot and printed in logs. It's required for the web portal and HTTP API endpoints.
To make it stable across deploys, set `LETTABOT_API_KEY` as an environment variable:
```bash
# Fly.io
fly secrets set LETTABOT_API_KEY=$(openssl rand -hex 32)
# Railway / Render / etc.
# Set LETTABOT_API_KEY in the platform's env var UI
```
## Health Check
LettaBot exposes `GET /health` which returns `ok`. Configure your platform's health check to use this endpoint.
## Channel Limitations
| Channel | Cloud Support | Notes |
|---------|--------------|-------|
| Telegram | Yes | Full support |
| Discord | Yes | Full support |
| Slack | Yes | Full support |
| WhatsApp | No | Requires local QR code pairing |
| Signal | No | Requires local device registration |