Spencer Grimes
71c7bb756a
- Renamed sentry.py to kao.py - Updated all references from Sentry-Emote to Kao - Kao (顔) means "face" in Japanese Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
156 lines
3.9 KiB
Markdown
156 lines
3.9 KiB
Markdown
# Kao
|
|
|
|
A minimalist system status monitor that uses ASCII emotes to display server health on an old phone.
|
|
|
|
-brightgreen)
|
|
|
|
## Why?
|
|
|
|
Turn an old phone (with its OLED screen) into a glanceable ambient display for your home server. Instead of graphs and numbers, see a happy face `( ^_^)` when things are good, and a worried face `( o_o)` when they're not.
|
|
|
|
## Features
|
|
|
|
- **OLED-optimized** — Pure black background, saves battery
|
|
- **Glanceable** — Know your server's status from across the room
|
|
- **Extensible** — Add custom detectors for any metric
|
|
- **Personality** — Rotating expressions, celebration animations, sleep mode
|
|
- **Home Assistant ready** — Webhook endpoints for automation
|
|
|
|
## Quick Start
|
|
|
|
```bash
|
|
# Clone and setup
|
|
git clone https://github.com/yourusername/kao.git
|
|
cd kao
|
|
python -m venv venv
|
|
source venv/bin/activate # Windows: .\venv\Scripts\activate
|
|
pip install -r requirements.txt
|
|
|
|
# Run everything
|
|
python kao.py
|
|
```
|
|
|
|
Open http://localhost:5000 on your phone (use Fully Kiosk Browser for best results).
|
|
|
|
## Status Faces
|
|
|
|
| State | Emote | Meaning |
|
|
|-------|-------|---------|
|
|
| Optimal | `( ^_^)` | All systems healthy |
|
|
| Warning | `( o_o)` | Something needs attention |
|
|
| Critical | `( x_x)` | Immediate action required |
|
|
| Notify | `( 'o')` | Transient notification |
|
|
| Sleeping | `( -_-)zzZ` | Sleep mode active |
|
|
| Disconnected | `( ?.?)` | Can't reach server |
|
|
|
|
## Built-in Detectors
|
|
|
|
| Detector | Monitors |
|
|
|----------|----------|
|
|
| **disk_space** | Disk usage on all drives |
|
|
| **cpu** | CPU utilization |
|
|
| **memory** | RAM usage |
|
|
| **service** | Whether processes are running |
|
|
| **network** | Host reachability (ping) |
|
|
|
|
## Configuration
|
|
|
|
Edit `config.json` to enable/disable detectors and set thresholds:
|
|
|
|
```json
|
|
{
|
|
"aggregator_url": "http://localhost:5000",
|
|
"detectors": [
|
|
{
|
|
"name": "disk_space",
|
|
"enabled": true,
|
|
"script": "detectors/disk_space.py",
|
|
"env": {
|
|
"CHECK_INTERVAL": "300",
|
|
"THRESHOLD_WARNING": "85",
|
|
"THRESHOLD_CRITICAL": "95"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
```
|
|
|
|
## Custom Detectors
|
|
|
|
Create your own detector by POSTing events to the aggregator:
|
|
|
|
```bash
|
|
curl -X POST http://localhost:5000/event \
|
|
-H "Content-Type: application/json" \
|
|
-d '{"id": "my_check", "priority": 2, "message": "Something is wrong", "ttl": 120}'
|
|
```
|
|
|
|
- `id` — Unique identifier for this event
|
|
- `priority` — 1 (critical), 2 (warning), 3 (notify), 4 (optimal)
|
|
- `message` — What to display
|
|
- `ttl` — Auto-expire after N seconds (for heartbeat pattern)
|
|
|
|
Clear an event:
|
|
```bash
|
|
curl -X POST http://localhost:5000/clear \
|
|
-d '{"id": "my_check"}'
|
|
```
|
|
|
|
## Home Assistant Integration
|
|
|
|
Add webhook commands to your Home Assistant config:
|
|
|
|
```yaml
|
|
rest_command:
|
|
sentry_sleep:
|
|
url: "http://YOUR_SERVER:5000/sleep"
|
|
method: POST
|
|
sentry_wake:
|
|
url: "http://YOUR_SERVER:5000/wake"
|
|
method: POST
|
|
```
|
|
|
|
Trigger from automations:
|
|
|
|
```yaml
|
|
automation:
|
|
- alias: "Sentry Sleep at Bedtime"
|
|
trigger:
|
|
platform: time
|
|
at: "23:00:00"
|
|
action:
|
|
service: rest_command.sentry_sleep
|
|
|
|
- alias: "Sentry Wake in Morning"
|
|
trigger:
|
|
platform: time
|
|
at: "07:00:00"
|
|
action:
|
|
service: rest_command.sentry_wake
|
|
```
|
|
|
|
## API Reference
|
|
|
|
| Endpoint | Method | Description |
|
|
|----------|--------|-------------|
|
|
| `/` | GET | Web UI |
|
|
| `/status` | GET | Current state as JSON |
|
|
| `/events` | GET | List all active events |
|
|
| `/event` | POST | Register an event |
|
|
| `/clear` | POST | Clear an event by ID |
|
|
| `/sleep` | POST | Enter sleep mode |
|
|
| `/wake` | POST | Exit sleep mode |
|
|
|
|
## Personality
|
|
|
|
The emote has personality! In optimal state it:
|
|
|
|
- Rotates through happy faces every 5 minutes
|
|
- Occasionally winks `( -_^)` or blinks `( ᵕ.ᵕ)`
|
|
- Celebrates `\(^o^)/` when recovering from warnings
|
|
- Each face has its own animation (floating, bouncing, swaying)
|
|
|
|
## License
|
|
|
|
MIT
|