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docs: update README — add notifications section for n8n/Telegram

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Sebastian Krüger
2026-06-08 22:30:40 +02:00
parent 39636e85c3
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@@ -68,6 +68,16 @@ ssh vps 'systemctl status stacks-backup.timer'
ssh vps 'source ~/stacks/_backup/.env && restic -r /mnt/hidrive/users/valknar/Backup/stacks snapshots'
```
## Notifications
Watchtower and the backup script both POST to an n8n webhook, which forwards messages to Telegram.
The webhook URL is set in two places:
- `_backup/.env` → `WEBHOOK_URL`
- `watchtower/.env` → `NOTIFICATION_URL` (uses `generic+https://` shoutrrr scheme)
Both point to the same n8n workflow at `https://n8n.pivoine.art`. The workflow accepts `{ "text": "..." }` (backup) and `{ "message": "..." }` (watchtower) and sends either field to Telegram.
## Data
Persistent data is stored in `~/stacks/.data/<stack>/` on the VPS using bind mounts. Database stacks use dedicated Postgres instances with simple credentials.