---
title: Alert Routing
description: How security alerts flow through Netgrimoire
published: true
date: 2026-04-12T00:00:00.000Z
tags: ward, alerts, ntfy
editor: markdown
dateCreated: 2026-04-12T00:00:00.000Z
---

# Alert Routing

All Netgrimoire alerts route through self-hosted ntfy at `ntfy.netgrimoire.com`.

## ntfy Topics

| Topic | Source | Purpose |
|-------|--------|---------|
| `netgrimoire-diun` | DIUN | Docker image update notifications |
| `netgrimoire-media` | Sonarr, Radarr, SABnzbd | Download and media events |
| `netgrimoire-backup` | Kopia | Backup completion and errors |
| `gremlin-alerts` | n8n Kuma triage workflow | AI-analyzed service DOWN alerts |
| `gremlin-audits` | n8n Forgejo audit workflow | Weekly YAML audit summaries |

## Alert Sources

**OPNsense → ntfy:** CrowdSec HTTP plugin (`/usr/local/etc/crowdsec/notifications/ntfy.yaml`) + Monit script (`/usr/local/bin/ntfy-alert.sh`). See [OPNsense Alerts](/Netgrimoire/Ward-Grimoire/Notifications/OPNsense-Alerts).

**Uptime Kuma → Gremlin → ntfy:** Kuma webhook fires on DOWN/RECOVERED → n8n triage workflow → Ollama analysis (DOWN path only) → ntfy `gremlin-alerts`. See [Gremlin Kuma Triage](/Netgrimoire/Gremlin-Grimoire/Workflows/Kuma-Triage).

**DIUN → ntfy:** Docker image update watcher. Schedule: every 6 hours. Priority must be integer (1–5), not string `"default"`.
