Files
restic-manager/docs/book/src/operations/alerts.md
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steve bb4ed3502d P5: OSS readiness — docs site, contributor onboarding, e2e harness
P5-01 — Documentation site under docs/book/ rendered with mdBook
(downloaded via Makefile, same static-binary pattern as Tailwind).
Structured chapters: getting started, concepts, operations,
security, reference. `make docs` / `make docs-watch`. Generated
output gitignored.

P5-02 — CONTRIBUTING.md rewritten from placeholder to a full
guide. CODE_OF_CONDUCT.md adapted from Contributor Covenant for a
single-maintainer project. .gitea/issue_template/{bug,feature}.md
and PULL_REQUEST_TEMPLATE.md.

P5-04 — Six README screenshots captured live from a fresh server
bootstrap (login, empty dashboard, add-host, alerts, settings,
audit log). README rewritten to centre the screenshot grid and
link out to the docs site.

P5-05 — SECURITY.md with disclosure policy (3-day ack, 30-day
default window), scope in/out, threat-model summary, operator
hardening checklist. Mirrored as a docs-site chapter.

P5-06 — End-to-end test harness. e2e/compose.e2e.yml brings up
server + sibling Linux agent (alpine + restic) + restic/rest-server.
Agent uses announce-and-approve so Playwright can drive the full
operator flow: bootstrap → login → accept pending → backup →
verify terminal status. Second spec scrapes /metrics to assert
the P6-04 endpoint surface. .gitea/workflows/e2e.yml runs on every
PR; local how-to in docs/e2e.md.
2026-05-08 20:08:23 +01:00

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# Alerts and notifications
restic-manager raises alerts on conditions that need human
attention. The alert engine evaluates rules on a 60s tick and
on every job-finished / host-online event.
## Built-in alert kinds
| Kind | Trigger | Severity |
|---------------------|---------|----------|
| `backup_failed` | A backup job ends in `failed` or `cancelled` | warning |
| `forget_failed` | A forget job ends in `failed` | warning |
| `prune_failed` | A prune job ends in `failed` | critical |
| `check_failed` | A check job ends in `failed` | critical |
| `agent_offline` | A host has been offline more than 90s past its heartbeat cadence | warning |
| `stale_schedule` | A schedule's "last run" is more than 1.5 × its interval ago | warning |
| `update_failed` | An agent self-update returned a fail or didn't reconnect within 90s | warning |
| `fleet_update_halted`| The rolling fleet-update worker stopped on a failure | critical |
Each alert has a `dedup_key` so re-firing the same condition
just bumps `last_seen_at` — the operator gets one row per
condition, not a thousand.
## Lifecycle
```
raised ──acknowledge──▶ acknowledged ──resolve──▶ resolved
│ │
└────────auto-resolve──────┘
(e.g. agent_offline auto-resolves on agent_online)
```
- **Acknowledge** says "I've seen this, stop notifying about it".
- **Resolve** says "the underlying condition is gone".
- Some alerts auto-resolve when the condition clears
(`agent_offline` is the canonical example).
## Notification channels
Configure under **Settings → Notifications**. Each channel can
subscribe to all alerts or filter by severity.
### Webhook
Posts a JSON envelope to a URL of your choice. Useful for
piping into Slack via an Incoming Webhook URL or into your own
alerting tooling.
### ntfy
Pushes a plain-text alert to an [ntfy.sh](https://ntfy.sh/)
topic. Configure the topic URL; optional bearer token if you
self-host with auth.
### SMTP
Plain SMTP (with optional TLS). Configure host, port,
username, password, and the recipient list.
## Test fire
Each channel exposes a **Test fire** button that dispatches a
single synthetic alert through the channel without touching the
alert engine. Use this when you've added a channel and want to
verify connectivity before the next real failure happens.
## What gets logged
Every alert raise / acknowledge / resolve writes an audit log
entry. The audit log UI at **Settings → Audit log** filters by
user, action, target, and time range — useful for the
post-incident "who clicked acknowledge on the prune-failure
alert" question.