tommy
a4726a4da6
Lightweight weekly drift-catcher that posts a concise digest to the dedicated ntfy/health-digest topic every Monday at 07:00. Covers: PVE reachability, Prometheus target health, firing alerts, PBS backup status, PBS ZFS pool presence, filesystem >85%, ZFS pool state, Docker unhealthy containers, and TLS cert expiry <21d. Does NOT replace the quarterly full health check — documented in PHASE5-incidents.md alongside open P5-07 and P5-10 items. Deployed: /etc/cron.d/weekly-health-digest on media-server. Break-tested 2026-05-16: correctly flagged PBS ZFS pools MISSING and Grafana firing alerts; suppressed known-persistent issues. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
58 lines
2.6 KiB
Markdown
58 lines
2.6 KiB
Markdown
# Phase 5 — Incident & Deliverable Log
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## P5-12 — Weekly Health Digest (2026-05-16)
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**Deliverable:** `monitoring/weekly-health-digest.sh`
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**Deployed to:** media-server (192.168.99.183) at `~/ansible/scripts/weekly-health-digest.sh`
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**Schedule:** `/etc/cron.d/weekly-health-digest` — Monday 07:00 CDT
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### What the digest covers
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Lightweight drift-catcher. Runs read-only checks each Monday and posts a single concise message to the **ntfy `health-digest` topic** (dedicated topic — not grafana-alerts, not prometheus-alerts).
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| Check | Method |
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|-------|--------|
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| PVE cluster reachable | Ping beast node-exporter |
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| Prometheus targets all up | `up{job="node-exporter"}` query — known-persistent down (.227/.100) suppressed |
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| Grafana/Prometheus firing alerts | `/api/v1/alerts` — PrometheusTargetDown/NodeDown suppressed (covered above) |
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| PBS backup freshness | `backup_status` textfile metric |
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| PBS ZFS pools imported | `zfs_pool_present` textfile metric (usb1-zfs, usb2-zfs) |
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| Filesystem >85% (all nodes) | Prometheus node_filesystem query |
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| ZFS pools ONLINE (cluster-wide) | `node_zfs_zpool_state` for degraded/faulted/suspended/unavail |
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| Docker containers unhealthy/restarting | `docker ps` on media-server (known-unhealthy `immich_machine_learning` suppressed) |
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| TLS cert expiry <21 days | Live openssl check on 6 representative domains |
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### What the digest does NOT do
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- Does NOT replace the quarterly full health check sweep.
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- Does NOT check HAOS internals, Frigate camera counts, Coral inference times, or Authelia error rates.
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- Does NOT check docker-node01/02 containers directly (no Docker API exposed).
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- Does NOT verify Keepalived MASTER/BACKUP state.
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- Does NOT check PBS datastore GC/verify schedules in detail.
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These areas require a human-run full sweep (see `~/ansible/reports/health-check-*.md`).
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### ntfy subscription
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Subscribe ntfy client to topic `health-digest` on `192.168.99.198:8095`.
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Same procedure as the `zfs-health` topic added in Phase 4D.
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### Break-test result (2026-05-16 08:54 CDT)
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Script ran successfully. Delivery confirmed on `health-digest` topic. Correctly flagged:
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- **PBS ZFS pools MISSING** (usb1-zfs + usb2-zfs — INC-001 + new usb2-zfs failure) ✓
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- **Grafana FIRING** (ContainerMemoryNearLimit, SwapHighWarning) ✓
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- All healthy checks reported OK ✓
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- Known-down nodes (.227 P5-10, .100 HAOS) correctly suppressed ✓
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---
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## Open Phase 5 Items
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| ID | Description | Status |
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|----|-------------|--------|
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| P5-07 | ansible-control disk at 79.2% (was 81.5%) | Ongoing — still approaching 85% |
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| P5-10 | Pi4 node-exporter wrong-arch binary (.227) | Open |
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| P5-12 | Weekly health digest | **DONE** (this entry) |
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