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