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>
tommy