homelab-codex-ws/services/brain-watchdog/env.example

CONTROL_PLANE_URL=
STALE_THRESHOLD=600
INTERVAL=60
FAILS_BEFORE_ALERT=3
TG_TOKEN=
TG_CHAT_ID=
HEALTHCHECKS_URL=
# Optional: Prometheus HTTP URL for polling /api/v1/alerts and alerting on firing rules.
# Target: Tailscale IP of Prometheus node, e.g. http://100.95.58.48:9090
# Leave empty to disable Prometheus polling (watchdog works without it).
PROMETHEUS_URL=
feat(piha): brain-watchdog — external watchdog for control-plane Polls /summary on VPS over Tailscale every 60s; computes freshness locally from last_update epoch (never trusts self-reported status). Alerts via Telegram Bot API directly after 3 consecutive failures; sends recovery message on heal. State (fail_count, alerted) persisted to volume so debounce survives restarts. - services/brain-watchdog/: Python service, no external deps (stdlib only) - hosts/piha/runtime/brain-watchdog/: override with mem_limit 64m - hosts/piha/services.yaml + inventory/topology.yaml: manifest entries Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> 2026-06-01 17:54:36 +02:00			`CONTROL_PLANE_URL=`
			`STALE_THRESHOLD=600`
			`INTERVAL=60`
			`FAILS_BEFORE_ALERT=3`
			`TG_TOKEN=`
			`TG_CHAT_ID=`
			`HEALTHCHECKS_URL=`
feat(brain-watchdog): poll Prometheus /api/v1/alerts as second alert source (Telegram) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> 2026-06-30 18:51:34 +02:00			`# Optional: Prometheus HTTP URL for polling /api/v1/alerts and alerting on firing rules.`
			`# Target: Tailscale IP of Prometheus node, e.g. http://100.95.58.48:9090`
			`# Leave empty to disable Prometheus polling (watchdog works without it).`
			`PROMETHEUS_URL=`