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=
