The previous probe had timeoutSeconds=1 which is too tight for the
shell pipeline (sh + wget + grep + comparison). On a busy node the
wget call regularly exceeded 1s, the exec timed out, and 3 consecutive
timeouts triggered SIGTERM. Result: vmagent restarted ~5x per 30 min,
causing brief gaps that made the Grafana "Pods up" panel render 0
whenever a refresh happened to coincide with a restart.
The relaxed probe still catches the original failure mode (zero healthy
targets) but only kills the pod after 10 full minutes of consecutive
failure (5 attempts × 2 min period), not 3 minutes (3 × 1 min).
timeoutSeconds: 1 → 5
periodSeconds: 60 → 120
failureThreshold: 3 → 5
initialDelaySeconds: 120 → 180
Also added wget -T 4 inside the command so wget itself bounds its
network call to 4s — leaving 1s of slack within the 5s exec budget.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Trey t
2004f9c5b2