From b5119054be219f40ca34984e28de55d1340c4d5e Mon Sep 17 00:00:00 2001
From: seonNoh <dark.pearl.nst@gmail.com>
Date: Thu, 24 Sep 2026 02:30:00 +0900
Subject: [PATCH] fix(observability): LegacyUnhealthy must not fire while
 up{job=legacy-api} is absent (WP-15 supplies it)

---
 vm/observability/grafana/provisioning/alerting/rules.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vm/observability/grafana/provisioning/alerting/rules.yaml b/vm/observability/grafana/provisioning/alerting/rules.yaml
index 3fed79b..865e0ac 100644
--- a/vm/observability/grafana/provisioning/alerting/rules.yaml
+++ b/vm/observability/grafana/provisioning/alerting/rules.yaml
@@ -157,7 +157,8 @@ groups:
       model:
         refId: A
         instant: true
-        expr: (count(up{job="legacy-api"} == 1) or vector(0)) < bool 2
+        expr: count(up{job="legacy-api"} == 1) < bool 2
+        # no series until WP-15 ships Alloy on the legacy VMs: absent -> NoData -> OK (the `or vector(0)` form fired continuously)
     - refId: C
       datasourceUid: __expr__
       model: