update gateway spec

cluster/applications/monitoring/httproute.yaml

@@ -1,6 +1,5 @@
 # ------------------------------------------------------------------------------
 # HTTPRoute — Grafana via Cilium Gateway
-# Cert issued per-service via cert-manager annotation on the Certificate
 # ------------------------------------------------------------------------------
 apiVersion: cert-manager.io/v1
 kind: Certificate
@@ -25,12 +24,21 @@ metadata:
     external-dns.alpha.kubernetes.io/target: "10.1.71.90"
 spec:
   parentRefs:
-    - name: fastpass-gateway
+    - group: gateway.networking.k8s.io
+      kind: Gateway
+      name: fastpass-gateway
       namespace: gateway
       sectionName: https
   hostnames:
     - grafana.local.mk-labs.cloud
   rules:
-    - backendRefs:
-        - name: monitoring-grafana
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        - group: ""
+          kind: Service
+          name: monitoring-grafana
           port: 80
+          weight: 1