monitoring: allow metrics storage on the Pi fallback pool

services/monitoring/platform-quality-gateway-deployment.yaml

@@ -22,6 +22,17 @@ spec:
       labels:
         app: platform-quality-gateway
     spec:
+      # This small monitoring workload may use the Pi storage workers when
+      # the general Pi pool has no usable storage attachment capacity.
+      tolerations:
+        - key: atlas.bstein.dev/spillover
+          operator: Equal
+          value: "true"
+          effect: PreferNoSchedule
+        - key: longhorn
+          operator: Equal
+          value: "true"
+          effect: PreferNoSchedule
       securityContext:
         fsGroup: 65534
         fsGroupChangePolicy: OnRootMismatch