fix(logging): pin grafana + loki to az-a (talos-cp-1) — sole Longhorn node, PVC fails to attach on cp-2/cp-3

2026-07-20 23:04:19 -07:00
parent 3a95f57b8f
commit 42cd0204fa
2 changed files with 17 additions and 0 deletions
@@ -157,6 +157,18 @@ tolerations:
    operator: Exists
    effect: NoSchedule

+# Pin to az-a (talos-cp-1) — the only node running Longhorn. Without this the
+# scheduler may place grafana on cp-2/cp-3, where its Longhorn PVC cannot attach
+# ("CSINode does not contain driver driver.longhorn.io").
+affinity:
+  nodeAffinity:
+    requiredDuringSchedulingIgnoredDuringExecution:
+      nodeSelectorTerms:
+        - matchExpressions:
+            - key: topology.kubernetes.io/zone
+              operator: In
+              values: [az-a]
+
 # ClusterIP only — access via ingress (grafana.riotpiao.com) or port-forward.
 service:
  type: ClusterIP