cluster ip for nfs-photo

clusters/base/apps/nfs-photo/helmrelease.yaml

@@ -130,9 +130,13 @@ spec:
     service:
       app:
         controller: app
-        # cluster-internal only, consumed by webdav via
+        # cluster-internal only. pinned (not DNS name): webdav's PV mounts
-        # nfs-photo.nfs.svc.cluster.local
+        # this over NFS via the kubelet's in-tree kernel NFS client, which
+        # runs in the node's host network namespace and can't reliably
+        # resolve/route Kubernetes Service DNS names - it needs a stable IP
+        # it can reach directly.
         type: ClusterIP
+        clusterIP: 10.43.166.34
         ports:
           nfs:
             port: 2049

clusters/base/apps/webdav/pv-pvc-data.yaml

@@ -48,7 +48,11 @@ spec:
   mountOptions:
     - nfsvers=4.1
   nfs:
-    server: nfs-photo.nfs.svc.cluster.local
+    # pinned ClusterIP, not the service DNS name - kubelet's in-tree kernel
+    # NFS client runs in the node's host network namespace and can't
+    # reliably resolve/route Kubernetes Service DNS names. See nfs-photo's
+    # helmrelease.yaml (service.app.clusterIP) for the matching pin.
+    server: 10.43.166.34
     path: /export
   claimRef:
     namespace: webdav