Adds node affinity to Nc deploy.

nextcloud/manifests/app.yml

@@ -107,6 +107,15 @@ spec:
         app.kubernetes.io/part-of: Nextcloud
     spec:
       affinity:
+        nodeAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 20
+            preference:
+              matchExpressions:
+              - key: stateless
+                operator: In
+                values:
+                - "true"
         podAntiAffinity:
           preferredDuringSchedulingIgnoredDuringExecution:
           - weight: 100