add nodeSelector

fleet.yaml

@@ -7,10 +7,12 @@ targetCustomizations:
         name: jupyterjsc-staging
     helm:
       values:
+        nodeSelector:
+          worker: "true"
+        database:
+          host: postgresql.database.svc
         persistence:
           path: /nfs/database-backups/jupyterjsc-staging
         pgpassword:
           name: postgresql-auth
           key: password
-        database:
-          host: postgresql.database.svc