try

apps/base/windmill/windmill.yaml

@@ -25,24 +25,7 @@ spec:
         name: bitnami
   values:
     fullnameOverride: windmill-postgresql-cool
-    postgresql:
+
-      auth:
-        postgresPassword: windmill
-        database: windmill
-      primary:
-        persistence:
-          # It would be $0.20/mo cheaper to use 8Gi NVMe, 
-          # but it's not available in Vultr's DFW datacenter
-          # so instead we use the minimum HDD size, 40Gi
-          storageClass: "vultr-block-storage-hdd" 
-          size: "40Gi"
-        resources:
-          limits:
-            cpu: "1"
-            memory: "2Gi"
-          requests:
-            cpu: "250m"
-            memory: "1024Mi"
 ---
 apiVersion: source.toolkit.fluxcd.io/v1beta2
 kind: HelmRepository