From 05605cb956a66e81be979834ac8d2a103570d7ff Mon Sep 17 00:00:00 2001
From: Dieter Maes <dmaes@inuits.eu>
Date: Tue, 4 Aug 2026 14:30:44 +0200
Subject: [PATCH] feat(cloudnative-pg): allow setting scratch-data emptyDir
 options

closes #979

Signed-off-by: Dieter Maes <dmaes@inuits.eu>
---
 charts/cloudnative-pg/README.md                 |  1 +
 charts/cloudnative-pg/templates/deployment.yaml |  5 +++--
 charts/cloudnative-pg/values.schema.json        | 11 +++++++++++
 charts/cloudnative-pg/values.yaml               |  4 ++++
 4 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/charts/cloudnative-pg/README.md b/charts/cloudnative-pg/README.md
index 232ff0b653..7793ed1274 100644
--- a/charts/cloudnative-pg/README.md
+++ b/charts/cloudnative-pg/README.md
@@ -158,6 +158,7 @@ Kubernetes: `>=1.29.0-0`
 | rbac.create | bool | `true` | Specifies whether ClusterRole and ClusterRoleBinding should be created. |
 | replicaCount | int | `1` |  |
 | resources | object | `{}` |  |
+| scratchData.emptyDir | object | `{}` | EmptyDir options for the scratch-data volume. |
 | service.ipFamilies | list | `[]` | Sets the families that should be supported and the order in which they should be applied to ClusterIP as well. Can be IPv4 and/or IPv6. |
 | service.ipFamilyPolicy | string | `""` | Set the ip family policy to configure dual-stack see [Configure dual-stack](https://kubernetes.io/docs/concepts/services-networking/dual-stack/#services) |
 | service.name | string | `"cnpg-webhook-service"` | The name of the Webhook Service. |
diff --git a/charts/cloudnative-pg/templates/deployment.yaml b/charts/cloudnative-pg/templates/deployment.yaml
index c17e6a7493..9f4a8ce2a5 100644
--- a/charts/cloudnative-pg/templates/deployment.yaml
+++ b/charts/cloudnative-pg/templates/deployment.yaml
@@ -166,8 +166,9 @@ spec:
         {{- toYaml . | nindent 8 }}
       {{- end }}
       volumes:
-      - emptyDir: {}
-        name: scratch-data
+      - name: scratch-data
+        emptyDir:
+          {{- toYaml .Values.scratchData.emptyDir | nindent 10 }}
       - name: webhook-certificates
         secret:
           defaultMode: 420
diff --git a/charts/cloudnative-pg/values.schema.json b/charts/cloudnative-pg/values.schema.json
index efdd012e85..61d6390512 100644
--- a/charts/cloudnative-pg/values.schema.json
+++ b/charts/cloudnative-pg/values.schema.json
@@ -325,6 +325,17 @@
       "required": [],
       "type": "object"
     },
+    "scratchData": {
+      "properties": {
+        "emptyDir": {
+          "description": "EmptyDir options for the scratch-data volume.",
+          "required": [],
+          "type": "object"
+        }
+      },
+      "required": [],
+      "type": "object"
+    },
     "service": {
       "properties": {
         "ipFamilies": {
diff --git a/charts/cloudnative-pg/values.yaml b/charts/cloudnative-pg/values.yaml
index 2fcfd0e999..b9da922fa0 100644
--- a/charts/cloudnative-pg/values.yaml
+++ b/charts/cloudnative-pg/values.yaml
@@ -167,6 +167,10 @@ resources: {}
   #   cpu: 100m
   #   memory: 100Mi
 
+scratchData:
+  # -- EmptyDir options for the scratch-data volume.
+  emptyDir: {}
+
 # -- Nodeselector for the operator to be installed.
 nodeSelector: {}