[bitnami/nats] Add PersistentVolumeRetentionPolicy (#29371)

bitnami/nats/CHANGELOG.md

@@ -1,8 +1,12 @@
 # Changelog
 
-## 8.3.5 (2024-09-06)
+## 8.4.0 (2024-09-12)
 
-* [bitnami/nats] Release 8.3.5 ([#29253](https://github.com/bitnami/charts/pull/29253))
+* [bitnami/nats] Add `PersistentVolumeRetentionPolicy` ([#29371](https://github.com/bitnami/charts/pull/29371))
+
+## <small>8.3.5 (2024-09-06)</small>
+
+* [bitnami/nats] Release 8.3.5 (#29253) ([a1687c9](https://github.com/bitnami/charts/commit/a1687c981454b4ec06fbc05993a6c498e5b29bcd)), closes [#29253](https://github.com/bitnami/charts/issues/29253)
 
 ## <small>8.3.4 (2024-08-30)</small>
 

bitnami/nats/Chart.yaml

@@ -31,4 +31,4 @@ maintainers:
 name: nats
 sources:
 - https://github.com/bitnami/charts/tree/main/bitnami/nats
-version: 8.3.5
+version: 8.4.0

bitnami/nats/README.md

@@ -337,14 +337,17 @@ As an alternative, you can use of the preset configurations for pod affinity, po
 
 ### Persistence parameters
 
-| Name                       | Description                                                         | Value               |
-| -------------------------- | ------------------------------------------------------------------- | ------------------- |
-| `persistence.enabled`      | Enable NATS data persistence using PVC(s)                           | `false`             |
-| `persistence.storageClass` | PVC Storage Class for NATS data volume                              | `""`                |
-| `persistence.accessModes`  | PVC Access modes                                                    | `["ReadWriteOnce"]` |
-| `persistence.size`         | PVC Storage Request for NATS data volume                            | `8Gi`               |
-| `persistence.annotations`  | Annotations for the PVC                                             | `{}`                |
-| `persistence.selector`     | Selector to match an existing Persistent Volume for NATS's data PVC | `{}`                |
+| Name                                               | Description                                                                    | Value               |
+| -------------------------------------------------- | ------------------------------------------------------------------------------ | ------------------- |
+| `persistence.enabled`                              | Enable NATS data persistence using PVC(s)                                      | `false`             |
+| `persistence.storageClass`                         | PVC Storage Class for NATS data volume                                         | `""`                |
+| `persistence.accessModes`                          | PVC Access modes                                                               | `["ReadWriteOnce"]` |
+| `persistence.size`                                 | PVC Storage Request for NATS data volume                                       | `8Gi`               |
+| `persistence.annotations`                          | Annotations for the PVC                                                        | `{}`                |
+| `persistence.selector`                             | Selector to match an existing Persistent Volume for NATS's data PVC            | `{}`                |
+| `persistentVolumeClaimRetentionPolicy.enabled`     | Enable Persistent volume retention policy for NATS statefulset                 | `false`             |
+| `persistentVolumeClaimRetentionPolicy.whenScaled`  | Volume retention behavior when the replica count of the StatefulSet is reduced | `Retain`            |
+| `persistentVolumeClaimRetentionPolicy.whenDeleted` | Volume retention behavior that applies when the StatefulSet is deleted         | `Retain`            |
 
 ### Other parameters
 
@@ -461,4 +464,4 @@ Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
-limitations under the License.
+limitations under the License.

bitnami/nats/templates/statefulset.yaml

@@ -224,6 +224,11 @@ spec:
         {{- include "common.tplvalues.render" (dict "value" .Values.extraVolumes "context" $) | nindent 8 }}
         {{- end }}
   {{- if .Values.persistence.enabled }}
+  {{- if .Values.persistentVolumeClaimRetentionPolicy.enabled }}
+  persistentVolumeClaimRetentionPolicy:
+    whenDeleted: {{ .Values.persistentVolumeClaimRetentionPolicy.whenDeleted }}
+    whenScaled: {{ .Values.persistentVolumeClaimRetentionPolicy.whenScaled }}
+  {{- end }}
   volumeClaimTemplates:
     - metadata:
         name: data

bitnami/nats/values.yaml

@@ -940,6 +940,19 @@ persistence:
   ##     app: my-app
   ##
   selector: {}
+## Persistent Volume Claim Retention Policy
+## ref: https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#persistentvolumeclaim-retention
+##
+persistentVolumeClaimRetentionPolicy:
+  ## @param persistentVolumeClaimRetentionPolicy.enabled Enable Persistent volume retention policy for NATS statefulset
+  ##
+  enabled: false
+  ## @param persistentVolumeClaimRetentionPolicy.whenScaled Volume retention behavior when the replica count of the StatefulSet is reduced
+  ##
+  whenScaled: Retain
+  ## @param persistentVolumeClaimRetentionPolicy.whenDeleted Volume retention behavior that applies when the StatefulSet is deleted
+  ##
+  whenDeleted: Retain
 ## @section Other parameters
 
 ## NATS Pod Disruption Budget configuration