[alertmanager] Add support for PVC annotations in StatefulSet (#6066)

Signed-off-by: rb090 <[email protected]>
Co-authored-by: MH <[email protected]>

Author: rb090

charts/alertmanager/Chart.yaml

@@ -6,7 +6,7 @@ icon: https://raw.githubusercontent.com/prometheus/prometheus.github.io/master/a
 sources:
   - https://github.com/prometheus/alertmanager
 type: application
-version: 1.25.0
+version: 1.26.0
 # renovate: github-releases=prometheus/alertmanager
 appVersion: v0.28.1
 kubeVersion: ">=1.25.0-0"

charts/alertmanager/templates/statefulset.yaml

@@ -248,6 +248,14 @@ spec:
   volumeClaimTemplates:
     - metadata:
         name: storage
+        {{- with .Values.persistence.annotations }}
+        annotations:
+          {{ toYaml . | nindent 14 }}
+        {{- end }}
+        {{- with .Values.persistence.labels }}
+        labels:
+          {{ toYaml . | nindent 14 }}
+        {{- end }}
       spec:
         accessModes:
           {{- toYaml .Values.persistence.accessModes | nindent 10 }}

charts/alertmanager/values.schema.json

@@ -814,6 +814,22 @@
                 },
                 "size": {
                     "type": "string"
+                },
+                "annotations": {
+                  "type": "object",
+                  "description": "Custom annotations to apply to the PersistentVolumeClaim created by the Alertmanager StatefulSet.",
+                  "additionalProperties": {
+                    "type": "string"
+                  },
+                  "default": {}
+                },
+                "labels": {
+                  "type": "object",
+                  "description": "Custom labels to apply to the PersistentVolumeClaim created by the Alertmanager StatefulSet.",
+                  "additionalProperties": {
+                    "type": "string"
+                  },
+                  "default": {}
                 }
             }
         },

charts/alertmanager/values.yaml

@@ -276,6 +276,14 @@ persistence:
   ##
   enabled: true
 
+  ## Custom annotations for the PVC created by the alertmanager StatefulSet.
+  ## Useful for configuring storage provider options such as disk type, KMS encryption keys, or custom volume name prefixes.
+  annotations: {}
+
+  ## Custom labels for the PVC created by the alertmanager StatefulSet.
+  ## Useful for selecting, grouping, and organizing so that they can be queried or targeted in deployments, policies, etc.
+  labels: {}
+
   ## Persistent Volume Storage Class
   ## If defined, storageClassName: <storageClass>
   ## If set to "-", storageClassName: "", which disables dynamic provisioning