[prometheus] Add new persistence attributes from alertmanager to prometheus values file (#6116)

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

Author: rb090

charts/prometheus/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: prometheus
 # renovate: github=prometheus/prometheus
 appVersion: v3.5.0
-version: 27.36.0
+version: 27.37.0
 kubeVersion: ">=1.19.0-0"
 description: Prometheus is a monitoring system and time series database.
 home: https://prometheus.io/

charts/prometheus/values.schema.json

@@ -736,4 +736,4 @@
             }
         }
     }
-}
+}

charts/prometheus/values.yaml

@@ -1311,8 +1311,34 @@ alertmanager:
   enabled: true
 
   persistence:
+    ## If true, storage will create or use Persistence Volume
+    ## If false, storage will use emptyDir
+    ##
+    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
+    ## If undefined (the default) or set to null, no storageClassName spec is
+    ## set, choosing the default provisioner.
+    ##
+    # storageClass: "-"
+    accessModes:
+      - ReadWriteOnce
     size: 2Gi
 
+    ## Configure emptyDir volume
+    ##
+    emptyDir: {}
+
   podSecurityContext:
     runAsUser: 65534
     runAsNonRoot: true