doc: mention cluster_config usage status

Author: razvan

deploy/helm/spark-k8s-operator/crds/crds.yaml

@@ -1119,7 +1119,7 @@ spec:
               properties:
                 clusterConfig:
                   default: {}
-                  description: Global Spark history server configuration that applies to all roles and role groups.
+                  description: Global Spark history server configuration that applies to all roles and role groups. Currently not in use.
                   type: object
                 image:
                   anyOf:
@@ -1867,7 +1867,7 @@ spec:
                   type: array
                 clusterConfig:
                   default: {}
-                  description: Global Spark Connect server configuration that applies to all roles.
+                  description: Global Spark Connect server configuration that applies to all roles. Currently not in use.
                   type: object
                 clusterOperation:
                   default:

rust/operator-binary/src/connect/crd.rs

@@ -79,6 +79,7 @@ pub mod versioned {
         pub image: ProductImage,
 
         /// Global Spark Connect server configuration that applies to all roles.
+        /// Currently not in use.
         #[serde(default)]
         pub cluster_config: v1alpha1::SparkConnectServerClusterConfig,
 

rust/operator-binary/src/crd/history.rs

@@ -82,6 +82,7 @@ pub mod versioned {
         pub image: ProductImage,
 
         /// Global Spark history server configuration that applies to all roles and role groups.
+        /// Currently not in use.
         #[serde(default)]
         pub cluster_config: v1alpha1::SparkHistoryServerClusterConfig,