fix listener examples / comments

Author: maltesander

docs/modules/trino/examples/getting_started/code/trino.yaml

@@ -11,7 +11,7 @@ spec:
       matchLabels:
         trino: simple-trino
   coordinators:
-    config:
+    roleConfig:
       listenerClass: external-unstable
     roleGroups:
       default:

docs/modules/trino/examples/getting_started/code/trino.yaml.j2

@@ -11,7 +11,7 @@ spec:
       matchLabels:
         trino: simple-trino
   coordinators:
-    config:
+    roleConfig:
       listenerClass: external-unstable
     roleGroups:
       default:

docs/modules/trino/pages/usage-guide/listenerclass.adoc

@@ -2,13 +2,13 @@
 :description: Configure Trino service exposure with ListenerClasses: cluster-internal, external-unstable, or external-stable.
 
 The operator deploys a xref:listener-operator:listener.adoc[Listener] for the coodinator pod.
-The listener defaults to only being accessible from within the Kubernetes cluster, but this can be changed by setting `.spec.coordinators.config.listenerClass`:
+The listener defaults to only being accessible from within the Kubernetes cluster, but this can be changed by setting `.spec.coordinators.roleConfig.listenerClass`:
 
 [source,yaml]
 ----
 spec:
   coordinators:
-    config:
+    roleConfig:
       listenerClass: external-unstable  # <1>
     ...
   workers:

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

@@ -845,7 +845,7 @@ impl v1alpha1::TrinoCluster {
             }))
     }
 
-    /// Returns the headless rolegroup service name `simple-trino-coordinator-default-<HEADLESS_SERVICE_SUFFIX>`.
+    /// Returns the metrics rolegroup service name `simple-trino-coordinator-default-<METRICS_SERVICE_SUFFIX>`.
     pub fn rolegroup_metrics_service_name(role_group_ref_object_name: &str) -> String {
         format!("{}-{}", role_group_ref_object_name, METRICS_SERVICE_SUFFIX)
     }