fix(docs): Update getting-started script pre-25.7.0 (#962)

* docs: Move listenerClass to correct position

* docs: Workaround ZooKeeper client rDNS issue

See: #959

* docs: Update the listener service name

Note: It is now at the role (server) level and not rolegroup level (server-default)

Author: NickLarsenNZ

docs/modules/zookeeper/examples/getting_started/code/getting_started.sh

@@ -64,7 +64,7 @@ zkCli_ls() {
 kubectl run my-pod \
   --stdin --tty --quiet --restart=Never \
   --image oci.stackable.tech/sdp/zookeeper:3.9.3-stackable0.0.0-dev -- \
-  bin/zkCli.sh -server simple-zk-server-default:2282 ls / > /dev/null && \
+  bin/zkCli.sh -server simple-zk-server:2282 ls / > /dev/null && \
   kubectl logs my-pod && \
   kubectl delete pods my-pod
 # end::zkcli-ls[]

docs/modules/zookeeper/examples/getting_started/code/getting_started.sh.j2

@@ -64,7 +64,7 @@ zkCli_ls() {
 kubectl run my-pod \
   --stdin --tty --quiet --restart=Never \
   --image oci.stackable.tech/sdp/zookeeper:3.9.3-stackable{{ versions.zookeeper }} -- \
-  bin/zkCli.sh -server simple-zk-server-default:2282 ls / > /dev/null && \
+  bin/zkCli.sh -server simple-zk-server:2282 ls / > /dev/null && \
   kubectl logs my-pod && \
   kubectl delete pods my-pod
 # end::zkcli-ls[]

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

@@ -4,11 +4,11 @@ kind: ZookeeperCluster
 metadata:
   name: simple-zk
 spec:
-  clusterConfig:
-    listenerClass: external-unstable
   image:
     productVersion: 3.9.3
   servers:
+    roleConfig:
+      listenerClass: cluster-internal
     roleGroups:
       default:
         replicas: 3

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

@@ -4,11 +4,11 @@ kind: ZookeeperCluster
 metadata:
   name: simple-zk
 spec:
-  clusterConfig:
-    listenerClass: external-unstable
   image:
     productVersion: 3.9.3
   servers:
+    roleConfig:
+      listenerClass: cluster-internal
     roleGroups:
       default:
         replicas: 3