fix(doc): kafka setup doc updates (#15304)

Author: chakru-r

docs/deploy/confluent-cloud.md

@@ -124,21 +124,23 @@ cp-schema-registry:
   enabled: false
 ```
 
-Next, disable the `kafkaSetupJob` service:
+Next, disable the automatic creation of topics by the system update job:
 
 ```
-kafkaSetupJob:
-    enabled: false
+global:
+  kafka:
+    precreateTopics: false
 ```
 
 Then, update the `kafka` configurations to point to your Confluent Cloud broker and schema registry instance, along with the topics you've created in Step 1:
 
 ```
-kafka:
-      bootstrap:
-        server: pkc-g4ml2.eu-west-2.aws.confluent.cloud:9092
-      schemaregistry:
-        url: https://plrm-qwlpp.us-east-2.aws.confluent.cloud
+global:
+  kafka:
+    bootstrap:
+      server: pkc-g4ml2.eu-west-2.aws.confluent.cloud:9092
+    schemaregistry:
+      url: https://plrm-qwlpp.us-east-2.aws.confluent.cloud
 ```
 
 Next, you'll want to create 2 new Kubernetes secrets, one for the JaaS configuration which contains the username and password for Confluent,

docs/how/kafka-config.md

@@ -87,6 +87,10 @@ the System Update container for topic setup:
 - (Deprecated) `METADATA_AUDIT_EVENT_NAME`: The name of the metadata audit event topic.
 - (Deprecated) `FAILED_METADATA_CHANGE_EVENT_NAME`: The name of the failed metadata change event topic.
 
+#### Topic Setup
+
+- `DATAHUB_PRECREATE_TOPICS`: Defaults to true, set this to false if you intend to create and configure the topics yourself and not have datahub create them.
+
 ### MCE Consumer (datahub-mce-consumer)
 
 - `METADATA_CHANGE_PROPOSAL_TOPIC_NAME`: The name of the topic for Metadata Change Proposals emitted by the ingestion framework.
@@ -274,9 +278,6 @@ Examples:
 
 Configurations specified in `topicDefaults` are applied to all topics by merging them with any configs defined per topic, with the per-topic config taking precedence over those specified in `topicDefault`.
 
-If you intend to create and configure the topics yourself and not have datahub create them, the kafka setup process of
-datahub-system-update can be turned off by setting env var DATAHUB_PRECREATE_TOPICS to false
-
 ## Debugging Kafka
 
 You can install [kafkacat](https://github.com/edenhill/kafkacat) to consume and produce messaged to Kafka topics.