Creating a Cluster Configuration
Before creating the cluster, you need to create a new cluster configuration file or use an existing one in Streaming with Apache Kafka..
A default configuration is provided when you create a Kafka cluster. You can use that or create a custom one.
If you choose to use a custom configuration, we recommend you create the cluster configuration file before creating the Kafka cluster. After a Kafka cluster is created, you can still update the cluster configuration file, but with certain limitations.
- This task can't be performed using the Console. But, you can provide the cluster configuration when creating a cluster using the Console. 
- Use the - cluster-config createcommand and required parameters to create the configuration file for a Kafka cluster:- oci kafka cluster-config create -c <compartment-ocid> --latest-config '{"properties":{"<key1>":"<value1>","<key2>":"<value2>"}}'- As a best practice, you can create a configuration file - config_name.propertieswith all the required property key-value pairs and then provide this file to the- cluster-config createcommand:- oci kafka cluster-config create -c <compartment-ocid> --latest-config <file-name>- For a complete list of parameters and values for CLI commands, see the CLI Command Reference. 
- Run the - CreateKafkaClusterConfigoperation to create a cluster configuration file.