Use CreateDBClusterParameterGroup with an Amazon SDK or command line tool

    /// <summary>
    /// Create a custom cluster parameter group.
    /// </summary>
    /// <param name="parameterGroupFamily">The family of the parameter group.</param>
    /// <param name="groupName">The name for the new parameter group.</param>
    /// <param name="description">A description for the new parameter group.</param>
    /// <returns>The new parameter group object.</returns>
    public async Task<DBClusterParameterGroup> CreateCustomClusterParameterGroupAsync(
        string parameterGroupFamily,
        string groupName,
        string description)
    {
        var request = new CreateDBClusterParameterGroupRequest
        {
            DBParameterGroupFamily = parameterGroupFamily,
            DBClusterParameterGroupName = groupName,
            Description = description,
        };

        var response = await _amazonRDS.CreateDBClusterParameterGroupAsync(request);
        return response.DBClusterParameterGroup;
    }

        Aws::Client::ClientConfiguration clientConfig;
        // Optional: Set to the AWS Region (overrides config file).
        // clientConfig.region = "us-east-1";

    Aws::RDS::RDSClient client(clientConfig);

        Aws::RDS::Model::CreateDBClusterParameterGroupRequest request;
        request.SetDBClusterParameterGroupName(CLUSTER_PARAMETER_GROUP_NAME);
        request.SetDBParameterGroupFamily(dbParameterGroupFamily);
        request.SetDescription("Example cluster parameter group.");

        Aws::RDS::Model::CreateDBClusterParameterGroupOutcome outcome =
                client.CreateDBClusterParameterGroup(request);

        if (outcome.IsSuccess()) {
            std::cout << "The DB cluster parameter group was successfully created."
                      << std::endl;
        }
        else {
            std::cerr << "Error with Aurora::CreateDBClusterParameterGroup. "
                      << outcome.GetError().GetMessage()
                      << std::endl;
            return false;
        }

type DbClusters struct {
	AuroraClient *rds.Client
}



// CreateParameterGroup creates a DB cluster parameter group that is based on the specified
// parameter group family.
func (clusters *DbClusters) CreateParameterGroup(
	parameterGroupName string, parameterGroupFamily string, description string) (
	*types.DBClusterParameterGroup, error) {

	output, err := clusters.AuroraClient.CreateDBClusterParameterGroup(context.TODO(),
		&rds.CreateDBClusterParameterGroupInput{
			DBClusterParameterGroupName: aws.String(parameterGroupName),
			DBParameterGroupFamily:      aws.String(parameterGroupFamily),
			Description:                 aws.String(description),
		})
	if err != nil {
		log.Printf("Couldn't create parameter group %v: %v\n", parameterGroupName, err)
		return nil, err
	} else {
		return output.DBClusterParameterGroup, err
	}
}

    public static void createDBClusterParameterGroup(RdsClient rdsClient, String dbClusterGroupName,
            String dbParameterGroupFamily) {
        try {
            CreateDbClusterParameterGroupRequest groupRequest = CreateDbClusterParameterGroupRequest.builder()
                    .dbClusterParameterGroupName(dbClusterGroupName)
                    .dbParameterGroupFamily(dbParameterGroupFamily)
                    .description("Created by using the AWS SDK for Java")
                    .build();

            CreateDbClusterParameterGroupResponse response = rdsClient.createDBClusterParameterGroup(groupRequest);
            System.out.println("The group name is " + response.dbClusterParameterGroup().dbClusterParameterGroupName());

        } catch (RdsException e) {
            System.out.println(e.getLocalizedMessage());
            System.exit(1);
        }
    }

suspend fun createDBClusterParameterGroup(dbClusterGroupNameVal: String?, dbParameterGroupFamilyVal: String?) {
    val groupRequest = CreateDbClusterParameterGroupRequest {
        dbClusterParameterGroupName = dbClusterGroupNameVal
        dbParameterGroupFamily = dbParameterGroupFamilyVal
        description = "Created by using the AWS SDK for Kotlin"
    }

    RdsClient { region = "us-west-2" }.use { rdsClient ->
        val response = rdsClient.createDbClusterParameterGroup(groupRequest)
        println("The group name is ${response.dbClusterParameterGroup?.dbClusterParameterGroupName}")
    }
}

class AuroraWrapper:
    """Encapsulates Aurora DB cluster actions."""

    def __init__(self, rds_client):
        """
        :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client.
        """
        self.rds_client = rds_client

    @classmethod
    def from_client(cls):
        """
        Instantiates this class from a Boto3 client.
        """
        rds_client = boto3.client("rds")
        return cls(rds_client)


    def create_parameter_group(
        self, parameter_group_name, parameter_group_family, description
    ):
        """
        Creates a DB cluster parameter group that is based on the specified parameter group
        family.

        :param parameter_group_name: The name of the newly created parameter group.
        :param parameter_group_family: The family that is used as the basis of the new
                                       parameter group.
        :param description: A description given to the parameter group.
        :return: Data about the newly created parameter group.
        """
        try:
            response = self.rds_client.create_db_cluster_parameter_group(
                DBClusterParameterGroupName=parameter_group_name,
                DBParameterGroupFamily=parameter_group_family,
                Description=description,
            )
        except ClientError as err:
            logger.error(
                "Couldn't create parameter group %s. Here's why: %s: %s",
                parameter_group_name,
                err.response["Error"]["Code"],
                err.response["Error"]["Message"],
            )
            raise
        else:
            return response

    // Select an engine family and create a custom DB cluster parameter group. rds.CreateDbClusterParameterGroup(DBParameterGroupFamily='aurora-mysql8.0')
    pub async fn set_engine(&mut self, engine: &str, version: &str) -> Result<(), ScenarioError> {
        self.engine_family = Some(engine.to_string());
        self.engine_version = Some(version.to_string());
        let create_db_cluster_parameter_group = self
            .rds
            .create_db_cluster_parameter_group(
                DB_CLUSTER_PARAMETER_GROUP_NAME,
                DB_CLUSTER_PARAMETER_GROUP_DESCRIPTION,
                engine,
            )
            .await;

        match create_db_cluster_parameter_group {
            Ok(CreateDbClusterParameterGroupOutput {
                db_cluster_parameter_group: None,
                ..
            }) => {
                return Err(ScenarioError::with(
                    "CreateDBClusterParameterGroup had empty response",
                ));
            }
            Err(error) => {
                if error.code() == Some("DBParameterGroupAlreadyExists") {
                    info!("Cluster Parameter Group already exists, nothing to do");
                } else {
                    return Err(ScenarioError::new(
                        "Could not create Cluster Parameter Group",
                        &error,
                    ));
                }
            }
            _ => {
                info!("Created Cluster Parameter Group");
            }
        }

        Ok(())
    }

    pub async fn create_db_cluster_parameter_group(
        &self,
        name: &str,
        description: &str,
        family: &str,
    ) -> Result<CreateDbClusterParameterGroupOutput, SdkError<CreateDBClusterParameterGroupError>>
    {
        self.inner
            .create_db_cluster_parameter_group()
            .db_cluster_parameter_group_name(name)
            .description(description)
            .db_parameter_group_family(family)
            .send()
            .await
    }

#[tokio::test]
async fn test_scenario_set_engine() {
    let mut mock_rds = MockRdsImpl::default();

    mock_rds
        .expect_create_db_cluster_parameter_group()
        .with(
            eq("RustSDKCodeExamplesDBParameterGroup"),
            eq("Parameter Group created by Rust SDK Code Example"),
            eq("aurora-mysql"),
        )
        .return_once(|_, _, _| {
            Ok(CreateDbClusterParameterGroupOutput::builder()
                .db_cluster_parameter_group(DbClusterParameterGroup::builder().build())
                .build())
        });

    let mut scenario = AuroraScenario::new(mock_rds);

    let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await;

    assert_eq!(set_engine, Ok(()));
    assert_eq!(Some("aurora-mysql"), scenario.engine_family.as_deref());
    assert_eq!(Some("aurora-mysql8.0"), scenario.engine_version.as_deref());
}

#[tokio::test]
async fn test_scenario_set_engine_not_create() {
    let mut mock_rds = MockRdsImpl::default();

    mock_rds
        .expect_create_db_cluster_parameter_group()
        .with(
            eq("RustSDKCodeExamplesDBParameterGroup"),
            eq("Parameter Group created by Rust SDK Code Example"),
            eq("aurora-mysql"),
        )
        .return_once(|_, _, _| Ok(CreateDbClusterParameterGroupOutput::builder().build()));

    let mut scenario = AuroraScenario::new(mock_rds);

    let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await;

    assert!(set_engine.is_err());
}

#[tokio::test]
async fn test_scenario_set_engine_param_group_exists() {
    let mut mock_rds = MockRdsImpl::default();

    mock_rds
        .expect_create_db_cluster_parameter_group()
        .withf(|_, _, _| true)
        .return_once(|_, _, _| {
            Err(SdkError::service_error(
                CreateDBClusterParameterGroupError::DbParameterGroupAlreadyExistsFault(
                    DbParameterGroupAlreadyExistsFault::builder().build(),
                ),
                Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()),
            ))
        });

    let mut scenario = AuroraScenario::new(mock_rds);

    let set_engine = scenario.set_engine("aurora-mysql", "aurora-mysql8.0").await;

    assert!(set_engine.is_err());
}