You can configure AWS PrivateLink to enable private communication between the serverless runtime environment hosted on AWS platform and an Amazon Redshift endpoint.
To configure AWS PrivateLink using a serverless runtime environment, specify the direct node address in the Advanced Custom Properties field in the serverless runtime environment properties.
For more information about configuring a serverless runtime environment using AWS PrivateLink, see "Serverless runtime environments" in Runtime Environments in the Administrator help.