# AWS::MSK::ServerlessCluster VpcConfig ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{ "SecurityGroups" : [ String, ... ], "SubnetIds" : [ String, ... ] }### YAML
SecurityGroups: - String SubnetIds: - String## Properties #### SecurityGroups _Required_: No _Type_: List of String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### SubnetIds _Required_: Yes _Type_: List of String _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)