You can easily get started by enabling the service with a few clicks in the Amazon Management Console. You can specify an optional Amazon SNS topic to receive notifications about configuration changes. You can also specify an Amazon S3 bucket where you want to the information recorded by Amazon Config to be delivered—the service handles everything else. When you enable the service, Amazon Config discovers your Amazon Web Services resources and begins recording configuration changes. Amazon Config also represents the relationships between your resources (e.g., an Amazon EBS volume attached to an Amazon EC2 instance).
After enabling the service, you can access information about the configuration of any supported resource using the Amazon Management Console, CLI, or SDKs. You don’t need to worry about installing and maintaining agents for data collection or managing a central configuration datastore.
For details about supported resource types and more, refer to Amazon Config Documentation