During the configuration of AWS Config, you will be asked to specify a role:
As stated in the screenshot, this is used to allow AWS Config to gain read-only access to your resources to record CI data. It will also be used to publish data to both your selected SNS topic for your configuration stream and your S3 bucket to store configuration history and snapshots. You can use an existing role within your AWS account, or allow AWS Config to select an existing service-linked role.
Now that we have seen the various components of AWS Config, let's briefly understand the Config process, which will help us understand how these components work together to provide the information necessary for the audit.
