In the settings page, you’ll find a form for adding your credentials:
Add an AWS integration. These parameters will also be available as environment variables.
You are encouraged to use different access keys for different environments, although they can be shared.
Access keys are created directly in the AWS console, via the AWS CLI, or via the AWS API. Make sure that the IAM user you create the access key for has access to the appropriate IAM permissions for your intended integration use case.