Aggregate events from multiple EventBridge event busses to a central bus
This pattern demonstrates how to aggregate all your events from multiple event busses (in the same region) to a central event bus in a different region.
This pattern is deployed using Terraform to create a central EventBridge bus, EventBridge rules on fan-in busses and all IAM resources required.
The event busses to aggregate can be defined in `terraform.tfvars` file (Sample ARNs are provided, replace with event bus ARNs as needed).
The `provider.tf` file also lists the AWS Regions of the fan-in event bus and central event bus (replace these based on where your event busses exist and where you want your central bus to be created).