How do I setup VPC peering across two VPCs that are in different regions?
Presumably I can use the [vpc-peering](https://github.com/gruntwork-io/terraform-aws-vpc/tree/master/modules/vpc-peering) module, but that doesn't seem to support multiple regions.
You can use the [vpc-peering-cross-accounts-accepter](https://github.com/gruntwork-io/terraform-aws-vpc/tree/master/modules/vpc-peering-cross-accounts-accepter) and [vpc-peering-cross-accounts-requester](https://github.com/gruntwork-io/terraform-aws-vpc/tree/master/modules/vpc-peering-cross-accounts-requester) modules for this purpose. Although these modules are labeled as "cross accounts," they work to support cross region as well. Check out the [vpc-peering-cross-accounts example](https://github.com/gruntwork-io/terraform-aws-vpc/tree/master/examples/vpc-peering-cross-accounts), which is an example that uses these two modules to setup a cross region peer.