How to specify an AWS Region using Terraform

[hasez]

I use two regions AWS.

• main: ap-notheast-1
• secondary: us-east-1

How do I deploy log-ingestion to each region by Terraform ?

my terraform

I specified providers in the module "newrelic_log_ingestion_virginia" , but warnings occur when executing the plan.
Also, in executing apply, referenced to the main region.

provider "newrelic" {
  account_id = var.newrelic_account_id
  api_key    = var.newrelic_api_key
  region     = "US"
}
provider "aws" {
  region = "ap-northeast-1"
}
provider "aws" {
  region = "us-east-1"
  alias  = "virginia"
}
module "newrelic_log_ingestion" {
  source                       = "github.com/newrelic/aws-log-ingestion"
  nr_license_key               = var.newrelic_license_key
}
module "newrelic_log_ingestion_virginia" {
  source                       = "github.com/newrelic/aws-log-ingestion"
  nr_license_key               = var.newrelic_license_key
  providers = {
    aws = aws.virginia
  }
}

I think to add required_providers to aws-log-ingestion/terraform.tf.

• For example, like this

  terraform {
    required_version = ">= 0.14, < 2.0"
  +  required_providers {
  +    aws = {
  +      source = "hashicorp/aws"
  +    }
    }
  }

Is there another way?