Backend "s3"

 terraform {
  backend "s3" {
    bucket = "your-terraform-states"
    key    = "terraform.tfstate"
    region = "us-west-2"
    dynamodb_table = "your-terraform-states"
    profile = "your-profile"
    workspace_key_prefix = "your-workspace"
  }
}

See also

• Terraform backends: S3, Terraform S3 backend: dynamodb table, GCS, remote

https://www.terraform.io/docs/language/settings/backends/s3.html#key