terraform_remote_state/output.tf

locals {
  backend_tf_dynamo   = local.dynamodb_support != true ? "" : <<EOF
For your project(s), use a backend.tf containing the following:

terraform {
  backend "s3" {
    bucket         = "${aws_s3_bucket.state_storage.id}"
    key            = SOMETHING UNIQUE PER PROJECT
    region         = "${local.region}"
    encrypt        = true
    dynamodb_table = "${aws_dynamodb_table.lock_table[0].id}"
    profile        = "${local.profile}"
  }
}
EOF
  backend_tf_nodynamo = <<EOF
For your project(s), use a backend.tf containing the following:

terraform {
  backend "s3" {
    bucket         = "${aws_s3_bucket.state_storage.id}"
    key            = SOMETHING UNIQUE PER PROJECT
    region         = "${local.region}"
    encrypt        = true
    profile        = "${local.profile}"
  }
}
EOF
  backend_tf          = local.dynamodb_support == true ? local.backend_tf_dynamo : local.backend_tf_nodynamo
}

output "backend_tf" {
  value = local.backend_tf
}