# zone apex domain:サブドメインを含まないものを書く
variable "aws_acm_domain_name" {
  description = "Domain Name"
  default = "example.com"
}
# 取得対象のFQDN（サブドメイン付き）
variable "aws_acm_sub_domain_name" {
  description = "Sub Domain Name"
  default = "ex.example.com"
}
# 検証方法（mailはterraform外部で手作業が必要なので非推奨）
variable "aws_acm_validation_method" {
  description = "validation method"
  default = "DNS"
}
# tagはお好みでどうぞ
variable "aws_acm_env_tag" {
  description = "enviroment tag"
  default = "sample"
}
# 証明書発行リクエスト
resource "aws_acm_certificate" "cert" {
  domain_name       = "${var.aws_acm_sub_domain_name}"
  validation_method = "${var.aws_acm_validation_method}"

  tags {
    Environment = "${var.aws_acm_env_tag}"
  }

  lifecycle {
    # lifecycleにこれを入れておくのが推奨されています
    create_before_destroy = true
  }
}

# Route53で管理されているドメインの情報を持ってきます
data "aws_route53_zone" "zone" {
  name = "${var.aws_acm_domain_name}"
  private_zone = false
}

# DNSによる検証用レコードの登録
resource "aws_route53_record" "cert_validation" {
  name = "${aws_acm_certificate.cert.domain_validation_options.0.resource_record_name}"
  type = "${aws_acm_certificate.cert.domain_validation_options.0.resource_record_type}"
  zone_id = "${data.aws_route53_zone.zone.id}"
  records = ["${aws_acm_certificate.cert.domain_validation_options.0.resource_record_value}"]
  ttl = 60
}
# 検証
resource "aws_acm_certificate_validation" "cert" {
  certificate_arn = "${aws_acm_certificate.cert.arn}"
  validation_record_fqdns = ["${aws_route53_record.cert_validation.fqdn}"]
}