Terraform init の導入 · Cloudflare Terraform ドキュメント

このチュートリアルでは、Terraform の始め方を説明します。ドメイン（example.com）を Cloudflare に登録し、すべてを Terraform で管理する想定です。ここでは、www.example.com を Web サーバー 203.0.113.10 に向ける DNS レコードを作成します。

始める前に、次を用意してください。

Terraform をインストール済み
このチュートリアルでリソースを編集できる権限を持つ API トークンを作成済み

1. 設定を作成する

main.tf というファイルを作成し、API トークン、ゾーン ID、アカウント ID、ドメインに自分の値を入れます。

terraform {
  required_providers {
    cloudflare = {
      source  = "cloudflare/cloudflare"
      version = "~> 5"
    }
  }
}

provider "cloudflare" {
  api_token = "<YOUR_API_TOKEN>"
}

variable "zone_id" {
  default = "<YOUR_ZONE_ID>"
}

variable "account_id" {
  default = "<YOUR_ACCOUNT_ID>"
}

variable "domain" {
  default = "<YOUR_DOMAIN>"
}

resource "cloudflare_dns_record" "www" {
  zone_id = "<YOUR_ZONE_ID>"
  name    = "www"
  content = "203.0.113.10"
  type    = "A"
  ttl     = 1
  proxied = true
  comment = "Domain verification record"
}

2. 初期化と plan

Terraform を初期化し、Cloudflare プロバイダーをダウンロードします。

terraform init

作成される内容を確認します。

terraform plan


Terraform used the selected providers to generate the following execution plan. Resource actions are
indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # cloudflare_dns_record.www will be created
  + resource "cloudflare_dns_record" "www" {
      + comment             = "Domain verification record"
      + comment_modified_on = (known after apply)
      + content             = "203.0.113.10"
      + created_on          = (known after apply)
      + id                  = (known after apply)
      + meta                = (known after apply)
      + modified_on         = (known after apply)
      + name                = "www"
      + proxiable           = (known after apply)
      + proxied             = true
      + settings            = (known after apply)
      + tags                = (known after apply)
      + tags_modified_on    = (known after apply)
      + ttl                 = 1
      + type                = "A"
      + zone_id             = "<YOUR_ZONE_ID>"
    }

Plan: 1 to add, 0 to change, 0 to destroy.

3. 適用と確認

設定を適用します。

terraform apply

確認が表示されたら yes と入力します。

Terraform used the selected providers to generate the following execution plan. Resource actions are
indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # cloudflare_dns_record.www will be created
  + resource "cloudflare_dns_record" "www" {
      + comment             = "Domain verification record"
      + comment_modified_on = (known after apply)
      + content             = "203.0.113.10"
      + created_on          = (known after apply)
      + id                  = (known after apply)
      + meta                = (known after apply)
      + modified_on         = (known after apply)
      + name                = "www"
      + proxiable           = (known after apply)
      + proxied             = true
      + settings            = (known after apply)
      + tags                = (known after apply)
      + tags_modified_on    = (known after apply)
      + ttl                 = 1
      + type                = "A"
      + zone_id             = "<YOUR_ZONE_ID>"
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

  Enter a value: yes

cloudflare_dns_record.www: Creating...
cloudflare_dns_record.www: Creation complete after 0s

Apply complete! Resources: 1 added, 0 changed, 0 destroyed.

作成後、DNS レコードを確認します。

dig www.example.com

Web サーバーの応答を確認します。

curl https://www.example.com

Hello, this is 203.0.113.10!

API 呼び出しの結果をすべて確認するには、次を実行します。

terraform show

Cloudflare ダッシュボードの DNS > Records ページでも確認できます。

Account home を開く ↗

1 – Terraform の初期化

1. 設定を作成する

2. 初期化と plan

3. 適用と確認