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個人的に管理しやすいterraformディレクトリ設計

Last updated at Posted at 2023-01-25

個人的に管理しやすいterraformのディレクトリを考えてみました。
3レイヤードアーキテクチャとかありますが、最小限の個人的に使ってるディレクトリの構造を紹介します。

ディレクトリ構造

.
├── entrypoint #entry point。基本ここをapplyすればok
│   └── <プロジェクトの名前> #プロジェクトの名前を記述し、必要な環境分ディレクトリを作成する
│       ├── dev
│       │   └── main.tf #環境別にterraform applyする
│       ├── prod
│       │   ├── main.tf
│       │   ├── <credential>.json #credentialはここに置く
│       └── stg
│           └── main.tf
├── modules //各モジュールを配置する
│   ├── aws
│   └── gcp
│       ├── gcr
│       ├── gcs
│       ├── gke
│       ├── networking
│       └── redis
└── readme.md //ドキュメント

entrypoint//<環境名>/main.tfの中のtemplate

# 環境別の変数を入れる
locals {
  gcp_project = "gcpプロジェクトID"
  env         = "dev"
  project     = "プロジェクト名"
  region      = "asia-northeast1"
  zone        = "asia-northeast1-a"
}

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "4.50.0"
    }
  }
}

provider "google" {
  credentials = file("<credentialを入れる>.json")
  project     = local.gcp_project
  region      = local.region
  zone        = local.zone
}


#####ここからmoduleを呼び出す。
module "networking" {
  source  = "../../../modules/networking" #相対パス注意
  project = local.project
  env     = local.env
}

Terraform Cloudを利用した記事

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