Hashicorp Terraform は、クラウド インフラストラクチャのプロビジョニングと管理に使用できる Infrastructure as Code（IaC）ツールです。Terraform には、クラウド プロバイダや他の API とやり取りできるプロバイダというプラグインが用意されています。 Google Cloud用の Terraform プロバイダ（Google Cloud プロバイダ）を使用して、 Google Cloudインフラストラクチャをプロビジョニングして管理できます。
Terraform を使用するメリット
このセクションでは、Terraform を使用して Google Cloud インフラストラクチャのプロビジョニングと管理を行うメリットについて説明します。
Terraform は、Google Cloud インフラストラクチャのプロビジョニングと自動化で最もよく使用されるツールです。Google Cloudプロバイダを使用すると、同じ宣言型構文とツールを使用してすべての Google Cloud リソースを構成して管理できます。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[[["\u003cp\u003eTerraform is an Infrastructure as Code (IaC) tool for provisioning and managing cloud infrastructure, particularly effective for Google Cloud through its dedicated providers.\u003c/p\u003e\n"],["\u003cp\u003eUsing Terraform on Google Cloud offers benefits such as creating reproducible environments, generating execution plans, reusing code through modules, and effectively managing the state of your infrastructure.\u003c/p\u003e\n"],["\u003cp\u003eTerraform utilizes a declarative syntax where you define your desired infrastructure end-state, and it uses its CLI to provision and manage your configuration accordingly.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eterraform apply\u003c/code\u003e command provisions infrastructure based on an execution plan, interfacing with Google Cloud APIs and maintaining a state file to track resource changes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003egoogle\u003c/code\u003e and \u003ccode\u003egoogle-beta\u003c/code\u003e providers are used to provision and manage both general and beta Google Cloud APIs, respectively, and are developed using the Magic Modules tool.\u003c/p\u003e\n"]]],[],null,["# Overview of Terraform on Google Cloud\n\nHashicorp Terraform is an Infrastructure as code (IaC) tool that lets you\nprovision and manage cloud infrastructure. Terraform provides plugins called\n*providers* that lets you interact with cloud providers and other\nAPIs. You can use the *Terraform provider for Google Cloud*\n(*Google Cloud provider*) to provision and manage Google Cloud\ninfrastructure.\n\nBenefits of using Terraform\n---------------------------\n\nThis section explains some of the benefits of using Terraform to provision and\nmanage Google Cloud infrastructure:\n\n- Terraform is the most commonly used tool to provision and automate Google Cloud infrastructure. You can use the [Google Cloud\n provider](https://registry.terraform.io/providers/hashicorp/google/latest/docs) to configure and manage all Google Cloud resources using the same declarative syntax and tooling.\n- Terraform lets you specify your preferred end state for your infrastructure. You can then deploy the same configuration multiple times to create reproducible development, test, and production environments.\n- Terraform lets you generate an execution plan that shows what Terraform will do when you apply your configuration. This lets you avoid any surprises when you modify your infrastructure through Terraform.\n- Terraform lets you package and reuse common code in the form of [modules](https://registry.terraform.io/namespaces/terraform-google-modules). Modules present standard interfaces for creating cloud resources. They simplify projects by increasing readability and allow teams to organize infrastructure in readable blocks. Additionally, Google Cloud publishes a number of opinionated deployable modules as [blueprints](/docs/terraform/blueprints/terraform-blueprints) and getting-started examples as [Jump Start\n Solutions](/solutions?jump-start-solutions#section-3).\n- Terraform records the current state of your infrastructure and lets you manage state effectively. The Terraform state file keeps track of all resources in a deployment.\n\nUsing Terraform\n---------------\n\nTerraform has a declarative and configuration-oriented syntax, which you can use\nto [author the infrastructure](https://developer.hashicorp.com/terraform/language)\nthat you want to provision. Using this syntax, you'll define your preferred\nend-state for your infrastructure in a *Terraform configuration file* . You'll then\nuse the [Terraform CLI](/docs/terraform/basic-commands) to provision\ninfrastructure based on the configuration file.\n\nThe following steps explain how Terraform works:\n\n1. You describe the Google Cloud infrastructure you want to provision in a Terraform configuration file. You don't need to author code describing *how* to provision this configuration.\n2. You run the `terraform plan` command, which evaluates your configuration and generates an execution plan. You can review the plan and make changes as needed.\n3. Then, you run the `terraform apply` command, which performs the following actions:\n - It provisions your infrastructure based on your execution plan by invoking the corresponding Google Cloud APIs in the background.\n - It creates a *Terraform state file*, which is a JSON formatted mapping of resources in your configuration file to the resources in the real world infrastructure. Terraform uses this file to know the latest state of your infrastructure, and to determine when to create, update, and destroy resources.\n4. Subsequently, when you run `terraform apply`, Terraform uses the mapping in the state file to compare the existing infrastructure to the code, and make updates as necessary:\n - If a resource object defined in the configuration file does not exist in the state file, Terraform creates it.\n - If a resource object exists in the state file, but has a different configuration from your configuration file, Terraform updates the resource to match your configuration file.\n - If a resource object in the state file matches your configuration file, Terraform leaves the resource unchanged.\n\nGoogle Cloud providers\n----------------------\n\nThere are two providers that let you provision and manage Google Cloud\ninfrastructure:\n\n- `google`: Use this provider to provision and manage Google Cloud APIs.\n- `google-beta`: Use this provider to provision and manage Google Cloud beta APIs.\n\nFor instructions on using these providers, see the\n[Google Cloud provider configuration reference](https://registry.terraform.io/providers/hashicorp/google/latest/docs/guides/provider_reference).\n\n`google` and `google-beta` providers are developed using a tool called\n*Magic Modules* . Magic Modules allows contributors to make changes against a\nsingle codebase and develop both `google` and `google-beta` providers\nsimultaneously.\n\nYou can contribute to the Google Cloud providers using Magic Modules\nby following the instructions in the\n[Magic Modules contribution guide](https://googlecloudplatform.github.io/magic-modules/get-started/generate-providers/).\n\nWhat's next\n-----------\n\n- Learn how to [create a basic web server on Compute Engine using Terraform](/docs/terraform/get-started-with-terraform)\n- Learn how to [store Terraform state in a Cloud Storage bucket](/docs/terraform/resource-management/store-state)\n- Look through the various [Terraform for Google Cloud samples](/docs/samples?language=terraform)\n- Look through the [Terraform modules and blueprints for Google Cloud](/docs/terraform/blueprints/terraform-blueprints)"]]
