Terraformを使ってGCP上にSpannerを作成する

内容

Terraformを使って、GCP Project上にSpannerを作成します。

Spannerの作成

Terraformコード

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "5.8.0"
    }
  }
}

provider "google" {
  project = var.project_id
  region  = "asia-northeast1"
}

variable "project_id" {
  description = "The project ID to deploy into"
}

resource "google_spanner_instance" "this" {
  config       = "regional-us-central1"
  display_name = "Spanner Instance"
  num_nodes    = 1
}

こちらがSpanner Instanceを作成するためのTerraformのコードです。

Terraform Apply

上記コードの作成が完了したら、terraform initとterraform applyを実行します。

$ terraform init
$ terraform apply
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:

  # google_spanner_instance.this will be created
  + resource "google_spanner_instance" "this" {
      + config           = "regional-us-central1"
      + display_name     = "Spanner Instance"
      + effective_labels = (known after apply)
      + force_destroy    = false
      + id               = (known after apply)
      + name             = (known after apply)
      + num_nodes        = 1
      + processing_units = (known after apply)
      + project          = "project-name"
      + state            = (known after apply)
      + terraform_labels = (known after apply)
    }

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

google_spanner_instance.this: Creating...
google_spanner_instance.this: Still creating... [10s elapsed]
google_spanner_instance.this: Creation complete after 19s [id=project-name/tfgen-spanid-202405061234234]

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

※Databaseの起動のため、Apply後は数分時間がかかります。

APIエラー

google_spanner_instance.this: Creating...
╷
│ Error: Error creating Instance: googleapi: Error 403: Cloud Spanner API has not been used in project project-name before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/spanner.googleapis.com/overview?project=project-name then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.

というエラーが出たら、エラーログに書いてあるURLにアクセスしてAPIを有効化してください。

GCP上にリソースができていることを確認する

GCP上でSpannerのページにアクセスすると、上記のように今回作成したSpanner Instanceが作成されていることを確認できます。