使用 Terraform 创建环境

Cloud Composer 1 | Cloud Composer 2

本页面是与介绍如何创建环境的主页面的配套页面。它演示了如何使用 Terraform 在现有 Google Cloud 项目中为此环境设置 Cloud Composer 环境和用户代管式服务帐号。您可以使用此页面作为起点，然后根据需要为您的环境添加更多配置参数。

准备工作

  • 本指南假定您的 Google Cloud 项目配置了结算：

    • 您可以使用现有项目。
    • 您可以使用 Google Cloud 控制台、Google Cloud CLI、API 或 Python 客户端库创建新项目。
    • 您可以使用 Terraform 创建和管理项目。如需了解详情，请参阅 google_project 资源的 Terraform 文档。

  • 安装 gcloud CLI。

向 Google Cloud 进行身份验证

如需进行 Google Cloud 身份验证，请运行以下命令：

gcloud auth application-default login

如需详细了解此命令，请参阅 gcloud auth application-default。

在 Terraform 中配置 Google 提供方

指定现有项目 ID 和资源的默认区域。您的 Cloud Composer 环境会使用此区域。

provider "google-beta" {
  project = "example-project"
  region  = "us-central1"
}

启用 Cloud Composer API

在项目中启用 Cloud Composer API：

resource "google_project_service" "composer_api" {
  provider = google-beta
  project = "example-project"
  service = "composer.googleapis.com"
  // Disabling Cloud Composer API might irreversibly break all other
  // environments in your project.
  // This parameter prevents automatic disabling
  // of the API when the resource is destroyed.
  // We recommend to disable the API only after all environments are deleted.
  disable_on_destroy = false
}

在您的项目中创建自定义服务帐号

默认情况下，Cloud Composer 环境使用默认的 Compute Engine 帐号。本指南演示了另一种方法，即创建新的服务帐号，该帐号具有运行 Cloud Composer 环境所需的所有权限。

定义具有以下角色和权限的自定义服务帐号。如需详细了解环境的服务帐号的权限，请参阅使用 IAM 进行访问权限控制。

resource "google_service_account" "custom_service_account" {
  provider = google-beta
  account_id   = "custom-service-account"
  display_name = "Example Custom Service Account"
}

resource "google_project_iam_member" "custom_service_account" {
  provider = google-beta
  project  = "example-project"
  member   = format("serviceAccount:%s", google_service_account.custom_service_account.email)
  // Role for Public IP environments
  role     = "roles/composer.worker"
}

创建环境

使用 Terraform 创建环境。

该示例演示了如何创建自定义服务帐号的环境。您可以添加更多参数来定义环境的其他配置参数，例如自定义规模和性能参数或者其他 PyPI 软件包。

如需详细了解其他参数，请参阅创建环境。

resource "google_composer_environment" "example_environment" {
  provider = google-beta
  name = "example-environment"

  config {

    node_config {
      service_account = google_service_account.custom_service_account.email
    }

  }
}

完整的 Terraform 脚本（默认参数）

provider "google-beta" {
  project = "example-project"
  region  = "us-central1"
}

resource "google_project_service" "composer_api" {
  provider = google-beta
  project = "example-project"
  service = "composer.googleapis.com"
  // Disabling Cloud Composer API might irreversibly break all other
  // environments in your project.
  disable_on_destroy = false
}

resource "google_composer_environment" "example_environment" {
  provider = google-beta
  name = "example-environment"

  config {

    // Add your environment configuration here

  }
}

完整的 Terraform 脚本（自定义服务帐号）

provider "google-beta" {
  project = "example-project"
  region  = "us-central1"
}

resource "google_project_service" "composer_api" {
  provider = google-beta
  project = "example-project"
  service = "composer.googleapis.com"
  // Disabling Cloud Composer API might irreversibly break all other
  // environments in your project.
  disable_on_destroy = false
}

resource "google_service_account" "custom_service_account" {
  provider = google-beta
  account_id   = "custom-service-account"
  display_name = "Example Custom Service Account"
}

resource "google_project_iam_member" "custom_service_account" {
  provider = google-beta
  project  = "example-project"
  member   = format("serviceAccount:%s", google_service_account.custom_service_account.email)
  // Role for Public IP environments
  role     = "roles/composer.worker"
}

resource "google_composer_environment" "example_environment" {
  provider = google-beta
  name = "example-environment"

  config {

    node_config {
      service_account = google_service_account.custom_service_account.email
    }

  }
}

后续步骤

如需了解如何使用 Terraform 配置环境，请参阅其他文档页面。例如：