如何将策略附加到资源(在本例中为 PubSub 主题)?

How can I attach a policy to a resource (in this case a PubSub topic)?

resource "google_pubsub_topic" "topic" {
  name   = "argo-events"
}

resource "google_service_account" "argo_events_pubsub_publish" {
  account_id   = "pubsub-publish"
}

resource "google_project_iam_member" "argo_events_pubsub_publish" {
  role   = "roles/pubsub.editor"
  member = "serviceAccount:${google_service_account.argo_events_pubsub_publish.email}"
}

这将创建一个对项目的所有 PubSub 基础设施具有编辑权限的服务帐户。

如何将策略(由服务帐户 + roles/pubsub.editor 生成)附加到最初创建的主题?

(这样服务帐户就拥有 roles/pubsub.editor 的权限,但仅限于最初创建的名为“argo-events”的主题。)


问题是在 Terraform 实现类似于 GCP 通用概念的策略附件的假设下编写的。

有几种方法可以将策略附加到主题或订阅。有趣的是,该方法不是通用的,而是特定于您要绑定到的资源(在本例中为 pubsub 主题),并且至少有三种方法可以做到这一点:

在这种情况下,解决方案可能如下所示:

data "google_iam_policy" "topic" {
  binding {
    role = "roles/pubsub.publisher"
    members = [
      "serviceAccount:${google_service_account.argo_events_pubsub_publish.email}",
    ]
  }
}

resource "google_pubsub_topic_iam_policy" "policy" {
  topic = google_pubsub_topic.topic.name
  policy_data = data.google_iam_policy.topic.policy_data
}