Question

我有2个存储区（分别为生产和暂存），并且我有一个服务帐户。我想将此帐户限制为只能访问登台存储桶。现在，我在https://cloud.google.com/iam/docs/conditions-overview上看到这应该可行。我这样创建了policy.json

{
  "bindings": [
    {
      "role": "roles/storage.objectCreator",
      "members": "serviceAccount:staging-service-account@lalala-co.iam.gserviceaccount.com",
      "condition": {
        "title": "staging bucket only",
        "expression": "resource.name.startsWith(\"projects/_/buckets/uploads-staging\")"
      }
    }
  ]
}

但是当我开枪gcloud projects set-iam-policy lalala policy.json时，我得到了：

The specified policy does not contain an "etag" field identifying a
specific version to replace. Changing a policy without an "etag" can
overwrite concurrent policy changes.

Replace existing policy (Y/n)?

ERROR: (gcloud.projects.set-iam-policy) INVALID_ARGUMENT: Can't set conditional policy on policy type: resourcemanager_projects and id: /lalala

我觉得我误解了角色，策略和服务帐户之间的关系。但是无论如何：是否可以通过这种方式限制服务帐户？

Answer 1

在评论之后，我能够解决我的问题。显然，存储桶权限在某种程度上很特殊，但是我能够使用gsutil在存储桶上设置允许用户访问的策略：

gsutils iam ch serviceAccount:staging-service-account@lalala.iam.gserviceaccount.com:objectCreator gs://lalala-uploads-staging

触发此操作后，访问将按预期进行。我发现这并没有反映在服务帐户政策上，这令人有些困惑：

% gcloud iam service-accounts get-iam-policy staging-service-account@lalala.iam.gserviceaccount.com
etag: ACAB

谢谢大家

将gcloud服务帐户限制为特定存储桶

1 个答案: