获取 IAM 政策

演示如何检索 IAM 政策。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 管理对项目、文件夹和组织的访问权限

代码示例

C++

如需了解如何安装和使用 IAM 客户端库，请参阅 IAM 客户端库。如需了解详情，请参阅 IAM C++ API 参考文档。

如需向 IAM 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

namespace iam = ::google::cloud::iam_admin_v1;
[](std::string const& name) {
  iam::IAMClient client(iam::MakeIAMConnection());
  auto response = client.GetIamPolicy(name);
  if (!response) throw std::move(response).status();
  std::cout << "Policy successfully retrieved: " << response->DebugString()
            << "\n";
}

C#

如需了解如何安装和使用 IAM 客户端库，请参阅 IAM 客户端库。如需了解详情，请参阅 IAM C# API 参考文档。

如需向 IAM 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

using Google.Apis.Auth.OAuth2;
using Google.Apis.CloudResourceManager.v1;
using Google.Apis.CloudResourceManager.v1.Data;

public partial class AccessManager
{
    public static Policy GetPolicy(string projectId)
    {
        var credential = GoogleCredential.GetApplicationDefault()
            .CreateScoped(CloudResourceManagerService.Scope.CloudPlatform);
        var service = new CloudResourceManagerService(
            new CloudResourceManagerService.Initializer
            {
                HttpClientInitializer = credential
            });

        var policy = service.Projects.GetIamPolicy(new GetIamPolicyRequest(),
            projectId).Execute();
        return policy;
    }
}

Java

如需了解如何安装和使用 IAM 客户端库，请参阅 IAM 客户端库。如需了解详情，请参阅 IAM Java API 参考文档。

如需向 IAM 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

import com.google.cloud.resourcemanager.v3.ProjectsClient;
import com.google.iam.admin.v1.ProjectName;
import com.google.iam.v1.GetIamPolicyRequest;
import com.google.iam.v1.Policy;
import java.io.IOException;

public class GetProjectPolicy {
  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace the variables before running the sample.
    // TODO: Replace with your project ID.
    String projectId = "your-project-id";

    getProjectPolicy(projectId);
  }

  // Gets a project's policy.
  public static Policy getProjectPolicy(String projectId) throws IOException {
    // Initialize client that will be used to send requests.
    // This client only needs to be created once, and can be reused for multiple requests.
    try (ProjectsClient projectsClient = ProjectsClient.create()) {
      GetIamPolicyRequest request = GetIamPolicyRequest.newBuilder()
              .setResource(ProjectName.of(projectId).toString())
              .build();
      return projectsClient.getIamPolicy(request);
    }
  }
}

Python

如需了解如何安装和使用 IAM 客户端库，请参阅 IAM 客户端库。如需了解详情，请参阅 IAM Python API 参考文档。

如需向 IAM 进行身份验证，请设置应用默认凭据。 如需了解详情，请参阅为本地开发环境设置身份验证。

def get_policy(project_id: str, version: int = 1) -> dict:
    """Gets IAM policy for a project."""

    credentials = service_account.Credentials.from_service_account_file(
        filename=os.environ["GOOGLE_APPLICATION_CREDENTIALS"],
        scopes=["https://www.googleapis.com/auth/cloud-platform"],
    )
    service = googleapiclient.discovery.build(
        "cloudresourcemanager", "v1", credentials=credentials
    )
    policy = (
        service.projects()
        .getIamPolicy(
            resource=project_id,
            body={"options": {"requestedPolicyVersion": version}},
        )
        .execute()
    )
    print(policy)
    return policy

后续步骤

如需搜索和过滤其他 Google Cloud 产品的代码示例，请参阅 Google Cloud 示例浏览器。