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python - Google CloudSQLAdmin - 服务帐户没有存储桶所需的权限

问题描述

我正在编写一个 python 函数，它使用服务帐户凭据调用 Google cloudSQLAdmin api 将数据库导出到存储桶。

服务帐号已被授予项目所有者权限，存储桶具有为项目所有者设置的权限。我们的项目已经启用了 sqlAdmin api。

Python代码：

from google.oauth2 import service_account
from googleapiclient.discovery import build
import googleapiclient
import json

def main():
    SCOPES = ['https://www.googleapis.com/auth/sqlservice.admin', 'https://www.googleapis.com/auth/cloud-platform', 'https://www.googleapis.com/auth/devstorage.full_control']
    SERVICE_ACCOUNT_FILE = './creds/service-account-credentials.json'
    PROJECT = "[REDACTED]"
    DB_INSTANCE = "[REDACTED]"
    BUCKET_PATH = "gs://[REDACTED]/[REDACTED].sql"
    DATABASES = [REDACTED]
    BODY = { # Database instance export request.
    "exportContext": { # Database instance export context. # Contains details about the export operation.
      "kind": "sql#exportContext", # This is always sql#exportContext.
      "fileType": "SQL", # The file type for the specified uri.
          # SQL: The file contains SQL statements.
          # CSV: The file contains CSV data.
      "uri": BUCKET_PATH, # The path to the file in Google Cloud Storage where the export will be stored. The URI is in the form gs://bucketName/fileName. If the file already exists, the requests succeeds, but the operation fails. If fileType is SQL and the filename ends with .gz, the contents are compressed.
      "databases": DATABASES,
    },
  }

    credentials = service_account.Credentials.from_service_account_file(SERVICE_ACCOUNT_FILE, scopes=SCOPES)
    sqladmin = googleapiclient.discovery.build('sqladmin', 'v1beta4', credentials=credentials)
    response = sqladmin.instances().export(project=PROJECT, instance=DB_INSTANCE, body=BODY).execute()
    print(json.dumps(response, sort_keys=True, indent=4))

运行此代码会产生以下错误：

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "[REDACTED]/main.py", line 47, in hello_pubsub
    response = sqladmin.instances().export(project=PROJECT, instance=DB_INSTANCE, body=BODY).execute()
  File "/usr/local/lib/python3.7/site-packages/googleapiclient/_helpers.py", line 130, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/googleapiclient/http.py", line 851, in execute
    raise HttpError(resp, content, uri=self.uri)
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://www.googleapis.com/sql/v1beta4/projects/[REDACTED]/instances/[REDACTED]/export?alt=json returned "The service account does not have the required permissions for the bucket.">

我已经在 2 个 GCP 项目中尝试过这个，多个服务帐户具有不同的权限。

相关问题： 将 csv 从云存储导入云 sql 时服务帐户的访问被拒绝（权限问题？） - 此问题是由不正确的权限引起的，此处不应出现这种情况，因为该帐户具有项目所有者权限

标签： pythongoogle-apigoogle-cloud-platformgoogle-oauthgoogle-cloud-sql

解决方案

Google Cloud 使用身份和访问管理系统来管理资源：IAM。

每个 Cloud SQL 实例都使用相应的具有权限的服务帐号。要查找您的 Cloud SQL 服务帐号名称，请访问：

控制台 > SQL > 实例名称 > 服务帐户

使用此服务帐户名称，您可以授予存储桶的访问控制权限，从以下选项中进行选择：Storage Admin、Storage Object Admin、Storage Object Creator、Storage Object Viewer。

遵循最小权限原则，您只需添加：Storage Object Creator，即可导出到 Cloud Storage 存储桶。

文档中包含详细的存储访问角色描述。

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