Django - Docker - 应用程序默认凭据不可用

Question

我想在 Docker 容器中使用 Google Cloud SDK 和 Django 项目。假设我想使用

from google.cloud import vision
from google.cloud.vision import types

当我使用requirements.txt 文件安装google-cloud 时，出现如下所示的错误。在我没有容器的本地机器上，它可以正常工作。有谁知道我该如何解决这个问题？

django_1 | oauth2client.client.ApplicationDefaultCredentialsError：应用程序默认凭据不可用。他们是 如果在 Google Compute Engine 中运行，则可用。否则，该 必须定义环境变量 GOOGLE_APPLICATION_CREDENTIALS 指向定义凭据的文件。看 https://developers.google.com/accounts/docs/application-default-credentials 了解更多信息。

更新 我在 MacBook 上工作，我在 this website 上找到了这个：

docker run --rm -it -v ~/.config/gcloud:/.config/gcloud google/cloud-sdk

此时我收到如下所示的错误。有什么想法可以解决这个问题吗？

django_1  | Traceback (most recent call last):
django_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
django_1  |     response = get_response(request)
django_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
django_1  |     response = self.process_exception_by_middleware(e, request)
django_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
django_1  |     response = wrapped_callback(request, *callback_args, **callback_kwargs)
django_1  |   File "/usr/local/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
django_1  |     return view_func(*args, **kwargs)
django_1  |   File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py", line 68, in view
django_1  |     return self.dispatch(request, *args, **kwargs)
django_1  |   File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 489, in dispatch
django_1  |     response = self.handle_exception(exc)
django_1  |   File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 449, in handle_exception
django_1  |     self.raise_uncaught_exception(exc)
django_1  |   File "/usr/local/lib/python3.6/site-packages/rest_framework/views.py", line 486, in dispatch
django_1  |     response = handler(request, *args, **kwargs)
django_1  |   File "/code/backend/views.py", line 23, in get
django_1  |     client = vision.ImageAnnotatorClient()
django_1  |   File "/usr/local/lib/python3.6/site-packages/google/cloud/gapic/vision/v1/image_annotator_client.py", line 147, in __init__
django_1  |     ssl_credentials=ssl_credentials)
django_1  |   File "/usr/local/lib/python3.6/site-packages/google/gax/grpc.py", line 106, in create_stub
django_1  |     credentials = _grpc_google_auth.get_default_credentials(scopes)
django_1  |   File "/usr/local/lib/python3.6/site-packages/google/gax/_grpc_google_auth.py", line 62, in get_default_credentials
django_1  |     credentials, _ = google.auth.default(scopes=scopes)
django_1  |   File "/usr/local/lib/python3.6/site-packages/google/auth/_default.py", line 282, in default
django_1  |     raise exceptions.DefaultCredentialsError(_HELP_MESSAGE)
django_1  | google.auth.exceptions.DefaultCredentialsError: Could not automatically determine credentials. Please set GOOGLE_APPLICATION_CREDENTIALS or
django_1  | explicitly create credential and re-run the application. For more
django_1  | information, please see
django_1  | https://developers.google.com/accounts/docs/application-default-credentials.

Answer 1

问题是您将文件夹安装到 / 而不是 /root/ 将检查配置的位置

改变

docker run --rm -it -v ~/.config/gcloud:/.config/gcloud google/cloud-sdk

到

docker run --rm -it -v ~/.config/gcloud:/root/.config/gcloud google/cloud-sdk

如果您使用 docker-compose，请将其添加到特定服务器的 yaml 中

volumes:
  - ~/.config/gcloud:/root/.config/gcloud