Question

我正在尝试将django 1.3应用程序移植到AppEngine + Google Cloud SQL。但是我在从本地开发django连接到我的cloudSQL实例时遇到了一些问题。

我可以使用dbshell连接到CloudSQL。它显示了浏览器身份验证，我在提示符处被删除。

(ENV)$ SETTINGS_MODE=prod ./manage.py dbshell
Google SQL Client

Type "help" or "?" for help.

Connecting to Google SQL database "my_project:prod1|my_db" on host None.
Using readline for history management.
Loading history file "/Users/user/.googlesql/django_proj#prod1.hist"
sql> SELECT CURRENT_USER();
Execution time: 0.694 seconds
+----------------+
| CURRENT_USER() |
+----------------+
| root@localhost |
+----------------+

我认为dbshell实际上似乎以root用户身份运行很奇怪，即使我的settings.py文件中没有root密码。但它仍然有效。

尝试运行syncdb时失败。

(ENV)$ SETTINGS_MODE=prod ./manage.py syncdb
Traceback (most recent call last):
  File "./manage.py", line 11, in <module>
    execute_manager(settings)
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/base.py", line 220, in execute
    output = self.handle(*args, **options)
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/base.py", line 351, in handle
    return self.handle_noargs(**options)
  File "/usr/local/google_appengine/lib/django-1.3/django/core/management/commands/syncdb.py", line 56, in handle_noargs
    cursor = connection.cursor()
  File "/usr/local/google_appengine/lib/django-1.3/django/db/backends/__init__.py", line 252, in cursor
    cursor = util.CursorWrapper(self._cursor(), self)
  File "/usr/local/google_appengine/google/storage/speckle/python/django/backend/base.py", line 275, in _cursor
    self.connection = Connect(**kwargs)
  File "/usr/local/google_appengine/google/storage/speckle/python/django/backend/base.py", line 200, in Connect
    return driver.connect(**kwargs)
  File "/usr/local/google_appengine/google/storage/speckle/python/api/rdbms_googleapi.py", line 183, in __init__
    super(GoogleApiConnection, self).__init__(*args, **kwargs)
  File "/usr/local/google_appengine/google/storage/speckle/python/api/rdbms.py", line 812, in __init__
    self.OpenConnection()
  File "/usr/local/google_appengine/google/storage/speckle/python/api/rdbms.py", line 835, in OpenConnection
    response = self.MakeRequest('OpenConnection', request)
  File "/usr/local/google_appengine/google/storage/speckle/python/api/rdbms.py", line 946, in MakeRequest
    raise _ToDbApiException(response.sql_exception)
google.storage.speckle.python.api.rdbms.OperationalError: (1045, u"Access denied for user 'my_prod_user'@'localhost' (using password: YES)")

在这种情况下，您可以看到它尝试使用我的真实用户，而不是root用户。它因访问被拒绝而失败。

如果我尝试使用my_prod_user直接连接到云SQL，那就可以了。

$ mysql -h XXX.XXX.XXX.XXX -u my_prod_user -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.5.36 (Google)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> SELECT CURRENT_USER();
+-----------------+
| CURRENT_USER()  |
+-----------------+
| my_prod_user@% |
+-----------------+
1 row in set (0.19 sec)

有没有人碰到这个？

Answer 1

我的问题是我设置settings.py文件的方式。在通过本地计算机访问您的cloudSQL数据库时，您必须使用用户root。此外，本地密码似乎没有任何区别，因为它可能只是使用oAuth令牌来创建连接。

以下是我在本地开发机器上访问CloudSQL的工作设置。

DATABASES = {
  'default': {
    'ENGINE': 'google.appengine.ext.django.backends.rdbms',
    'INSTANCE': 'project-name:instance',
    'NAME': 'my_db',
    'USER': 'root',
   }
 }

这是我以前使用的破碎的。请注意我的内联密码。傻我。

DATABASES = {
  'default': {
    'ENGINE': 'google.appengine.ext.django.backends.rdbms',
    'INSTANCE': 'project-name:instance',
    'NAME': 'my_db',
    'USER': 'my_prod_user',
    'PASSWORD' : 'myVerySecretPassword',
   }
 }

我认为Google讨厌密码。我很高兴我的应用程序中不再需要这些硬编码。

Answer 2

使用Django == 1.10.4，这是我用来连接的设置。注意主机和密码。

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'HOST': 'ip_address',
        'NAME': 'db_name',
        'USER': 'root',
        'PASSWORD': 'password'
    }
}

新命令是：

SETTINGS_MODE=prod python manage.py migrate

无法在Google CloudSQL上运行syncdb

2 个答案: