我完全按照Google cloudsql tutorial的说明操作。但是，当我运行create_tables.py时，我收到以下错误： -
Creating all database tables...
Traceback (most recent call last):
File "create_tables.py", line 23, in <module>
db.create_all()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/flask_sqlalchemy/__init__.py", line 1007, in create_all
self._execute_for_all_tables(app, bind, 'create_all')
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/flask_sqlalchemy/__init__.py", line 999, in _execute_for_all_tables
op(bind=self.get_engine(app, bind), **extra)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/sql/schema.py", line 3934, in create_all
tables=tables)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1928, in _run_visitor
with self._optional_conn_ctx_manager(connection) as conn:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1921, in _optional_conn_ctx_manager
with self.contextual_connect() as conn:
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2112, in contextual_connect
self._wrap_pool_connect(self.pool.connect, None),
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2151, in _wrap_pool_connect
e, dialect, self)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1465, in _handle_dbapi_exception_noconnection
exc_info
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 203, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2147, in _wrap_pool_connect
return fn()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 387, in connect
return _ConnectionFairy._checkout(self)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 766, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 516, in checkout
rec = pool._do_get()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 1138, in _do_get
self._dec_overflow()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 1135, in _do_get
return self._create_connection()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 333, in _create_connection
return _ConnectionRecord(self)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 461, in __init__
self.__connect(first_connect_check=True)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 651, in __connect
connection = pool._invoke_creator(self)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 105, in connect
return dialect.connect(*cargs, **cparams)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 393, in connect
return self.dbapi.connect(*cargs, **cparams)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/__init__.py", line 90, in Connect
return Connection(*args, **kwargs)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/connections.py", line 706, in __init__
self.connect()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/connections.py", line 932, in connect
self._request_authentication()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/connections.py", line 1152, in _request_authentication
auth_packet = self._read_packet()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/connections.py", line 1014, in _read_packet
packet.check_error()
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/connections.py", line 393, in check_error
err.raise_mysql_exception(self._data)
File "/home/hell-raiser/temp/python-docs-samples/appengine/flexible/cloudsql/cloudsql/local/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
raise errorclass(errno, errval)
sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (1044, u"Access denied for user 'root'@'43.224.130.174' to database 'gdtmldb'")
在运行上述命令之前，我将SQLALCHEMY_DATABASE_URI设置为mysql+pymysql://root:"<PASSWD1>"@127.0.0.1:3306/gdtmldb。
我的app.yaml包含： -
runtime: python
env: flex
entrypoint: gunicorn -b :$PORT main:app
runtime_config:
python_version: 3
#[START env]
env_variables:
# Replace user, password, database, and instance connection name with the values obtained
# when configuring your Cloud SQL instance.
SQLALCHEMY_DATABASE_URI: >-
mysql+pymysql://root:<PASSWD1>@/gdtmldb?unix_socket=/cloudsql/greendzine-cloud:asia-east1:gdtmldb
#[END env]
#[START cloudsql_settings]
# Replace project and instance with the values obtained when configuring your
# Cloud SQL instance.
beta_settings:
cloud_sql_instances: greendzine-cloud:asia-east1:gdtmldb
#[END cloudsql_settings]
我的项目名称为greendzine-cloud，数据库名称为gdtmldb。我究竟做错了什么？我尝试将SQLALCHEMY_DATABASE_URI中的主机更改为数据库的IP地址，以及localhost和我的公共IP。