我是一个相对较新的网络开发者。
首先,我在我的VPS(Ubuntu 16.04)上部署了一个静态网站,没有问题,然后我尝试添加一个博客应用程序。
使用PostgreSQL在本地可以正常工作,但我无法使其在我的服务器上运行。 似乎它试图使用我的Unix用户连接到Postgres。
为什么我的服务器会这样做呢?
我确实通过postgres用户创建了数据库和所有者,并匹配了settings.py中的登录信息,我希望psycopg2尝试使用这些登录信息连接到数据库:
Settings.py + python-decouple:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': config ('NAME'),
'USER': config ('USER'),
'PASSWORD': config ('PASSWORD'),
'HOST': 'localhost',
'PORT': '',
}
}
每次尝试运行./manage.py migrate
时,我都会收到这个错误信息:'myportfolio'是我的Unix用户名,数据库用户名不同:
Traceback (most recent call last):
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/postgresql/base.py", line 168, in get_new_connection
connection = Database.connect(**conn_params)
File "/home/myportfolio/lib/python3.5/site-packages/psycopg2/__init__.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: FATAL: password authentication failed for user "myportfolio"
FATAL: password authentication failed for user "myportfolio"
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/home/myportfolio/lib/python3.5/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/home/myportfolio/lib/python3.5/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/myportfolio/lib/python3.5/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/myportfolio/lib/python3.5/site-packages/django/core/management/base.py", line 335, in execute
output = self.handle(*args, **options)
File "/home/myportfolio/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 79, in handle
executor = MigrationExecutor(connection, self.migration_progress_callback)
File "/home/myportfolio/lib/python3.5/site-packages/django/db/migrations/executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "/home/myportfolio/lib/python3.5/site-packages/django/db/migrations/loader.py", line 49, in __init__
self.build_graph()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/migrations/loader.py", line 206, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/migrations/recorder.py", line 61, in applied_migrations
if self.has_table():
File "/home/myportfolio/lib/python3.5/site-packages/django/db/migrations/recorder.py", line 44, in has_table
return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 255, in cursor
return self._cursor()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 232, in _cursor
self.ensure_connection()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/home/myportfolio/lib/python3.5/site-packages/django/db/backends/postgresql/base.py", line 168, in get_new_connection
connection = Database.connect(**conn_params)
File "/home/myportfolio/lib/python3.5/site-packages/psycopg2/__init__.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: FATAL: password authentication failed for user "myportfolio"
FATAL: password authentication failed for user "myportfolio"
我尝试过:
- 删除我的Django代码,重新安装
- 删除/清除PostgreSQL并重新安装
- 修改pg_hba.conf本地信任
曾经我创建了一个名为“myportfolio”的Django超级用户作为我的Unix用户:这可能会有问题吗?
SECRET_KEY= ... NAME=portfolio_db USER=user_portfolio PASSWORD= ... ALLOWED_HOSTS= ... DEBUG=True EMAIL_HOST_PASSWORD= ...
它在本地连接良好,且 django 密钥从一开始就有效,因此 python-decouple 的工作正常。你是说我需要创建一个名为“myportfolio”的 postgres 用户,并授予其对数据库的所有权限吗? 我遵循了一个著名的教程,在其中这两个用户名不同,但它似乎可以正常工作。 - Yannick