无法在azure中使用postgres数据库部署django项目

Question

我知道这可能是个新手的问题，但我被困在这里很长时间了。

在我的azure帐户中，我想在子域中部署django-postgresql项目。所以我做了以下步骤，

• 使用linux资源创建python webapp
• 创建具有相同资源的postgresql服务器(单个服务器)
• 在开发中心中设置CI/CD
• 还在我的项目中设置production.py文件，并在App的production.py中设置这些变量值。
• 我成功地使用azure在postgresql中创建了我的数据库(这是我在这个过程中使用CLI的唯一步骤)
• 然后我打开了我的SSH课程并激活了activated。之后，我运行了python manage.py迁移命令，并获得了以下错误.

  Traceback (most recent call last):
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 219, in ensure_connection
    self.connect()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 200, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/postgresql/base.py", line 187, in get_new_connection
    connection = Database.connect(**conn_params)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/psycopg2/__init__.py", line 127, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not connect to server: Connection refused
        Is the server running on host "localhost" (127.0.0.1) and accepting
        TCP/IP connections on port 5432?
could not connect to server: Cannot assign requested address
        Is the server running on host "localhost" (::1) and accepting
        TCP/IP connections on port 5432?


The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/base.py", line 330, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/base.py", line 371, in execute
    output = self.handle(*args, **options)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/base.py", line 85, in wrapped
    res = handle_func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/core/management/commands/migrate.py", line 92, in handle
    executor = MigrationExecutor(connection, self.migration_progress_callback)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/migrations/executor.py", line 18, in __init__
    self.loader = MigrationLoader(self.connection)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/migrations/loader.py", line 53, in __init__
    self.build_graph()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/migrations/loader.py", line 216, in build_graph
    self.applied_migrations = recorder.applied_migrations()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/migrations/recorder.py", line 77, in applied_migrations
    if self.has_table():
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/migrations/recorder.py", line 55, in has_table
    with self.connection.cursor() as cursor:
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 259, in cursor
    return self._cursor()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 235, in _cursor
    self.ensure_connection()
File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 219, in ensure_connection
    self.connect()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 219, in ensure_connection
    self.connect()
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/base/base.py", line 200, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/utils/asyncio.py", line 26, in inner
    return func(*args, **kwargs)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/django/db/backends/postgresql/base.py", line 187, in get_new_connection
    connection = Database.connect(**conn_params)
  File "/opt/python/3.8.6/lib/python3.8/site-packages/psycopg2/__init__.py", line 127, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: could not connect to server: Connection refused
        Is the server running on host "localhost" (127.0.0.1) and accepting
        TCP/IP connections on port 5432?
could not connect to server: Cannot assign requested address
        Is the server running on host "localhost" (::1) and accepting
        TCP/IP connections on port 5432?

FYI，我不使用码头和蓝色CLI来创建webapp。我只使用azure CLI来创建数据库。

你能帮帮我吗？

谢谢。

Answer 1

由于错误消息，您的应用程序服务无法连接到服务器，以下是您需要检查的内容：

1. 检查是否已经设置了所有所需的应用程序设置，如我的：

1. 检查是否为Allow access to Azure Service服务器的防火墙规则启用Azure数据库中的PostgreSQL：

如果您是新手，您可以先遵循这个教程。

Answer 2

它与多个部署的设置文件相关。很可能您的一个部署设置使用本地postgresql，另一个使用。然后，由于导入错误或其他原因，azure webapp使用本地部署主机(如果不提供本地主机，则为localhost )。