python - 我的应用程序容器无法访问我的 mysql 容器
问题描述
在所有的网络搜索和没有答案之后,我想在这个平台上问这个问题。我有一个应用程序容器,我尝试与我的数据库容器连接,但由于不知道我的应用程序无法连接的原因。我正在提供它所需的所有相关信息。
这是我的 docker-compose 文件
version: '2'
services:
application: &application
image: gmasmatrix_application:latest
command: /start.sh
volumes:
- .:/app
depends_on:
- db
ports:
- 8000:8000
# cpu_shares: 874
# mem_limit: 1610612736
# mem_reservation: 1610612736
build:
context: ./
dockerfile: ./compose/local/application/Dockerfile
args:
- GMAS_ENV_TYPE=local
db:
image: mysql:5.7.10
environment:
MYSQL_DATABASE: gmas_mkt
MYSQL_ROOT_PASSWORD: pulkit1607
ports:
- '3306:3306'
volumes:
- my-db:/var/lib/mysql
volumes:
my-db:
我还更改了 settings.py 文件中的主机
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'gmas_mkt',
'USER': 'root',
'PASSWORD': 'pulkit1607',
'HOST': 'db',
'PORT': '3306',
}
}
这是我在运行 docker-compose up 文件时遇到的错误
application_1 | Traceback (most recent call last):
application_1 | File "manage.py", line 22, in <module>
application_1 | execute_from_command_line(sys.argv)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 354, in execute_from_command_line
application_1 | utility.execute()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 346, in execute
application_1 | self.fetch_command(subcommand).run_from_argv(self.argv)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 394, in run_from_argv
application_1 | self.execute(*args, **cmd_options)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 444, in execute
application_1 | self.check()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 482, in check
application_1 | include_deployment_checks=include_deployment_checks,
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/checks/registry.py", line 72, in run_checks
application_1 | new_errors = check(app_configs=app_configs)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/core/checks/model_checks.py", line 28, in check_all_models
application_1 | errors.extend(model.check(**kwargs))
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 1205, in check
application_1 | errors.extend(cls._check_fields(**kwargs))
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 1282, in _check_fields
application_1 | errors.extend(field.check(**kwargs))
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 934, in check
application_1 | errors = super(AutoField, self).check(**kwargs)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 207, in check
application_1 | errors.extend(self._check_backend_specific_checks(**kwargs))
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 306, in _check_backend_specific_checks
application_1 | return connection.validation.check_field(self, **kwargs)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/validation.py", line 18, in check_field
application_1 | field_type = field.db_type(connection)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py", line 614, in db_type
application_1 | return connection.data_types[self.get_internal_type()] % data
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/__init__.py", line 36, in __getattr__
application_1 | return getattr(connections[DEFAULT_DB_ALIAS], item)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/utils/functional.py", line 59, in __get__
application_1 | res = instance.__dict__[self.name] = self.func(instance)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 196, in data_types
application_1 | if self.features.supports_microsecond_precision:
application_1 | File "/usr/local/lib/python2.7/site-packages/django/utils/functional.py", line 59, in __get__
application_1 | res = instance.__dict__[self.name] = self.func(instance)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/features.py", line 52, in supports_microsecond_precision
application_1 | return self.connection.mysql_version >= (5, 6, 4) and Database.version_info >= (1, 2, 5)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/utils/functional.py", line 59, in __get__
application_1 | res = instance.__dict__[self.name] = self.func(instance)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 371, in mysql_version
application_1 | with self.temporary_connection():
application_1 | File "/usr/local/lib/python2.7/contextlib.py", line 17, in __enter__
application_1 | return self.gen.next()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 462, in temporary_connection
application_1 | cursor = self.cursor()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 162, in cursor
application_1 | cursor = self.make_debug_cursor(self._cursor())
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 135, in _cursor
application_1 | self.ensure_connection()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 130, in ensure_connection
application_1 | self.connect()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 98, in __exit__
application_1 | six.reraise(dj_exc_type, dj_exc_value, traceback)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 130, in ensure_connection
application_1 | self.connect()
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 119, in connect
application_1 | self.connection = self.get_new_connection(conn_params)
application_1 | File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 276, in get_new_connection
application_1 | conn = Database.connect(**conn_params)
application_1 | File "/usr/local/lib/python2.7/site-packages/MySQLdb/__init__.py", line 84, in Connect
application_1 | return Connection(*args, **kwargs)
application_1 | File "/usr/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 166, in __init__
application_1 | super(Connection, self).__init__(*args, **kwargs2)
application_1 | django.db.utils.OperationalError: (2002, "Can't connect to MySQL server on 'db' (115)")
无法弄清楚我做错了什么。
解决方案
就我而言,我改变了
mysql://root:root@localhost:3307/db
至
mysql://root:root@Gateway ip:3307/test_db
您可以在其中找到它的网关 ip
docker network ls
docker network inspect
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