我有一个Django项目，效果很好。数据库未在存储库中注册。因此，当我从头开始编写docker时，项目找不到与"对应的表；"后台任务"；。。。
在django项目启动时，任务在urls.py por中被引用。
在不事先编辑对此表的代码调用的情况下，启动项目的方法是什么？
码头工人组成：
version: '3'
services:
db:
image: postgres
environment:
- POSTGRES_DB=postgres
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
- POSTGRES_HOST_AUTH_METHOD=trust
ports:
- "5432:5432"
volumes:
- ./postgres-data:/var/lib/postgresql/data
web:
build: .
command: bash -c "
python manage.py runserver 0.0.0.0:8000
& python manage.py migrate
& python manage.py process_tasks"
volumes:
- .:/code
ports:
- "8000:8000"
- "5555:5555"
depends_on:
- db
日志错误：
db_1 | 2020-10-16 11:48:35.090 UTC [32] ERROR: relation "background_task" does not exist at character 24
db_1 | 2020-10-16 11:48:35.090 UTC [32] STATEMENT: SELECT (1) AS "a" FROM "background_task" WHERE "background_task"."verbose_name" = 'zmq_puller' LIMIT 1
db_1 | 2020-10-16 11:48:35.090 UTC [33] ERROR: relation "background_task" does not exist at character 24
db_1 | 2020-10-16 11:48:35.090 UTC [33] STATEMENT: SELECT (1) AS "a" FROM "background_task" WHERE "background_task"."verbose_name" = 'zmq_puller' LIMIT 1
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return self.cursor.execute(sql, params)
web_1 | psycopg2.errors.UndefinedTable: relation "background_task" does not exist
web_1 | LINE 1: SELECT (1) AS "a" FROM "background_task" WHERE "background_t...
web_1 | ^
web_1 |
web_1 |
web_1 | The above exception was the direct cause of the following exception:
web_1 |
web_1 | Traceback (most recent call last):
web_1 | File "/code/manage.py", line 22, in <module>
web_1 | Traceback (most recent call last):
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return self.cursor.execute(sql, params)
web_1 | psycopg2.errors.UndefinedTable: relation "background_task" does not exist
web_1 | LINE 1: SELECT (1) AS "a" FROM "background_task" WHERE "background_t...
web_1 | ^
web_1 |
web_1 |
web_1 | The above exception was the direct cause of the following exception:
web_1 |
web_1 | Traceback (most recent call last):
web_1 | File "/code/manage.py", line 22, in <module>
web_1 | main()
web_1 | File "/code/manage.py", line 18, in main
web_1 | main()
web_1 | File "/code/manage.py", line 18, in main
web_1 | execute_from_command_line(sys.argv)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
web_1 | utility.execute()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 395, in execute
web_1 | self.fetch_command(subcommand).run_from_argv(self.argv)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 330, in run_from_argv
web_1 | self.execute(*args, **cmd_options)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 371, in execute
web_1 | output = self.handle(*args, **options)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 85, in wrapped
web_1 | res = handle_func(*args, **kwargs)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/commands/migrate.py", line 75, in handle
web_1 | self.check(databases=[database])
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 392, in check
web_1 | execute_from_command_line(sys.argv)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
web_1 | all_issues = checks.run_checks(
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/registry.py", line 70, in run_checks
web_1 | new_errors = check(app_configs=app_configs, databases=databases)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/urls.py", line 13, in check_url_config
web_1 | return check_resolver(resolver)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/urls.py", line 23, in check_resolver
web_1 | return check_method()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 408, in check
web_1 | utility.execute()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/__init__.py", line 395, in execute
web_1 | for pattern in self.url_patterns:
web_1 | File "/usr/local/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
web_1 | self.fetch_command(subcommand).run_from_argv(self.argv)res = instance.__dict__[self.name] = self.func(instance)
web_1 |
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 589, in url_patterns
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 330, in run_from_argv
web_1 | self.execute(*args, **cmd_options)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 368, in execute
web_1 | patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
web_1 | res = instance.__dict__[self.name] = self.func(instance)self.check()
web_1 |
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 582, in urlconf_module
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/management/base.py", line 392, in check
web_1 | all_issues = checks.run_checks(
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/registry.py", line 70, in run_checks
web_1 | return import_module(self.urlconf_name)
web_1 | File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
web_1 | new_errors = check(app_configs=app_configs, databases=databases)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/urls.py", line 13, in check_url_config
web_1 | return check_resolver(resolver)return _bootstrap._gcd_import(name[level:], package, level)
web_1 |
web_1 | File "/usr/local/lib/python3.9/site-packages/django/core/checks/urls.py", line 23, in check_resolver
web_1 | File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
web_1 | return check_method()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 408, in check
web_1 | for pattern in self.url_patterns:
web_1 | File "/usr/local/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
web_1 | res = instance.__dict__[self.name] = self.func(instance)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 589, in url_patterns
web_1 | patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/utils/functional.py", line 48, in __get__
web_1 | res = instance.__dict__[self.name] = self.func(instance)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/urls/resolvers.py", line 582, in urlconf_module
web_1 | return import_module(self.urlconf_name)
web_1 | File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
web_1 | File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
web_1 | return _bootstrap._gcd_import(name[level:], package, level)
web_1 | File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
web_1 | File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
web_1 | File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
web_1 | File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
web_1 | File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
web_1 | File "<frozen importlib._bootstrap_external>", line 790, in exec_module
web_1 | File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
web_1 | File "<frozen importlib._bootstrap_external>", line 790, in exec_module
web_1 | File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
web_1 | File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
web_1 | File "/code/drf_accordion/urls.py", line 45, in <module>
web_1 | File "/code/drf_accordion/urls.py", line 45, in <module>
web_1 | if not Task.objects.filter(verbose_name="zmq_puller").exists():
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 809, in exists
web_1 | return self.query.has_results(using=self.db)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/query.py", line 535, in has_results
web_1 | return compiler.has_results()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1126, in has_results
web_1 | return bool(self.execute_sql(SINGLE))
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1156, in execute_sql
web_1 | cursor.execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 98, in execute
web_1 | return super().execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 66, in execute
web_1 | return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
web_1 | return executor(sql, params, many, context)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return self.cursor.execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/utils.py", line 90, in __exit__
web_1 | if not Task.objects.filter(verbose_name="zmq_puller").exists():
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/query.py", line 809, in exists
web_1 | return self.query.has_results(using=self.db)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/query.py", line 535, in has_results
web_1 | raise dj_exc_value.with_traceback(traceback) from exc_value return compiler.has_results()
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1126, in has_results
web_1 |
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return bool(self.execute_sql(SINGLE))
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1156, in execute_sql
web_1 | return self.cursor.execute(sql, params)
web_1 | django.db.utils.ProgrammingError: relation "background_task" does not exist
web_1 | LINE 1: SELECT (1) AS "a" FROM "background_task" WHERE "background_t...
web_1 | ^
web_1 |
web_1 | cursor.execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 98, in execute
web_1 | return super().execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 66, in execute
web_1 | return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
web_1 | return executor(sql, params, many, context)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return self.cursor.execute(sql, params)
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/utils.py", line 90, in __exit__
web_1 | raise dj_exc_value.with_traceback(traceback) from exc_value
web_1 | File "/usr/local/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
web_1 | return self.cursor.execute(sql, params)
web_1 | django.db.utils.ProgrammingError: relation "background_task" does not exist
web_1 | LINE 1: SELECT (1) AS "a" FROM "background_task" WHERE "background_t...
谢谢por-read！
确保已将background_task添加到INSTALLED_APPS：https://github.com/arteria/django-background-tasks/blob/master/docs/index.rst#installation
确保在应用迁移后运行服务器
请尝试更改此。
version: '3'
...
web:
build: .
command: bash -c "
python manage.py runserver 0.0.0.0:8000
& python manage.py migrate
& python manage.py process_tasks"
...
到此。
version: '3'.
...
web:
build: .
command: bash -c "
python manage.py migrate
& python manage.py runserver 0.0.0.0:8000
& python manage.py process_tasks"
...