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使用Docker进行Django迁移时出现“Permission denied”错误

pythondjangodockercelerybeat
4

我正在使用Docker Compose与Django、PostgreSQL和RabbitMQ

一切都顺利进行，即使Django容器已经启动并运行到了我想要进行的makemigrations步骤，但它在django-celery-beat处停止了

Migrations for 'django_celery_beat':
django_1        |   /usr/local/lib/python2.7/site-packages/django_celery_beat/migrations/0005_auto_20190512_1531.py
django_1        |     - Alter field event on solarschedule
django_1        | Traceback (most recent call last):
django_1        |   File "/app/manage.py", line 10, in <module>
django_1        |     execute_from_command_line(sys.argv)
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
django_1        |     utility.execute()
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 356, in execute
django_1        |     self.fetch_command(subcommand).run_from_argv(self.argv)
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 283, in run_from_argv
django_1        |     self.execute(*args, **cmd_options)
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 330, in execute
django_1        |     output = self.handle(*args, **options)
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 193, in handle
django_1        |     self.write_migration_files(changes)
django_1        |   File "/usr/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 232, in write_migration_files
django_1        |     with io.open(writer.path, "w", encoding='utf-8') as fh:
django_1        | IOError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/site-packages/django_celery_beat/migrations/0005_auto_20190512_1531.py

当用户模型在迁移中被写入并且应该从Django自身的AbstractUser继承时，没有任何权限错误被引发。

django_1        | Migrations for 'users':
django_1        |   users/migrations/0001_initial.py
django_1        |     - Create model UserAccount
django_1        |     - Create model Branch
django_1        |     - Create model Organization
django_1        |     - Add field organization to branch
django_1        |     - Add field bills_groups to useraccount
django_1        |     - Add field branch to useraccount
django_1        |     - Add field groups to useraccount
django_1        |     - Add field user_permissions to useraccount

我试图在 Python-2.7 Alpine 中添加 sudo 用户，但实际上我没有成功以 sudo 权限运行此命令。

那么我该怎么办？ 我应该在 Docker 中使用 virtualenv 运行镜像，还是有其他方法可以修复这个问题?

Dockerfile

FROM python:2.7-alpine

ENV PYTHONUNBUFFERED 1
RUN addgroup -S django \
    && adduser -S -G django django

RUN apk update \
  && apk add sudo \
  # psycopg2 dependencies
  && apk add --virtual build-deps gcc python-dev musl-dev \
  && apk add postgresql-dev \
  # CFFI dependencies
  && apk add libffi-dev py-cffi \
  # Translations dependencies
  && apk add gettext \
  # https://docs.djangoproject.com/en/dev/ref/django-admin/#dbshell
  && apk add postgresql-client

# Requirements are installed here to ensure they will be cached.
COPY ./requirements.txt /requirements.txt
RUN pip install --no-cache-dir --default-timeout=100 -r /requirements.txt \
        && rm -rf /requirements

COPY ./compose/testing/django/entrypoint /entrypoint
RUN sed -i 's/\r//' /entrypoint
RUN chmod +x /entrypoint
RUN chown django /entrypoint

COPY ./compose/testing/django/start /start
RUN sed -i 's/\r//' /start
RUN chmod +x /start
RUN chown django /start

COPY . /app

RUN chown -R django /app

USER django

WORKDIR /app

ENTRYPOINT ["/entrypoint"]

docker-compose.yml

version: '3'

volumes:
  production_postgres_data: {}
  production_postgres_data_backups: {}

services:
  django: &django
    build:
      context: .
      dockerfile: ./compose/testing/django/Dockerfile
    image: panel_testing_django
    depends_on:
      - postgres
      - rabbitmq
    env_file:
      - ./.envs/.production/.django
      - ./.envs/.production/.postgres
    command: /start
    ports:
      - "8000"
    expose:
      - "8000"

  postgres:
    build:
      context: .
      dockerfile: ./compose/staging/postgres/Dockerfile
    image: panel_testing_postgres
    env_file:
      - ./.envs/.production/.postgres
    volumes:
      - production_postgres_data:/var/lib/postgresql/data
      - production_postgres_data_backups:/backups
    ports:
     - "5432"

  rabbitmq:
    hostname: rabbit
    image: rabbitmq:3-management
    environment:
      - RABBITMQ_DEFAULT_USER=admin
      - RABBITMQ_DEFAULT_PASS=mypass
    ports:
      - "5672:5672"  
      - "15672:15672"

  celeryworker:
    <<: *django
    image: panel_testing_celeryworker
    command: /start-celeryworker

  celerybeat:
    <<: *django
    image: panel_testing_celerybeat
    command: /start-celerybeat

  flower:
    <<: *django
    image: panel_testing_flower
    ports:
      - "5555:5555"
    command: /start-flower
你能添加你的 Dockerfile 和 docker-compose 文件吗？ - JPG
我已经检查过它们。 - A.Raouf
我已经添加了一个答案，请尝试一下 :) 希望它能解决问题 :) - JPG
1
它试图在/usr/local/lib中的文件上写入，这个文件可能是由root拥有的，但是Dockerfile切换到了django用户，因此它不再具有对该文件的写入权限。为什么将这些迁移文件存储在/usr/local/lib中？这些应该存储在您具有写入访问权限的地方，例如/app文件夹。 - solarc
3个回答
3

今天我遇到了类似的问题。我使用 Docker 创建了一个项目，并尝试第一次运行 makemigrations 命令，但出现了以下错误：

PermissionError: [Errno 13] Permission denied: '/usr/local/lib/python3.7/site-packages/django/contrib/admin/migrations/0004_auto_20190515_1649.py'

我通过运行 makemigrations 并指定应用名称(core 是应用名称)来解决了这个问题，如下所示:

docker-compose run web_app sh -c "python manage.py makemigrations core"
2

我刚刚在docker中使用了virtualenv，并将环境下的site-packages目录的所有权交给了我的用户。

RUN pip install virtualenv && virtualenv -p python /app/venv
RUN /app/venv/bin/pip install -r req.txt
RUN /app/venv/bin/python /app/code/manage.py makemigrations

和 DONE

2
我是在Linux系统下操作的，对于我的情况来说，只需要到存储迁移文件的文件夹中，并给予文件夹本身足够的权限即可。
例如：
chmod . 666
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