0

我是 docker 容器的新手，我一直在努力从 Django 应用程序连接到 mssql 数据库并成功为我的 rest API 启动 docker 容器。请耐心等待我提出很长的问题。

这是我的码头文件

FROM ubuntu:19.04
ENV PYTHONUNBUFFERED 1
ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update && apt-get install -y curl apt-transport-https python3 python3-pip python-dev locales
RUN apt-get -y update && apt-get install -y sudo apt-utils gnupg ca-certificates
RUN apt-get update && apt-get install -y git

RUN curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add -
RUN curl https://packages.microsoft.com/config/ubuntu/19.04/prod.list > /etc/apt/sources.list.d/mssql-release.list

RUN apt-get update --fix-missing && ACCEPT_EULA=Y apt-get install -y msodbcsql17
# optional: for bcp and sqlcmd
RUN ACCEPT_EULA=Y apt-get install mssql-tools
RUN echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile
RUN echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc

RUN /bin/bash -c "source ~/.bashrc"
# optional: for unixODBC development headers
RUN apt-get -y update && apt-get install -y unixodbc-dev

#RUN echo "en_US.UTF-8 UTF-8" > /etc/locale.gen
#RUN locale-gen

RUN git clone https://github.com/mushfiq/djmsc.git o ms_demo

WORKDIR ms_demo

RUN mkdir -p logs

RUN pip3 install -U pip

#RUN apt-get update && apt-get install -y uwsgi-plugin-python
#RUN apt-get update && apt-get install -y uwsgi

ENV PATH="/usr/local/lib/python3.7:/usr/local/lib/python3.7/dist-packages:${PATH}"

RUN pip3 install -r requirements.txt --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --trusted-host pypi.org

EXPOSE 8000
CMD ["python3", "manage.py", "runserver", "0.0.0.0:8000"]

我的 requirements.txt 文件看起来像这样

Django==2.1.8
pyodbc==4.0.26
django-mssql==1.8
django-pyodbc==1.1.3
django-pyodbc-azure==2.1.0.0
djangorestframework==3.9.2
docker==3.7.3
docker-compose==1.24.1
pymssql==2.1.4
sqlparse==0.3.0
SQLAlchemy==1.3.0
sql_server.pyodbc

这是我来自 Django 项目的 settings.py 文件的数据库设置

DATABASES = {
'default': {
    'ENGINE': 'sql_server.pyodbc',
    'NAME': 'MyTestDB',
    'USER': '',
    'PASSWORD': '',
    'HOST': 'myMSSQLDBHOST', # Or an IP Address that your DB is hosted on
    'PORT': '',
    'OPTIONS': {
        'provider': 'SQLOLEDB',
        'driver': 'SQL Server Native Client 11.0',
        'isolation_level': 'READ UNCOMMITTED',  # prevent SELECT deadlocks
    },
}

}

docker image build 命令成功后。当我尝试运行图像时，出现以下错误。

> docker run -p 8000:8000 tanzeelbhatti/ms_demo
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7f0f533a18c8>
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/django/core/management/commands/runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "/usr/local/lib/python3.7/dist-packages/django/utils/autoreload.py", line 248, in raise_last_exception
    raise _exception[1]
  File "/usr/local/lib/python3.7/dist-packages/django/core/management/__init__.py", line 337, in execute
    autoreload.check_errors(django.setup)()
  File "/usr/local/lib/python3.7/dist-packages/django/utils/autoreload.py", line 225, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python3.7/dist-packages/django/apps/registry.py", line 112, in populate
    app_config.import_models()
  File "/usr/local/lib/python3.7/dist-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/usr/local/lib/python3.7/dist-packages/django/contrib/auth/models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "/usr/local/lib/python3.7/dist-packages/django/contrib/auth/base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "/usr/local/lib/python3.7/dist-packages/django/db/models/base.py", line 101, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/usr/local/lib/python3.7/dist-packages/django/db/models/base.py", line 305, in add_to_class
    value.contribute_to_class(cls, name)
  File "/usr/local/lib/python3.7/dist-packages/django/db/models/options.py", line 203, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/usr/local/lib/python3.7/dist-packages/django/db/__init__.py", line 33, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/usr/local/lib/python3.7/dist-packages/django/db/utils.py", line 202, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/usr/local/lib/python3.7/dist-packages/django/db/utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "/usr/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/usr/local/lib/python3.7/dist-packages/sql_server/pyodbc/base.py", line 7
    except ImportError, e:
                      ^
SyntaxError: invalid syntax

我不知道如何从这里开始。我无法理解我在哪里做错了。我想构建一个能够连接到服务器上存在的 MSSQL DB 的图像。我正在使用 docker 工具箱在本地 Windows 机器上运行默认的 docker 机器。从我的本地系统，我使用 Windows 身份验证连接到数据库。

4

2 回答 2

0

你的 Django 版本太旧了

Django 1.5 支持 Python 2.6.5 及更高版本。

如果您在 Linux 下并且想要检查您正在使用的 Python 版本，请从命令行运行 python -V。

如果要检查 Django 版本，请打开 Python 控制台并键入

导入 django django.VERSION (2, 0, 0, 'final', 0)

于 2020-05-19T21:39:08.893 回答
0

如果您看起来接近您的错误，则没有迹象表明应用程序无法连接 MSSQL 或与数据库连接相关的任何内容。

  File "/usr/local/lib/python3.7/dist-packages/sql_server/pyodbc/base.py", line 7
    except ImportError, e:
                      ^
SyntaxError: invalid syntax

您的代码中有语法错误。

还将建议使用 alpine 基础 Docker 映像或官方 python 映像，这样就无需努力维护您的应用程序的依赖关系。

你可以看看这里和这里。

于 2019-09-04T05:52:42.003 回答