目标 WSGI 脚本 '/opt/python/current/app/ ... /wsgi.py' 不能作为 Python 模块加载

Question

我正在尝试在 aws beanstalk 上部署一个 django 应用程序，但我得到了 500。

我得到了 ImportError，我已经尝试了网络上的所有建议，我想，没有尽头。

来自 aws 服务器日志的跟踪：

-------------------------------------
/var/log/httpd/error_log
-------------------------------------
[Sun Mar 26 02:55:17.126990 2017] [:error] [pid 11381] [remote 127.0.0.1:45055] mod_wsgi (pid=11381): Target WSGI script '/opt/python/current/app/src/kirr/wsgi.py' cannot be loaded as Python module.
[Sun Mar 26 02:55:17.127048 2017] [:error] [pid 11381] [remote 127.0.0.1:45055] mod_wsgi (pid=11381): Exception occurred processing WSGI script '/opt/python/current/app/src/kirr/wsgi.py'.
[Sun Mar 26 02:55:17.127087 2017] [:error] [pid 11381] [remote 127.0.0.1:45055] Traceback (most recent call last):
[Sun Mar 26 02:55:17.127244 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/current/app/src/kirr/wsgi.py", line 7, in <module>
[Sun Mar 26 02:55:17.127252 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     application = get_wsgi_application()
[Sun Mar 26 02:55:17.127347 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/venv/lib/python3.4/site-packages/django/core/wsgi.py", line 13, in get_wsgi_application
[Sun Mar 26 02:55:17.127354 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     django.setup(set_prefix=False)
[Sun Mar 26 02:55:17.127446 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/venv/lib/python3.4/site-packages/django/__init__.py", line 22, in setup
[Sun Mar 26 02:55:17.127453 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
[Sun Mar 26 02:55:17.127584 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/venv/lib/python3.4/site-packages/django/conf/__init__.py", line 53, in __getattr__
[Sun Mar 26 02:55:17.127602 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     self._setup(name)
[Sun Mar 26 02:55:17.127630 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/venv/lib/python3.4/site-packages/django/conf/__init__.py", line 41, in _setup
[Sun Mar 26 02:55:17.127635 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     self._wrapped = Settings(settings_module)
[Sun Mar 26 02:55:17.127655 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/venv/lib/python3.4/site-packages/django/conf/__init__.py", line 97, in __init__
[Sun Mar 26 02:55:17.127659 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     mod = importlib.import_module(self.SETTINGS_MODULE)
[Sun Mar 26 02:55:17.127780 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "/opt/python/run/baselinenv/lib64/python3.4/importlib/__init__.py", line 109, in import_module
[Sun Mar 26 02:55:17.127786 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]     return _bootstrap._gcd_import(name[level:], package, level)
[Sun Mar 26 02:55:17.127802 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
[Sun Mar 26 02:55:17.127818 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
[Sun Mar 26 02:55:17.127831 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2212, in _find_and_load_unlocked
[Sun Mar 26 02:55:17.127843 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
[Sun Mar 26 02:55:17.127854 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
[Sun Mar 26 02:55:17.127865 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
[Sun Mar 26 02:55:17.127881 2017] [:error] [pid 11381] [remote 127.0.0.1:45055]   File "<frozen importlib._bootstrap>", line 2224, in _find_and_load_unlocked
[Sun Mar 26 02:55:17.127902 2017] [:error] [pid 11381] [remote 127.0.0.1:45055] ImportError: No module named 'kirr'

wsgi.py 文件：

import os
from django.core.wsgi import get_wsgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "kirr.settings")
application = get_wsgi_application()

/etc/httpd/conf.d/wsgi.conf：

LoadModule wsgi_module modules/mod_wsgi.so
WSGIPythonHome /opt/python/run/baselinenv
WSGISocketPrefix run/wsgi
WSGIRestrictEmbedded On

<VirtualHost *:80>

Alias /static/ /opt/python/current/app/static/
<Directory /opt/python/current/app/static/>
Order allow,deny
Allow from all
</Directory>


WSGIScriptAlias / /opt/python/current/app/src/kirr/wsgi.py


<Directory /opt/python/current/app/>
  Require all granted
</Directory>

WSGIDaemonProcess wsgi processes=1 threads=15 display-name=%{GROUP} \
  python-path=/opt/python/current/app:/opt/python/run/venv/lib64/python3.4/site-packages:/opt/python/run/venv/lib/python3.4/site-packages user=wsgi group=wsgi \
  home=/opt/python/current/app
WSGIProcessGroup wsgi
</VirtualHost>

LogFormat "%h (%{X-Forwarded-For}i) %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

我的 django 应用中有两个配置文件位于 .elasticbeanstalk 内：

.elasticbeanstalk/**01_Packages.config**:
`packages:
  yum:
    git: []
    mysql-server: []
    mysql: []
    libjpeg-turbo-devel: []
    zlib-devel: []`

.elasticbeanstalk/**02_Python.config**:
`container_commands:
    01_migrate:
            command: "source /opt/python/run/venv/bin/activate && python src/manage.py migrate --noinput"
        leader_only: true
    02_createsu:
        command: "source /opt/python/run/venv/bin/activate && python src/manage.py createsu"
        leader_only: true
    03_collectstatic:
        command: "source /opt/python/run/venv/bin/activate && python src/manage.py collectstatic --noinput"

option_settings:
    "aws:elasticbeanstalk:application:environment":
        DJANGO_SETTINGS_MODULE: “kirr.settings"
        "PYTHONPATH": "/opt/python/current/app/src:$PYTHONPATH"
        "ALLOWED_HOSTS": ".elasticbeanstalk.com"
    "aws:elasticbeanstalk:container:python":
        WSGIPath: src/kirr/wsgi.py
            NumProcesses: 3
            NumThreads: 20
    "aws:elasticbeanstalk:container:python:staticfiles":
        "/static/": "www/static/"

这是我尝试过的：

尝试 1：Some 建议这可能是 python 版本问题。我使用 python 3.4 重新构建了我的 django 应用程序，与 beanstalk 相同，但没有效果。

尝试 2：正如here 所建议的那样，我已经更改了 wsgi 文件的权限。为此，我 ssh 进入 beanstalk (eb ssh)，cd 到目录，然后：

$ sudo chmod a+x wsgi.py

没有效果。

尝试 3，如建议here，我已将 SOLINUX 值更改为禁用：

(venv)[ec2-user@ip-112-31-10-129 src]$ sudo nano /etc/selinux/semanage.conf

有什么想法吗？

Answer 1

所以，显然我将配置文件保存在错误的文件夹中。 .elasticbeanstalk/ 而不是 . ebextensions/。使用后者解决了问题。

如果git不想添加隐藏文件夹，记得强制git-add，如：

git add -f .ebextensions/

Answer 2

试试：

WSGIDaemonProcess wsgi threads=15 display-name=%{GROUP} \
    python-home=/opt/python/run/venv \
    python-path=/opt/python/current/app/src \
    user=wsgi group=wsgi

您的项目父目录的路径不正确。也没有使用首选方法来声明 Python 虚拟环境的位置。

关于后者，请务必阅读文档：

• http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html

另请参阅 Django 文档：

• https://docs.djangoproject.com/en/1.10/howto/deployment/wsgi/modwsgi/

由于你只运行一个 WSGI 应用程序，所以也建议你设置：

WSGIApplicationGroup %{GLOBAL}