在OpenShift可扩展应用程序上运行Django 1.8 [英] Running Django 1.8 on OpenShift scalable app

问题描述

我在使用python 2.7的可扩展OpenShift平台上运行Django（1.8.7）应用程序时遇到问题。由于某种原因，它无法获取环境变量 OPENSHIFT_POSTGRESQL_DB_URL 的信息。这是错误：

  mod_wsgi（pid = 69306）：目标WSGI脚本'/ var / lib / openshift / 5d5 / app-root / runtime / repo / wsgi / application'不能作为Python模块加载。 
 mod_wsgi（pid = 69306）：异常发生处理WSGI脚本'/ var / lib / openshift / 5d5 / app-root / runtime / repo / wsgi / application'。 
追溯（最近的最后一次调用）：
文件/ var / lib / openshift / 5d5 / app-root / runtime / repo / wsgi / application，第21行，< module> 
 application = get_wsgi_application（）
文件/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/ django / core / wsgi.py，第14行，在get_wsgi_application 
 django.setup（）
文件/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site- package / Django-1.8.7-py2.7.egg / django / __ init__.py，第17行，设置
 configure_logging（settings.LOGGING_CONFIG，settings.LOGGING）
文件/ var / lib /openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/conf/__init__.py，第48行，__getattr__ 
自我._setup（name）
文件/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/conf/ __init__.py，第44行，_setup 
 self._wrapped =设置（settings_module）
文件/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages /Django-1.8.7-py2.7.egg/django/conf/__init__.py，第92行，__init__ 
 mod = importlib。 import_module（self.SETTINGS_MODULE）
文件/opt/rh/python27/root/usr/lib64/python2.7/importlib/__init__.py，第37行，import_module 
 __import __（name）
文件/var/lib/openshift/5d5/app-root/runtime/repo/wsgi/bet/controller/settings.py，第59行，< module> 
 url = urlparse.urlparse（os.environ.get（'OPENSHIFT_POSTGRESQL_DB_URL'））
文件/opt/rh/python27/root/usr/lib64/python2.7/urlparse.py，行143，in urlparse 
 tuple = urlsplit（url，scheme，allow_fragments）
文件/opt/rh/python27/root/usr/lib64/python2.7/urlparse.py，第182行， urlsplit 
i = url.find（'：'）
 AttributeError：'NoneType'对象没有属性'find'
  

这是我在以下工作的settings.py中使用该变量的方式：

  import urlparse 
 DATABASES = {} 
如果ON_OPENSHIFT：
 url = urlparse.urlparse（os.environ.get（'OPENSHIFT_POSTGRESQL_DB_URL'）
 
 DATABASES ['default'] = {
'ENGINE'：'django.db.backends.postgresql_psycopg2'，
'NAME'：os.environ ['OPENSHIFT_APP_NAME']，
'USER'：url.username，
'PASSWORD'：url.password，
'HOST'：url.hostnam e，
'PORT'：url.port，
} 
  

是我的应用程序文件：

 ＃！/ usr / bin / env python 
 
 import os 
 import sys 
 
 sys.path.append（os.path.join（os.environ ['OPENSHIFT_REPO_DIR']，'wsgi' 'bet'））
 
 os.environ ['DJANGO_SETTINGS_MODULE'] ='controller.settings'
 virtenv = os.environ ['OPENSHIFT_PYTHON_DIR'] +'/ virtenv /'
 virtualenv = os.path.join（virtenv，'bin / activate_this.py'）
 try：
 execfile（virtualenv，dict（__ file __ = virtualenv））
除了：
从django.core.wsgi导入
 
 import get_wsgi_application 
 application = get_wsgi_application（）
  

如果我通过 rhc ssh bet 登录到我的应用程序，并尝试打印变量，它可以正常工作：

  echo $ OPENSHIFT_POSTGRESQL_DB_URL 
 postgresql：// admin：password-mynick.rhcloud.com：port / 
  p $ p> 
 
 
还有想法，我错过了什么。我没有运气，看看 here 。
 
 
 
注意：我的应用程序名为 bet 。但是，由于我将其移动到可伸缩的应用程序，我在openshift中创建了 abet 应用程序。在 wsgi 文件夹中，我将应用名称保存为 bet 。可能会导致一些问题？
解决方案
嗯，看起来像某种 bug  in  OpenShift 。我试图重新启动/重新加载应用程序，没有运气。
  $ rhc app stop -a appname 
 $ rhc app start -a appname 
  
停止并启动应用程序使其正常工作。 （重载环境变量）
 
I am having problems running Django(1.8.7) app on scalable OpenShift platform using python 2.7. For some reason it can not get info of enviroment variable OPENSHIFT_POSTGRESQL_DB_URL. Well this is the error:
 mod_wsgi (pid=69306): Target WSGI script '/var/lib/openshift/5d5/app-root/runtime/repo/wsgi/application' cannot be loaded as Python module.
 mod_wsgi (pid=69306): Exception occurred processing WSGI script '/var/lib/openshift/5d5/app-root/runtime/repo/wsgi/application'.
 Traceback (most recent call last):
   File "/var/lib/openshift/5d5/app-root/runtime/repo/wsgi/application", line 21, in <module>
     application = get_wsgi_application()
   File "/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/core/wsgi.py", line 14, in get_wsgi_application
     django.setup()
   File "/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/__init__.py", line 17, in setup
     configure_logging(settings.LOGGING_CONFIG, settings.LOGGING)
   File "/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/conf/__init__.py", line 48, in __getattr__
     self._setup(name)
   File "/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/conf/__init__.py", line 44, in _setup
     self._wrapped = Settings(settings_module)
   File "/var/lib/openshift/5d5/python/virtenv/lib/python2.7/site-packages/Django-1.8.7-py2.7.egg/django/conf/__init__.py", line 92, in __init__
     mod = importlib.import_module(self.SETTINGS_MODULE)
   File "/opt/rh/python27/root/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module
     __import__(name)
   File "/var/lib/openshift/5d5/app-root/runtime/repo/wsgi/bet/controller/settings.py", line 59, in <module>
     url = urlparse.urlparse(os.environ.get('OPENSHIFT_POSTGRESQL_DB_URL'))
   File "/opt/rh/python27/root/usr/lib64/python2.7/urlparse.py", line 143, in urlparse
     tuple = urlsplit(url, scheme, allow_fragments)
   File "/opt/rh/python27/root/usr/lib64/python2.7/urlparse.py", line 182, in urlsplit
     i = url.find(':')
 AttributeError: 'NoneType' object has no attribute 'find'
This is how I used that variable in settings.py that worked before:
import urlparse
DATABASES = {}
if ON_OPENSHIFT:
    url = urlparse.urlparse(os.environ.get('OPENSHIFT_POSTGRESQL_DB_URL'))

    DATABASES['default'] = {
        'ENGINE' : 'django.db.backends.postgresql_psycopg2',
        'NAME': os.environ['OPENSHIFT_APP_NAME'],
        'USER': url.username,
        'PASSWORD': url.password,
        'HOST': url.hostname,
        'PORT': url.port,
        }
and this is my application file:
#!/usr/bin/env python

import os
import sys

sys.path.append(os.path.join(os.environ['OPENSHIFT_REPO_DIR'], 'wsgi', 'bet'))

os.environ['DJANGO_SETTINGS_MODULE'] = 'controller.settings'
virtenv = os.environ['OPENSHIFT_PYTHON_DIR'] + '/virtenv/'
virtualenv = os.path.join(virtenv, 'bin/activate_this.py')
try:
    execfile(virtualenv, dict(__file__=virtualenv))
except:
    pass

from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
If I login to my app through rhc ssh bet and try to print variable, it works ok:
echo $OPENSHIFT_POSTGRESQL_DB_URL
postgresql://admin:password-mynick.rhcloud.com:port/
And idea what am I missing. I look here with no luck.

NOTE: My app is named bet. But since I am moving it to scalable app, I created abet app in openshift. I kept name of app as bet in wsgi folder. Might this cause some problems?
解决方案
Well, looks like some kind of bug in OpenShift. I tried to restart/reload app, no luck.
$ rhc app stop -a appname
$ rhc app start -a appname
Stopping and starting app made it work. (Reloaded environment variables)

                        
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