Apache not serving my python app

Posted on

Apache not serving my python app – Problems with loading a website are often blamed on the Internet connection, but even the most perfectly set up network cannot help if there is no service to reply at your destination. One of the most popular HTTP servers used for this task is Apache2. Much of Apache’s popularity can be attributed to its easy installation and use, but never the less it is possible to run into problems with even the easiest of the software. If you’ve encountered an issue loading your web page, follow these simple troubleshooting methods outlined in this guide to attempt to get your web server back up and working again. Below are some tips in manage your apache2 server when you find problem about apache-2.2, python, deployment, django, mod-wsgi.

So here’s my apache config:

LoadModule wsgi_module /usr/lib/apache2/modules/mod_wsgi.so

<VirtualHost *:80>
        ServerAdmin marijus.merkevicius@gmail.com
        ServerName 31.220.49.197
        WSGIDaemonProcess ts threads=25
        WSGIProcessGroup ts
        Alias /static /home/email-validator/static
        WSGIScriptAlias / /home/email-validator/index.wsgi

        # Set access permission
        <Directory />
                Allow from all
                Require all granted
        </Directory>

</VirtualHost>

Here’s my index.wsgi:

import os
import sys
import site

# Add the app's directory to the PYTHONPATH
sys.path.append('/home/email-validator')
sys.path.append('/home/email-validator/email_validator')

os.environ['DJANGO_SETTINGS_MODULE'] = 'email_validator.settings'
os.environ['PYTHON_EGG_CACHE'] = '/tmp'

import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()

EDIT:
apache error.log

[Sat Nov 15 12:28:09.374301 2014] [mpm_event:notice] [pid 3827:tid 3074431616] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations
[Sat Nov 15 12:28:09.374426 2014] [core:notice] [pid 3827:tid 3074431616] AH00094: Command line: '/usr/sbin/apache2'
[Sat Nov 15 12:32:45.009711 2014] [mpm_event:notice] [pid 3827:tid 3074431616] AH00491: caught SIGTERM, shutting down
[Sat Nov 15 12:32:46.137115 2014] [so:warn] [pid 4297:tid 3074935424] AH01574: module wsgi_module is already loaded, skipping
[Sat Nov 15 12:32:46.142088 2014] [mpm_event:notice] [pid 4298:tid 3074935424] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations
[Sat Nov 15 12:32:46.142125 2014] [core:notice] [pid 4298:tid 3074935424] AH00094: Command line: '/usr/sbin/apache2'
[Sat Nov 15 12:42:04.023659 2014] [mpm_event:notice] [pid 4298:tid 3074935424] AH00491: caught SIGTERM, shutting down
[Sat Nov 15 12:42:04.248193 2014] [so:warn] [pid 4409:tid 3074857600] AH01574: module wsgi_module is already loaded, skipping
[Sat Nov 15 12:42:04.252825 2014] [mpm_event:notice] [pid 4410:tid 3074857600] AH00489: Apache/2.4.7 (Ubuntu) mod_wsgi/3.4 Python/2.7.6 configured -- resuming normal operations
[Sat Nov 15 12:42:04.252860 2014] [core:notice] [pid 4410:tid 3074857600] AH00094: Command line: '/usr/sbin/apache2'

ifconfig

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:127.0.0.2  P-t-P:127.0.0.2  Bcast:0.0.0.0  Mask:255.255.255.255
          inet6 addr: 2a02:4780:1:1::1:1f88/128 Scope:Global
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          RX packets:20113 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9810 errors:0 dropped:3 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:23659654 (23.6 MB)  TX bytes:917246 (917.2 KB)

venet0:0  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.224.2.128  P-t-P:10.224.2.128  Bcast:10.224.2.128  Mask:255.255.255.255
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1

When I go to http://31.220.49.197 apache doesn’t serve me django app. When I do service apache2 restart everything goes okay What am I doing wrong ? This configuration works on my other applications.

I was facing same problem but fortunately after digging into the apache settings I was able to resolve this.

Here is my apache configure file i.e 000-default.conf which serves default page instead of my app.
Note*: Examples are being shown below with the help of OP apache configuration.

<VirtualHost *:80>
    # The ServerName directive sets the request scheme, hostname and port that
    # the server uses to identify itself. This is used when creating
    # redirection URLs. In the context of virtual hosts, the ServerName
    # specifies what hostname must appear in the request's Host: header to
    # match this virtual host. For the default virtual host (this file) this
    # value is not decisive as it is used as a last resort host regardless.
    # However, you must set it for any further virtual host explicitly.
    #ServerName www.example.com

    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html

    # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
    # error, crit, alert, emerg.
    # It is also possible to configure the loglevel for particular
    # modules, e.g.
    #LogLevel info ssl:warn

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

    # For most configuration files from conf-available/, which are
    # enabled or disabled at a global level, it is possible to
    # include a line for only one particular virtual host. For example the
    # following line enables the CGI configuration for this host only
    # after it has been globally disabled with "a2disconf".
    #Include conf-available/serve-cgi-bin.conf
</VirtualHost>
<VirtualHost *:80>
    ServerAdmin marijus.merkevicius@gmail.com
    ServerName 31.220.49.197
    WSGIDaemonProcess ts threads=25
    WSGIProcessGroup ts
    Alias /static /home/email-validator/static
    WSGIScriptAlias / /home/email-validator/index.wsgi

    # Set access permission
    <Directory />
            Allow from all
            Require all granted
    </Directory>

</VirtualHost>

And after commenting out default virtualhost setting at port 80 resolves my problem though we are still getting same error logs 🙂 .

that means commenting out or removing entire default/first <VirtualHost *:80> section will resolve problem.

I am currently having Ubuntu 14.4 and this problem aroused after upgrading from 12.4.

Leave a Reply

Your email address will not be published.