rhel6 apache deploy

| Jun 27, 2013 | apache django wsgi

A simple deploy document which covered apache, django project, wsgi, rhel6.

Prerequisites

• change to root

    su -
  

• install httpd

    yum install httpd
  

• start httpd

    chkconfig httpd on
    service httpd start
  

• install mod_wsgi

    yum install mod_wsgi
  

  if successfully installed, run the following command

    find -L /etc/httpd/ -name *wsgi*
  

  OUTPUT:

    /etc/httpd/modules/mod_wsgi.so
    /etc/httpd/conf.d/wsgi.conf
  

• install django, here you must download the related django version manully

    pip install Django==1.5.1
  

  Or:

    pip install Django==1.4.3
  

Basic config

Assume a django project named lwepm

• cp the project to related dirs

    cp lwepm /usr/lib/python2.6/site-packages/
  

• touch a config file for lwepm

    touch /etc/httpd/conf.d/lwepm.conf
  

• review the lwepm.conf

    # Deployment using mod_python
    #
    # Useful documentation:
    # http://docs.djangoproject.com/en/dev/howto/deployment/modpython/
    #
  
    Alias /favicon.ico /usr/lib/python2.6/site-packages/lwepm/static/images/favicon.ico
    # This should be configured as the correct location
    Alias /static/admin /usr/lib/python2.6/site-packages/django/contrib/admin/static/admin/
    Alias /static /usr/lib/python2.6/site-packages/lwepm/static/
  
    # Limit threads forked:
    # http://blog.webfaction.com/tips-to-keep-your-django-mod-python-memory-usage-down
    # prefork MPM
    StartServers 5
    MinSpareServers 5
    MaxSpareServers 10
    MaxClients 256
    MaxRequestsPerChild 0
  
    # Configurations for mod_wsgi
    #WSGIDaemonProcess daemon processes=5 threads=1
    #WSGIProcessGroup daemon
    WSGIScriptAlias / /usr/lib/python2.6/site-packages/lwepm/wsgi.py
    WSGIPassAuthorization On
  
    <Location "/">
        # ======================
        # Handler for mod_python
        # ======================
        #SetHandler python-program
        #PythonHandler django.core.handlers.modpython
        #SetEnv DJANGO_SETTINGS_MODULE tcms.product_settings
        #PythonDebug On
  
        # ====================
        # Handler for mod_wsgi
        # ====================
        SetHandler wsgi-script
  
        #order deny,allow
        #Deny from all
        #Allow from 10.66.65.110
  
        LimitRequestBody 10485760
        AddOutputFilterByType DEFLATE text/html text/plain text/xml text/javascript application/x-javascript text/css
  
        ErrorDocument 401 /static/errors/unauthorized.html
    </Location>
  

• restart the apache server

    service httpd restart
  

• check the result on the browser

• If Error, Debug steps:

    1. check whether the browser go to the apache server. If successful, you can find:
  
        Apache .....
  
    Or
  
        Internal Error 501/500 and so on.
  
    Then you can run the following command to debug:
  
        tail -n 20 /var/log/httpd/error_log
  
    You can get some info in the last lines of the output.
  
    2. if failed or you cannot got the apache server, you should check the url, the linux Network config, iptables, selinux and so on.
  

Tips

• file permission can cause many bugs.

• you should firstly confirm apache server is ok. After you installed&started the apache server, you can get the index.html on browser.

Refer Urls

• django guide for apache deployment

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