Setting up Django Web-app on amazon linux - AWS micro instance

• SSH into your linux AWS system using a command like this: 

chmod 400 ~/pvtkey.pem
ssh -i ~/pvtkey.pem ec2-user@<AWS-instance-public-IP>

• Install Apache httpd server:

sudo yum install httpd
sudo /etc/init.d/httpd start OR service httpd start

sudo chkconfig httpd on

• You can check what is installed with RPM

rpm -qa

• Install Django:

wget https://www.djangoproject.com/m/releases/1.5/Django-1.5.4.tar.gz
tar xzvf Django-1.5.4.tar.gz

cd Django-1.5.4

sudo python setup.py  install

• Install mod_wsgi:

sudo yum install mod_wsgi

• Add a new user for django:

sudo useradd djangouser
su - djangouser

• Edit http.conf file:

sudo vi /etc/httpd/conf/httpd.conf

NameVirtualHost *:80

<VirtualHost *:80>

WSGIDaemonProcess ec2-54-200-XXX-XXX.us-west-2.compute.amazonaws.com user=djangouser group=djangouser processes=5 threads=1

WSGIProcessGroup ec2-54-200-XXX-XXX.us-west-2.compute.amazonaws.com

    DocumentRoot /home/djangouser/web-app

    ServerName ec2-54-200-XXX-XXX.us-west-2.compute.amazonaws.com

    ErrorLog /home/djangouser/web-app/apache/logs/error.log

    CustomLog /home/djangouser/web-app/apache/logs/access.log combined

    WSGIScriptAlias / /home/djangouser/web-app/apache/django.wsgi

    <Directory /home/djangouser/web-app/apache>

        Order deny,allow

        Allow from all

    </Directory>

    <Directory /home/djangouser/web-app/templates>

        Order deny,allow

        Allow from all

    </Directory>

    <Directory /home/djangouser/web-app/bmdata/static>

        Order deny,allow

        Allow from all

    </Directory>

    <Directory /usr/lib/python2.6/site-packages/django/contrib/admin/static/admin/>
        Order deny,allow
        Allow from all
    </Directory>

    LogLevel warn

    Alias /static/admin/ /usr/lib/python2.6/site-packages/django/contrib/admin/static/admin/

    Alias /static/ /home/djangouser/web-app/bmdata/static/

</VirtualHost>

WSGISocketPrefix /home/djangouser/web-app/apache/run/

• Add django.wsgi 

import os, sys
sys.path.append('/home/djangouser/web-app')
os.environ['DJANGO_SETTINGS_MODULE'] = 'BMonitor.settings'
import django.core.handlers.wsgi

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

• Installing python libs for matplotlib and numpy on AWS

sudo yum install  gcc-c++

sudo yum install  gcc-gfortran

sudo yum install python-devel

sudo yum install atlas-sse3-devel

sudo yum install lapack-devel

sudo yum install libpng-devel

sudo yum install freetype-devel

sudo yum install zlib-devel

tar xzvf matplotlib-1.3.1.tar.gz

cd matplotlib-1.3.1

sudo python setup.py build

sudo python setup.py install

References: http://pragmaticstartup.wordpress.com/2011/04/02/non-techie-guide-to-setting-up-django-apache-mysql-on-amazon-ec2/
https://code.google.com/p/modwsgi/wiki/IntegrationWithDjango