Install Apache, MySQL and miscellaneous tools
[irakli@django ~]$ sudo yum install httpd-devel mysql mysql-server mysql-client mysql-devel apr-devel
[irakli@django ~]$ sudo yum install openssl mod_ssl crypto-utils
[irakli@django ~]$ sudo yum install libjpeg libpng gcc make autoconf telnet libxslt gettext
[irakli@django ~]$ sudo yum install bind bind-utils bind-devel
[irakli@django ~]$ sudo yum install zlib-devel
[irakli@django ~]$ sudo yum install postfix # I like postfix over sendmail
Make sure your /etc/httpd/conf/httpd.conf includes a line like:\
Include conf.d/*.conf
sudo mkdir /var/www/default
sudo vi /etc/httpd/conf.d/00_default.virtualhost.conf in there enter:\
NameVirtualHost *:80
<VirtualHost *:80>
DocumentRoot /var/www/default
ServerName _default_
ErrorLog logs/default-error_log
CustomLog logs/default-access_log common
</VirtualHost>
sudo vi /var/www/default/index.html\ in there enter your default message for misconfigured hosts:
Default blank page
Upgrading Python
[irakli@django ~]$ python -V
Python 2.4.3
[irakli@django ~]$ cd ~/
[irakli@django ~]$ mkdir src
[irakli@django ~]$ cd src
[irakli@django src]$ wget http://www.python.org/ftp/python/2.6.4/Python-2.6.4.tgz
[irakli@django src]$ tar xzvf Python-2.6.4.tgz
[irakli@django src]$ cd Python-2.6.4
[irakli@django Python-2.6.4]$ ./configure --prefix=/opt/python2.6 --with-threads --enable-shared --with-zlib=/usr/include
[irakli@django Python-2.6.4]$ make
[irakli@django Python-2.6.4]$ sudo make install
[irakli@django Python-2.6.4]$ sudo ln -s /opt/python2.6/lib/libpython2.6.so /usr/lib
[irakli@django Python-2.6.4]$ sudo ln -s /opt/python2.6/lib/libpython2.6.so.1.0 /usr/lib
[irakli@django Python-2.6.4]$ sudo /sbin/ldconfig -v
[irakli@django Python-2.6.4]$ sudo ln -s /opt/python2.6/bin/python /usr/local/python
[irakli@django Python-2.6.4]$ python -V
Python 2.6.4
Troubleshooting: if you still see old version of Python, you need to edit /etc/profile (as root), add the following line:
pathmunge /opt/python2.6/bin/
towards the end of the file, before the line that reads something like:
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC
and re-login to the system, so that new path location is picked up by the system. Then try running "python -V" again.
[irakli@django \~]\$ sudo yum search php # make sure we did not accidentally mess up "yum", which is the biggest threat when upgrading Python version. If you see no errors, you should be fine
Installing Python Extensions
[irakli@django Python-2.6.4]$ cd ..
[irakli@django src]$ wget http://bit.ly/6E0DNN
[irakli@django src]$ sudo su -
[root@django ~]# cd /home/irakli/src/
[root@django src]# chmod u+x setuptools-0.6c11-py2.6.egg
[root@django src]# ./setuptools-0.6c11-py2.6.egg --prefix=/opt/python2.6
[root@django src]# exit
logout
# (For some reason installing MySQL-python .egg binary, we downloaded, did not work. Let's show how to install it from source, if you run into a similar problem):
[irakli@django src]$ wget http://bit.ly/6j4uID
[irakli@django src]$ tar xzf MySQL-python-1.2.3c1.tar.gz
[irakli@django src]$ cd MySQL-python-1.2.3c1
[irakli@django MySQL-python-1.2.3c1]$ python setup.py build
[irakli@django MySQL-python-1.2.3c1]$ sudo python setup.py install
[irakli@django MySQL-python-1.2.3c1]$ cd ..
[irakli@django src]$ python
Python 2.6.4 (r264:75706, Nov 29 2009, 19:51:34)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import MySQLdb
(you should not see any errors, type Ctrl-D to exit)
Install Django
[irakli@django src]$ wget http://www.djangoproject.com/download/1.1.1/tarball/
[irakli@django src]$ tar xzf Django-1.1.1.tar.gz
[irakli@django src]$ cd Django-1.1.1
[irakli@django Django-1.1.1]$ python setup.py build
[irakli@django Django-1.1.1]$ sudo python setup.py install
[irakli@django Django-1.1.1]$ cd ..
[irakli@django src]$ python
Python 2.6.4 (r264:75706, Nov 29 2009, 19:51:34)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> django.VERSION
(1, 1, 1, 'final', 0)
>>> import MySQLdb
Starting a Django Project
Note: for former PHP developers, it's important to understand that Django project not only does not have to, but also should not be in a web-accessible folder. An installatio that has Django project under a DocumentRoot is inherently insecure.
[irakli@django src]$ sudo mkdir -p /opt/web/django
[irakli@django src]$ sudo chown irakli:webmaster -R /opt/web
[irakli@django src]$ sudo chmod -R 775 /opt/web
[irakli@django web]$ cd /opt/web/django
[irakli@django django]$ /opt/python2.6/bin/django-admin.py startproject iproj
[irakli@django django]$ cd iproj
Configure Apache with mod_wsgi
[irakli@django django]$ cd ~/src
[irakli@django src]$ sudo ln -s /opt/python2.6/lib/python2.6.so /opt/python2.6/lib/python2.6/config/
[irakli@django src]$ wget http://modwsgi.googlecode.com/files/mod_wsgi-2.8.tar.gz
[irakli@django src]$ cd mod_wsgi-2.8
[irakli@django mod_wsgi-2.8]$ ./configure --with-python=/usr/local/bin/python
[irakli@django mod_wsgi-2.8]$ make
[irakli@django mod_wsgi-2.8]$ sudo make install
[irakli@django mod_wsgi-2.8]$ cd ~/src
[irakli@django src]$ vi /opt/web/django/iproj.wsgi
import os
import sys
sys.path.append('/opt/web/django')
os.environ['DJANGO_SETTINGS_MODULE'] = 'iproj.settings'
os.environ['PYTHON_EGG_CACHE'] = '/opt/web/django/iproj/.python-eggs'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()
[irakli@django src]$ mkdir /opt/web/django/iproj/.python-eggs
[irakli@django src]$ sudo chmod -R 777 /opt/web/django/iproj/.python-eggs
[irakli@django src]$ mkdir /opt/web/django/iproj/logs
[irakli@django src]$ sudo chown apache:staff -R /opt/web/django/iproj/logs
[irakli@django src]$ sudo chmod -R 775 /opt/web/django/iproj/logs
[irakli@django src]$ sudo vi /etc/httpd/conf.d/yourdomain.com.conf
<VirtualHost *:80>
ServerName yourdomain.com
ErrorLog /opt/web/django/iproj/logs/error_log
CustomLog /opt/web/django/iproj/logs/access_log combined
UseCanonicalName Off
Alias /admin_media /opt/python2.6/lib/python2.6/site-packages/django/contrib/admin/media
Alias /static /opt/web/django/iproj/static
WSGIScriptAlias / /opt/web/django/iproj.wsgi
WSGIDaemonProcess iproj processes=7 threads=1 display-name=%{GROUP}
</VirtualHost>
[irakli@django conf.d]$ sudo /etc/init.d/httpd configtest
Syntax OK
Configure Firewall
sudo vi /etc/sysconfig/iptables-config and make sure following variables are set to "yes":\ IPTABLES_SAVE_ON_STOP="yes"\ IPTABLES_SAVE_ON_RESTART="yes"
Open Web ports:
sudo /sbin/iptables -I INPUT -p tcp -m state --state NEW,ESTABLISHED --dport 80 -j ACCEPT
- sudo /sbin/iptables -I INPUT -p tcp -m state --state NEW,ESTABLISHED --dport 443 -j ACCEPT
- Restart iptables with: 'sudo /sbin/service iptables stop' and: 'sudo /sbin/service iptables start' and make sure rules are still in. Try restarting server, too, to make sure setting picked up.
[irakli@django conf.d]$ sudo /etc/init.d/httpd restart
Open http://yourdomain.com you should see a Django welcome screen.
Add Startup Scripts
These will ensure, your servers will come back up after a server reboot.
- sudo /sbin/chkconfig --add httpd
- sudo /sbin/chkconfig --level 2345 httpd on
sudo /sbin/chkconfig --list httpd
sudo /sbin/chkconfig --add mysqld
- sudo /sbin/chkconfig --level 2345 mysqld on
sudo /sbin/chkconfig --list mysqld
sudo /sbin/chkconfig --add postfix
- sudo /sbin/chkconfig --level 2345 postfix on
- sudo /sbin/chkconfig --list postfix
Have fun writing Django programs!
