Deploy Turbogears 2.1 on Fedora

(Update: Using Fedora 16)

Install mod_wsgi for apache

yum install mod_wsgi

Edit apache config: (/etc/httpd/conf/httpd.conf)

ServerName hostname:80

Workaround for mod_wsgi 2.x in Fedora, move this line:

Include conf.d/*.conf

… to below these lines:

User apache
Group apache

Add this to the end of the config file: (/etc/httpd/conf.d/wsgi.conf)

<IfModule mod_wsgi.c>
  WSGISocketPrefix /var/run/wsgi
</IfModule>

Using TG2 demo app from the previous post (HelloWorld), create apache config file for this app: (/etc/httpd/conf.d/HelloWorld.conf)

Listen 8080
NameVirtualHost *:8080

<VirtualHost *:8080>

  ServerAdmin webmaster@hostname
  ServerName hostname
  ErrorLog logs/hostname-error_log
  CustomLog logs/hostname-access_log common

  Alias /images/ /var/www/HelloWorld/images/
  Alias /css/ /var/www/HelloWorld/css/
  Alias /javascript/ /var/www/HelloWorld/javascript/

  WSGIDaemonProcess HelloWorld threads=10 processes=3
  WSGIProcessGroup HelloWorld
  WSGIScriptAlias / /var/www/HelloWorld/HelloWorld.wsgi

  <Directory /var/www/HelloWorld>
    Order deny,allow
    Allow from all
  </Directory>

</VirtualHost>

Create directory for static contents (do these as root):

mkdir -p /var/www/HelloWorld/python-eggs

Create wsgi script for apache to launch this app: (/var/www/HelloWorld/HelloWorld.wsgi)

import os, sys, site
appname = 'HelloWorld'
prev_sys_path = list(sys.path)
site.addsitedir('/usr/local/pythonenv/%s/lib/python2.6/site-packages' % appname)
new_sys_path = []
for item in list(sys.path):
    if item not in prev_sys_path:
        new_sys_path.append(item)
        sys.path.remove(item)
sys.path[:0] = new_sys_path
sys.path.append('/usr/local/turbogears/%s' % appname)
from pkg_resources import working_set, Environment
env = Environment('/usr/local/pythonenv/%s' % appname)
env.scan()
distributions, errors = working_set.find_plugins(env)
for dist in distributions:
    working_set.add(dist)
os.environ['PYTHON_EGG_CACHE'] = '/usr/local/turbogears/%s/python-eggs' % appname
from paste.deploy import loadapp
application = loadapp('config:/usr/local/turbogears/%s/production.ini' % appname)

Move TG2 public folder to static contents folder:

cp -r HelloWorld/helloworld/public/* /var/www/HelloWorld
chown -R apache.apache /var/www/HelloWorld

Move TG2 app to application folder:

mkdir -p /usr/local/turbogears
cp -r HelloWorld/ /usr/local/turbogears/

Create production config file of the app:

cd /usr/local/turbogears/HelloWorld
cp development.ini production.ini

Set debug to false: (/usr/local/turbogears/HelloWorld/production.ini)

debug=false

Set permission:

chown -R apache.apache /usr/local/turbogears

Finally, restart apache:

service httpd restart

Now, browse to http://localhost:8080

Turbogears 2.1 on Fedora

This post shows how to install Turbogears2 (TG2) in a Python virtual environment. (Update: Using Fedora 14)

Install required software:

yum install python-setuptools python-virtualenv

PostgreSQL dependencies (needed by PyGreSQL)

yum install gcc postgresql-devel

For MySQL backend, dependencies:

yum install gcc mysql-devel

Install TG2 in virtual env: (as root)

mkdir -p /usr/local/pythonenv
virtualenv --no-site-packages /usr/local/pythonenv/HelloWorld

Activate virtual env:

source /usr/local/pythonenv/HelloWorld/bin/activate

Install PostgreSQL database components: (in virtualenv, as root)

easy_install PyGreSQL
easy_install psycopg2

Install TG2.1: (in virtualenv, as root)

easy_install -i http://www.turbogears.org/2.1/downloads/current/index tg.devtools
easy_install -i http://www.turbogears.org/2.1/downloads/current/index Genshi
easy_install tw.jquery

Start developing TG2 app:

Note: Another way to add dependencies – edit setup.py, add package name to ‘install_requires’ variable. For MySQL, add ‘MySQL-python’

Activate virtualenv first (as regular user – ‘webmaster’)

source /usr/local/pythonenv/HelloWorld/bin/activate

Create TG2 app:

paster quickstart HelloWorld

Install required packages for this new app: (in virtual env, as root)

cd HelloWorld/
python setup.py develop

Make sure to use new PostgreSQL DSN format: (development.ini)

postgresql://username:password@hostname:port/databasename

Populate database (as regular user, refer HelloWorld/helloworld/websetup.py)

paster setup-app development.ini

Launch TG standalone server

paster serve --reload development.ini

… and start coding / debugging at http://localhost:8080

To change default URL address: (development.ini)

[server:main]
host = 192.168.56.101
port = 5000
turbo_gears
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