Python 3 + Django 1.7 with Openshift

This repository is an enabler to run Django (1.7) applications with Python 3.x on OpenShift.

Prerequisites

You need to have an OpenShift account: if not, create a new one.

Secondly, you need to install and configure rhc tools on your computer:

gem install rhc
rhc setup

Thirdly, you need to create a new OpenShift application with Python 3.x cartridge:

By web interface: new python 3.3 app + git clone

By command line:

mynewapp="newappname"
rhc app create -a $mynewapp -t python-3.3

Add django enabler

Run the following commands to add the current project to the app repository:

cd $mynewapp
git remote add upstream -m master git://github.com/lrivallain/openshift-django1.7-py3.git
git pull -s recursive -X theirs upstream master

Configuration

Django "secret key" is already set for localhost usage. For production/OpenShift cartridge, you'll have to set a new secret one.

Generate a new secret key

Django "secret key" is already set for localhost usage. For production/OpenShift cartridge, you'll have to set a new secret one.

You can use a web service like: Django Secret Key Generator Or by using python command line:

import random
print(''.join([random.choice('abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)') for n in range(60)]))

Push key to the cartridge

When key is generated, you need to set an environment variables on the OpenShift cartridge:

rhc set-env DJANGO_SETTINGS_SECRET_KEY="your-secret-key" -a $mynewapp

Database backend

In $mynewapp/openshift/settings.py, MySQL backend is configured. If you whant to use one, you'll need to have a database cartridge to your app. Examples:

MySQL:

rhc cartridge-add mysql-5.5 -app $mynewapp
rhc cartridge-add phpmyadmin-4 --app $mynewapp

PostgreSQL:

rhc cartridge-add postgresql-9.2 --app $mynewapp

...

Then you may have to adapt settings according to your database backend (with the help of OpenShift 'Using Environment Variables' documentation):

# Database
# https://docs.djangoproject.com/en/1.7/ref/settings/#databases
if ON_OPENSHIFT: # production settings
    DATABASES = {
         'default': { # you can change the backend to any django supported
            'ENGINE':   'django.db.backends.mysql',
            'NAME':     os.environ['OPENSHIFT_APP_NAME'],
            'USER':     os.environ['OPENSHIFT_MYSQL_DB_USERNAME'],
            'PASSWORD': os.environ['OPENSHIFT_MYSQL_DB_PASSWORD'],
            'HOST':     os.environ['OPENSHIFT_MYSQL_DB_HOST'],
            'PORT':     os.environ['OPENSHIFT_MYSQL_DB_PORT'],
         }
    }
...

First push

Simply:

git push

Django super user

After first push, your application do not have a super user (admin). You have to create one:

rhc ssh $mynewapp
source $OPENSHIFT_HOMEDIR/python/virtenv/venv/bin/activate
python "$OPENSHIFT_REPO_DIR"wsgi/manage.py createsuperuser