• Create a free account at openshift.com
• Install the OpenShift Client Tools (which is a Ruby Gem):

Step 1: Install Ruby
Step 2: Install RubyGems
Step 3: Install Git
Step 4: Install the client tools

(ruby-full installs the gem binary automatically)

sudo apt-get install ruby-full git-core
sudo gem install rhc

rhc setup

Step 1: Login to openshift.redhat.com
Step 2: Generate a Public/Private key pair
Step 3: Create your namespace (aka domain)

For ease of deployment use the pre-built dokuwiki-quickstart repository

• This respository includes most of the deploy scripts that you will need to deploy Dokuwiki into OpenShift so you might as well use it.

https://github.com/openshift/dokuwiki-quickstart

Step 1: Create an empty application
Step 2: Download dokuwiki
Step 3: Push to OpenShift Online

rhc app create dokuwiki php-5.4
cd dokuwiki
git remote add upstream -m master git://github.com/openshift/dokuwiki-quickstart.git
git pull -s recursive -X theirs upstream master
# note that the git pull above can be used later to pull updates to Dokuwiki

To customize Dokuwiki you must modify the git repository and the deploy scripts. This way your application customization will remain persistent accross each deployment.

Step 1: Install and configure Google Authentication
Step 2: Modify the Dokuwiki config files
Step 3: Update the deploy hook script

cd ~/dokuwiki/.openshift
mkdir plugins
cd plugins
wget https://github.com/kettari/authgoogle/archive/master.tar.gz
tar xf master.tar.gz
rm master.tar.gz
mv authgoogle-master authgoogle
cd ~/dokuwiki/.openshift/conf
vi local.php

You can obtain Secure Shell access to your application (Gear) by running the following command:

rhc ssh dokuwiki<code>

The persistent date storage location for your application can be accessed in your deploy scripts by using the following environment variable:
<code>$OPENSHIFT_DATA_DIRs

• OpenShift Origin is the upstream Open Source project for OpenShift.
• This means you can download it and host your own OpenShift cloud!

http://www.openshift.org/

So Cloud Hosting could be the same thing as shared hosting… But Cloud hosting