1. prerequirements: installed and configured OpenNebula [see 1] and Apache2
   
2. download SimpleSAMLphp at: http://simplesamlphp.org/download
3. unpack SimpleSAMLphp:
   
   # mv simplesamlphp-1.9.2.tar.gz /var/www/
# cd /var/www/
# tar -xvzf simplesamlphp-1.9.2.tar.gz
# mv simplesamlphp-1.9.2 simplesamlphp

4. configure SimpleSAMLphp [see 2]
5. download getSession and attributeValueChooser modules
6. unpack the compressed files
   
   # tar -xvzf getSession.tgz attributeValueChooser.tgz
7. install modules for SimpleSAMLphp:
   
   # cp -r attributeValueChooser /var/www/simplesamlphp/modules
# cp -r getSession /var/www/simplesamlphp/modules
8. add this to Apache2 configuration:
   
   Alias /simplesaml /var/www/simplesamlphp/www

ProxyPass /simplesaml !
ProxyPass /one/ http://localhost:9869/
ProxyPassReverse /one/ http://localhost:9869/
9. enable some Apache2 modules:
   
   # a2enmod proxy_http
10. restart Apache2:
    
    # service apache2 restart
11. download and install SimpleSAMLphp OpenNebula Connector:
    
    # tar -xvzf opennebula_ssp.tar.gz
# cd opennebula_ssp
# chmod +x install.sh
# ./install.sh
12. restart OpenNebula and Sunstone (as oneadmin):
    
    $ sunstone-server stop
$ one stop
$ one start
$ sunstone-server start
13. OpenNebula Sunstone is now at: http://localhost/one/

Method 2

You can patch the originial OpenNebula tarball too:

1. download OpenNebula tarball at: http://downloads.opennebula.org/
2. unpack it:
   
   $ tar -xvzf opennebula-3.8.1.tar.gz
3. download the patch and apply for the source:
   
   $ cd opennebula-3.8.1
$ patch -p1 ../ < ssp_for_opennebula.patch
4. now you can install OpenNebula with the original install script (install.sh). SimpleSAMLphp and the modules for it is still needed for proper functioning.
   

Useful links:

• [1] OpenNebula documentation
  
• [2] SimpleSAMLphp documentation