Create your openshift application (https://github.com/boekkooi/openshift-cartridge-nginx, https://github.com/boekkooi/openshift-cartridge-php):
rhc create-app myapp http://cartreflect-claytondev.rhcloud.com/github/boekkooi/openshift-cartridge-nginx
rhc cartridge add -a myapp http://cartreflect-claytondev.rhcloud.com/reflect?github=boekkooi/openshift-cartridge-php
Now checkout the repo.
Modify .openshift/nginx.conf.erb
to look like this gists 1_nginx.conf.erb
and add .openshift/action_hooks/build
with the content of this gists 2_build
(make sure to do chmod +x) also add .openshift/php-pecl.txt.
with the content of 3_php-pecl.txt
Commit and push and you'r done.