[DO NOT MERGE] Initial commit of refactor. Still contains old code.

Instead of writing a *.pp file to /tmp, as per https://github.com/openshift/openshift-extras/blob/master/oo-install/workflows/origin_deploy/originator.rb#L488-L505 you will instead write a *.sh file. The contents will look like:

    #!/bin/bash
    ENV_VAR_1=FOO \
    ENV_VAR_2=BAR \
    /path/to/openshift.sh
    exit

Keeping in mind that you will copy this file and openshift.sh to /tmp on the target system. You will then invoke the script:

    host_instance.exec_on_host!('/tmp/<your_file>.sh')