Run solar nodes on Centos7 boxes

[Bogdan Dobrelya]

This continues https://bugs.launchpad.net/bugs/1548851.
Solar-devX nodes shall be runable on centos7 vagrant boxes

[Bogdan Dobrelya (bogdando)]

The box I built is here https://atlas.hashicorp.com/bogdando/boxes/solar-master-centos

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/289293

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/289293
Committed: https://git.openstack.org/cgit/openstack/solar/commit/?id=542a359af263f6dc1f16e53beb9f7fb1e4998f95
Submitter: Jenkins
Branch: master

commit 542a359af263f6dc1f16e53beb9f7fb1e4998f95
Author: Bogdan Dobrelya <email address hidden>
Date: Fri Mar 4 15:41:30 2016 +0100

    Add vbox/qemu packer build for centos7

    Rename the cloud_archive task to uca/rdo tasks for ubuntu/centos
    Rename the worker_upstrart task to the worker
    Rework the OSTYPE env var to "when: ansible_os_family"

    TODO
    * PXE (PREPROVISIONED=false) to be working for centos as well
    * pygraphviz for centos7, see also https://bugs.launchpad.net/fuel/+bug/1510884
    * fix ubuntu only compatible examples, for example riak cluster deploy

    Closes-bug: 1553988

    Change-Id: Iab130c3c79b3db99deb14ea50572c073532f4694
    Signed-off-by: Bogdan Dobrelya <email address hidden>