This patch implements an initial set of inventory and playbooks
which results in the successful convergence of a standalone
build of Ironic.
It also adds the rootwrap filters, implement config_template
for all the conf files appropriately and ensures that the sudoers
is implemented in the right order of execution.
All content is based from the head of stable/mitaka on
24 Mar 2016.
Change-Id: I9182951c394a8c52826480aba7bc7e4d437988c5