Comment 4 for bug 1403676

Reviewed: https://review.openstack.org/152753
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=8e6dbd01c9924ebecffdc04f74e4f6d042610ed8
Submitter: Jenkins
Branch: master

commit 8e6dbd01c9924ebecffdc04f74e4f6d042610ed8
Author: Kevin Carter <email address hidden>
Date: Sat Feb 14 10:06:50 2015 -0600

    Convert existing roles into galaxy roles

    This change implements the blueprint to convert all roles and plays into
    a more generic setup, following upstream ansible best practices.

    Items Changed:
    * All tasks have tags.
    * All roles use namespaced variables.
    * All redundant tasks within a given play and role have been removed.
    * All of the repetitive plays have been removed in-favor of a more
      simplistic approach. This change duplicates code within the roles but
      ensures that the roles only ever run within their own scope.
    * All roles have been built using an ansible galaxy syntax.
    * The `*requirement.txt` files have been reformatted follow upstream
      Openstack practices.
    * Dynamically generated inventory is now more organized, this should assist
      anyone who may want or need to dive into the JSON blob that is created.
      In the inventory a properties field is used for items that customize containers
      within the inventory.
    * The environment map has been modified to support additional host groups to
      enable the seperation of infrastructure pieces. While the old infra_hosts group
      will still work this change allows for groups to be divided up into seperate
      chunks; eg: deployment of a swift only stack.
    * The LXC logic now exists within the plays.
    * etc/openstack_deploy/user_variables.yml has all password/token
      variables extracted into the separate file
      etc/openstack_deploy/user_secrets.yml in order to allow seperate
      security settings on that file.

    Items Excised:
    * All of the roles have had the LXC logic removed from within them which
      should allow roles to be consumed outside of the `os-ansible-deployment`
      reference architecture.

    Note:
    * the directory rpc_deployment still exists and is presently pointed at plays
      containing a deprecation warning instructing the user to move to the standard
      playbooks directory.
    * While all of the rackspace specific components and variables have been removed
      and or were refactored the repository still relies on an upstream mirror of
      Openstack built python files and container images. This upstream mirror is hosted
      at rackspace at "http://rpc-repo.rackspace.com" though this is
      not locked to and or tied to rackspace specific installations. This repository
      contains all of the needed code to create and/or clone your own mirror.

    DocImpact
    Co-Authored-By: Jesse Pretorius <email address hidden>
    Closes-Bug: #1403676
    Implements: blueprint galaxy-roles
    Change-Id: I03df3328b7655f0cc9e43ba83b02623d038d214e