openstack/openstack-ansible-os_nova - openstack-ansible-os_nova - OpenDev: Free Software Needs Free Tools

We are currently not dropping the included config file, which is
preventing nova from being able to resize/migrate from one host to
another. This change simply drops the config file which we already
have under the os_nova role to the correct location.
Change-Id: I2d054f095bc76c821aa7b87f5f2890037260066a
Closes-Bug: #1429188 

Add variables for the following 2 nova.conf vars:
image_cache_manager_interval (default 0)
remove_unused_resized_minimum_age_seconds (default 3600)
Change-Id: Ifa52ab226bfe695b64c32c94dd3ffccf465345a0
Closes-Bug: #1424808 

While testing glance + swift, I noticed that the glance-api.conf and
glance-registry.conf being dropped had incorrect auth_uri /
identity_uri values set. This change updates auth_uri / identity_uri
throughout to point to the correct keystone_service_adminuri /
keystone_service_internalurl variables.
Change-Id: I3cbbfefe7da54b08bb9a55e4a2ca3a8bd786577d
Closes-Bug: 1425099

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 <jesse.pretorius@rackspace.co.uk>
Closes-Bug: #1403676
Implements: blueprint galaxy-roles
Change-Id: I03df3328b7655f0cc9e43ba83b02623d038d214e