We need a swift_standalone play for Juno

[Andy McCrae]

In master the services that are unrequired will be ignored and not run, however in Juno since keystone will setup ALL services/endpoints this will fail when the services don't have the appropriate variables included.

Additionally the rpc-support plays will fail when trying to setup nova/neutron configuration.

This can be avoided by skipping the plays that are not required (rpc-support-api, and keystone-add-all-services.yml) but to facilitate this it would be easiest to create a new play that will skip the non-swift/keystone/infra plays that are not required here.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: juno
Review: https://review.openstack.org/167170

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/167170
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=04c1c176ace1b9052d945bba6d0b6f959e6df044
Submitter: Jenkins
Branch: juno

commit 04c1c176ace1b9052d945bba6d0b6f959e6df044
Author: Andy McCrae <email address hidden>
Date: Mon Mar 23 13:48:18 2015 +0000

    Allow swift stand alone to be installed for Juno

    * Add a new play to do swift_standalone
    * The play removes the unrequired plays and tasks
    * Removes keystone service setup for all services.
    * Removes non keystone/infra/swift plays
    * Removes support plays that setup nova/neutron

    Without this play swift_standalone deploys would fail unless a very
    specific set of plays is run.

    Closes-Bug: 1435350
    Change-Id: I67969ebdbdc91205f78d13a0a61d5b29cd79f0d0