Account creation tool in tempest only handles identity v2

[Andrea Frittoli]

The current identity API version is v3, but the account creation tool only handles v2.
Jobs running with the pre-provisioned accounts can work with identity v3, by using v2 credentials in the default domain, but there are limitations. Also this creates an unneeded and unwanted dependency to v2.

[Matthew Treinish (treinish)]

So this is definitely a bug, it's also why I pushed for the tool to just be a shim around tenant isolation and stores the created resources from that in the yaml format. I do not know why it wasn't written that way, but if I were to fix it that's what I would do. The code is mostly duplicative to the tenant isolation allocation pieces anyway so we should probably wipe out the creation pieces and just import from tempest.common.isolated_creds we'll get the v3 support for free in that case too.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/317105

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/317105
Committed: https://git.openstack.org/cgit/openstack/tempest/commit/?id=bd06f981a7fccc911711f95f9318cc01d40c5eef
Submitter: Jenkins
Branch: master

commit bd06f981a7fccc911711f95f9318cc01d40c5eef
Author: Andrea Frittoli (andreaf) <email address hidden>
Date: Thu Jun 2 17:26:51 2016 +0100

    Account generator for identity v3

    Extend account generator to work with identity v3 API and
    credentials. To do so, replace a good chunk of the existing code
    with the credential provisioning APIs of the dynamic credentials
    provider. Add unit test coverage for the tool.

    Depends-on: I9fcb3497387fb32f3e515cda44a1a105921a04c2

    Closes-bug 1494293
    Change-Id: I9970cb29ec4d448a381b4fe293fdfd91d8cfc17a