reproducer-quickstart.sh doesn't work with keystone v3

[Sofer Athlan-Guyot]

Hi,

using a plain devstack deployment on one host as the cloud provider, the reproducer script doesn't work.

It forces the usage of keystone v2, (OS_TENANT_NAME required). Even removing that in the reproducer script isn't enough as the os_tenant_name is checked as well inside the play.

The problem is that using that devstack deployment, even when adding ENABLE_IDENTITY_V2=True in local.conf, we get an error:

fatal: [localhost]: FAILED! => {"changed": true, "cmd": "openstack image list --long -f value -c ID --property latest=centos-7-latest", "delta": "0:00:00.732647", "end": "2018-02-20 15:53:34.532231", "msg": "non-zero return code", "rc": 1, "start": "2018-02-20 15:53:33.799584", "stderr": "(http://172.30.0.10/identity/v2.0/tokens): The resource could not be found. (HTTP 404) (Request-ID: req-23232051-26eb-41f8-b7c6-c1a04fcb45aa)", "stderr_lines": ["(http://172.30.0.10/identity/v2.0/tokens): The resource could not be found. (HTTP 404) (Request-ID: req-23232051-26eb-41f8-b7c6-c1a04fcb45aa)"], "stdout": "", "stdout_lines": []}

to reproduce, install devstack, stable/queens branch (optional add the ENABLE_IDENTITY_V2=True in local.conf) get the v2 configuration of demo or alt_demo (admin has just v3 credentials) and run the script.

So v3 should be supported to ease that scenario.