keystone APIv2.0 unavailable for admin endpoint under apache

There is a bug https://bugs.launchpad.net/rally/+bug/1379876 that rized during benchmarkin cloud with Rally.

Guys configured keystone + apache by this guide https://mirantis.jira.com/wiki/pages/viewpage.action?spaceKey=OSST&title=Keystone+behind+Apache+on+Ubuntu+MOS+HA

and their cloud has no V2.0 keystone API on admin endpoint in contrast to public endpoint.

curl http://192.168.0.7:5000
{"versions": {"values": [{"status": "stable", "updated": "2013-03-06T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v3+json"}, {"base": "application/xml", "type": "application/vnd.openstack.identity-v3+xml"}], "id": "v3.0", "links": [{"href": "http://192.168.0.7:5000/v3/", "rel": "self"}]}, {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}, {"base": "application/xml", "type": "application/vnd.openstack.identity-v2.0+xml"}], "id": "v2.0", "links": [{"href": "http://192.168.0.7:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/api/openstack-identity-service/2.0/content/", "type": "text/html", "rel": "describedby"}, {"href": "http://docs.openstack.org/api/openstack-identity-service/2.0/identity-dev-guide-2.0.pdf", "type": "application/pdf", "rel": "describedby"}]}]}}

curl http://192.168.0.7:35357
{"versions": {"values": [{"status": "stable", "updated": "2013-03-06T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v3+json"}, {"base": "application/xml", "type": "application/vnd.openstack.identity-v3+xml"}], "id": "v3.0", "links": [{"href": "http://192.168.0.7:35357/v3/", "rel": "self"}]}]}}

But when keystone is started as service (without apache) both v2.0 and v3 API on all endpoints are available.

After debugging the cause was found:

/usr/lib/python2.7/dist-packages/keystone/service.py

@fail_gracefully
def admin_app_factory(global_conf, **local_conf):
    conf = global_conf.copy()
    conf.update(local_conf)
    return wsgi.ComposingRouter(routes.Mapper(),
                                [identity.routers.Admin(),
                                 assignment.routers.Admin(),
                                    token.routers.Router(),
                                    routers.VersionV2('admin'),
                                    routers.Extension()])

should be

@fail_gracefully
def admin_app_factory(global_conf, **local_conf):
    controllers.register_version('v2.0')
    conf = global_conf.copy()
    conf.update(local_conf)
    return wsgi.ComposingRouter(routes.Mapper(),
                                [identity.routers.Admin(),
                                 assignment.routers.Admin(),
                                    token.routers.Router(),
                                    routers.VersionV2('admin'),
                                    routers.Extension()])

INFO:

apt-cache policy keystone

keystone:
  Installed: 1:2014.1.1-fuel5.1~mira10
  Candidate: 1:2014.1.1-fuel5.1~mira10
  Version table:
 *** 1:2014.1.1-fuel5.1~mira10 0
        500 http://10.20.0.2/ubuntu/fuelweb/x86_64/ precise/main amd64 Packages
        100 /var/lib/dpkg/status