o/

The question in $subject came up in a discussion earlier today and I neither
knew the answer nor was able to discover it by looking at a service catalogs for
a few production deployments I have access to (also, the multi-region feature is
currently broken in DevStack and likely has been for some time). Crucially, in a
"standard" multi-region deployment where there is one Keystone instances and N
Nova/Cinder/Glance/Neutron/... deployments, would I have something like the
below, where there is only one identity endpoint but multiple e.g. compute
endpoints, or would I expect there always to be as many identity endpoints as
there are e.g. compute endpoints?

    {
        "token":
        {
            ...
            "catalog":
            [
                {
                    "endpoints":
                    [
                        {
                            "id": "fb757b386a23430d8f4d636b8b45fa89",
                            "interface": "public",
                            "region_id": "RegionOne",
                            "url": "http://10.0.110.125/identity",
                            "region": "RegionOne"
                        }
                    ],
                    "id": "50c4feff9d6149b898fce20ce23904a3",
                    "type": "identity",
                    "name": "keystone"
                },
                {
                    "endpoints":
                    [
                        {
                            "id": "2ed0cb59adb0415c948f8351b6546d3e",
                            "interface": "public",
                            "region_id": "RegionOne",
                            "url": "http://10.0.110.125/compute/v2.1",
                            "region": "RegionOne"
                        },
                        {
                            "id": "2ed0cb59adb0415c948f8351b6546d3e",
                            "interface": "public",
                            "region_id": "RegionTwo",
                            "url": "http://10.0.112.232/compute/v2.1",
                            "region": "RegionOne"
                        }
                    ],
                    "id": "87322637c5ab4e7b90bea7a8c1eb9525",
                    "type": "compute",
                    "name": "nova"
                },
                ...
            ]
        }
    }

I'm guessing the latter, but I'd like to confirm this.

Stephen