Re: [cinder] What is the "official" name for Cinder in the service catalog?

8 Oct 2024


      On Fri, 2024-10-04 at 14:15 +0100, Stephen Finucane wrote:
...
o/
I've proposed a series of patches to "clean up" the service catalog that
DevStack creates in a deployment. Currently, DevStack creates two endpoints for
Cinder: one called 'cinderv3' of type 'volumev3' and another called 'cinder' of
type 'block-storage'. For example:
{
        "services":
        [
            {
                "name": "cinderv3",
                "description": "Cinder Volume Service V3",
                "id": "65460706a9864e71926f13042f526aeb",
                "type": "volumev3",
                "enabled": true,
                "links":
                {
                    "self": "http://10.0.108.50/identity/v3/services/65460706a9864e71926f13042f526aeb"
                }
            },
            {
                "name": "cinder",
                "description": "Cinder Volume Service",
                "id": "cd406a0e296d47dca1e481e992851bb2",
                "type": "block-storage",
                "enabled": true,
                "links":
                {
                    "self": "http://10.0.108.50/identity/v3/services/cd406a0e296d47dca1e481e992851bb2"
                }
            },
            // ...
        ],
        "links":
        {
            "next": null,
            "self": "http://10.0.108.50/identity/v3/services",
            "previous": null
        }
    }
They both ultimately point to the same API, the Cinder v3 API, meaning one of
these endpoints is redundant. My assumption was 'block-storage' was the correct
one, since that's the official service type [1], and that 'cinder' was the
appropriate name since it mirrors what we use for other services (nova, neutron,
keystone, glance, ...). However, tkajinam raised the point [2] that the Install
Guide currently recommends use of the 'volumev3' type and that projects like
Nova and Glance have an '[cinder] catalog_info' that defaults to 'volumev3'. If
so, is 'block-storage' really the official service type, or is it 'volumev3'. If
it is, should we be changing the Install Guide and the various config option
defaults?
Thanks for all the feedback on this. It sounds like 'block-storage' and 'cinder'
are the correct service type and name, respectively. I have proposed additional
patches to update the Cinder Install Guide, which start here [1].

Thanks,
Stephen

[1] https://review.opendev.org/c/openstack/cinder/+/931699
...
Cheers,
Stephen
[1] https://specs.openstack.org/openstack/service-types-authority/