cannot create a volume under a specific tenant

[Dafna Ron]

I wanted to create a volume for a different tenant by logging in with the keystone admin user and we do not have a --tenant tag in create

I think that since admin user can create a tenanat, a user and assign permissions there is no reason why the same user cannot create an object and assign it to a specific tenant.

Steps to Reproduce:
1. create a volume using admin user

Actual results:

the volume is created only under the admin tenant and we have no way of creating a volume for a specific tenant using the admin user.

Expected results:

we should be able to create a volume for a tenant

[John Griffith (john-griffith)]

I would actually not even go down this path, even making it wishlist. We created transfers to do things like this, and adding the step of creating in the name of other tenants doesn't seem to introduce any significant gain.