Comment 5 for bug 1861695

So, that's because we dont provide the internal endpoint that you are trying to use.
Use this task and it works:
```yaml
- name: 5GB data volume
  os_volume:
    display_name: foo
    display_description: "bar"
    #interface: internal
    region_name: SGP1
    size: 5
    verify: True
```

I think you should not use the internal endpoint, but the public (which is available).

Still there is a question that I want to solve: why dont we have any internal endpoint there?
I will check