Comment 1 for bug 1752152

Ouch, good find. https://review.openstack.org/#/c/508345/ could replace the microversion checks via cinderclient if we use the keystoneauth1 Adapter object, but that's not something we can backport to queens and pike.

How terrible would it be if we simply did a find/replace of "https" with "http" in the version URL we're checking here:

https://github.com/openstack/python-cinderclient/blob/3.5.0/cinderclient/client.py#L109

The version document in cinder clearly doesn't require a token, so SSL shouldn't be a requirement either it seems.