After this patch [1], Magnum is no longer the "Container Service", it
became the "Container Infrastructure Management Service". Based on the
decision, this patch proposed to rename Magnum service type from
"container" to "container-infra". The old service type will be
deprecated and eventually not supported.
There is another patch [2] on Magnum server side for the renaming.
This patch should land first, then the server patch.
[1] https://review.openstack.org/#/c/311476/
[2] https://review.openstack.org/#/c/319300/
Change-Id: I55205ff2b304678d2b53bbd4d66403078c6baac8
Closes-Bug: #1584251
e0966ebe60