Deletes or registers OpenStack tenant clients and displays client details.
Use the generated key when you configure the ML2 plugin.
This example registers a tenant called RegionOne.
# efa auth client register --name RegionOne –- type OpenStack Successfully registered client. Attribute Value name RegionOne type OPENSTACK ID d6d7340e-7cd0-11ea-b7a6-aaa8d3cb654e