Comment 1 for bug 1839718

I checked with libvirt installed by DevStack and the following configuration works for me. Hope this helps.

cloud_management:
  driver: universal
node_discover:
  driver: node_list
  args:
    - ip: 10.16.5.5
      fqdn: node
      libvirt_name: instance-00000023
      auth:
        username: user
        private_key_file: cloud_key
power_managements:
- driver: libvirt
  args:
    connection_uri: qemu+ssh://stack@192.168.5.213/system