I can confirm I am seeing the same failures.
TASK: [Set nova management address (is_metal)] ******************************** fatal: [f96c5805-compute1] => One or more undefined variables: 'dict object' has no attribute u'br-mgmt'
I can confirm I am seeing the same failures.
TASK: [Set nova management address (is_metal)] ******* ******* ******* ******* ****
fatal: [f96c5805-compute1] => One or more undefined variables: 'dict object' has no attribute u'br-mgmt'