Reproduced with different variable fatal: [localhost -> localhost]: FAILED! => {"changed": false, "failed": true, "msg": "AnsibleUndefinedVariable: \"hostvars['undercloud']\" is undefined"}
Reproduced with different variable fatal: [localhost -> localhost]: FAILED! => {"changed": false, "failed": true, "msg": "AnsibleUndefin edVariable: \"hostvars[ 'undercloud' ]\" is undefined"}