Description of problem:
The deployment fails in stage 2 (storage was provided as Gluster, with mount options)
Error seen in cockpit console:
[ INFO ] skipping: [localhost]
[ INFO ] TASK [Add glusterfs storage domain]
[ INFO ] TASK [Add iSCSI storage domain]
[ INFO ] TASK [Add FC storage domain]
[ INFO ] TASK [Get storage domain details]
[ INFO ] TASK [Find the appliance OVF]
[ INFO ] TASK [parse OVF]
[ ERROR ] fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: list object has no element 0\n\nThe error appears to have been in '/usr/share/ovirt-hosted-engine-setup/ansible/create_storage_domain.yml': line 111, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n - debug: var=app_ovf\n - name: parse OVF\n ^ here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: list object has no element 0"}

Version-Release number of selected component (if applicable):
ovirt-hosted-engine-setup-2.2.13-1.el7ev.noarch
cockpit-ovirt-dashboard-0.11.17-1.el7ev.noarch

How reproducible:
Tried once

Steps to Reproduce:
1. Using cockpit UI for installation of HE


Actual results:


Expected results:


Additional info:
/var/log/ovirt-hosted-engine-setup/ had no logs to attach/debug