Description of problem:
default values of cores and memory should be taken from template in role ovirt-vm-infra

TASK [ovirt-vm-infra : Create VMs] ********************************************************************************************************************************************************************************
task path: /usr/share/ansible/roles/ovirt-vm-infra/tasks/main.yml:15
fatal: [*FILTERED*]: FAILED! => {
    "failed": true, 
    "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'dict object' has no attribute 'cores'\n\nThe error appears to have been in '/usr/share/ansible/roles/ovirt-vm-infra/tasks/main.yml': line 15, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n  - name: Create VMs\n    ^ here\n"
}

second run with defined core wariable:

TASK [ovirt-vm-infra : Create VMs] ********************************************************************************************************************************************************************************
task path: /usr/share/ansible/roles/ovirt-vm-infra/tasks/main.yml:15
fatal: [*FILTERED*]: FAILED! => {
    "failed": true, 
    "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'dict object' has no attribute 'memory'\n\nThe error appears to have been in '/usr/share/ansible/roles/ovirt-vm-infra/tasks/main.yml': line 15, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n  - name: Create VMs\n    ^ here\n"
}


Version-Release number of selected component (if applicable):
ovirt-ansible-roles-1.0.2-1.el7ev.noarch
ansible-2.3.1.0-3.el7.noarch