Description of problem:
When installing metrics store according to the documentation, the playbook fails on template image upload for not being able to find certain filter. When running the same role (image-template) outside the metrics installation playbook with a simple test playbook, the filter is found and task passes successfully.

Version-Release number of selected component (if applicable):
ovirt-engine-4.3.4.1-0.1.el7.noarch
ovirt-engine-metrics-1.3.1-1.el7ev.noarch
ansible-2.8.0-1.el7ae.noarch
ovirt-ansible-image-template-1.1.10-0.1.master.20190515082200.el7.noarch

How reproducible:
Always

Steps to Reproduce:
1. Prepare configuration files according to the documentation
2. Run the installation script

` ANSIBLE_JINJA2_EXTENSIONS="jinja2.ext.do" ./configure_ovirt_machines_for_metrics.sh --playbook=ovirt-metrics-store-installation.yml --ask-vault-pass `

3. Check that task Image Upload was successful

Actual results:

TASK [oVirt.image-template : Image upload] *************************************************************************
task path: /usr/share/ansible/roles/ovirt.image-template/tasks/main.yml:7
[DEPRECATION WARNING]: evaluating create_openshift_bastion_vm as a bare variable, this behaviour will go away and 
you might need to add |bool to the expression in the future. Also see CONDITIONAL_BARE_VARS configuration toggle.. 
This feature will be removed in version 2.12. Deprecation warnings can be disabled by setting 
deprecation_warnings=False in ansible.cfg.
fatal: [localhost]: FAILED! => {
    "reason": "template error while templating string: no filter named 'ovirtvmipv4'. String: {{ ovirt_vms | ovirtvmipv4 }}"
}


Expected results:

TASK [oVirt.image-template : Image upload] *************************************************************************
task path: /usr/share/ansible/roles/ovirt.image-template/tasks/main.yml:7
statically imported: /usr/share/ansible/roles/ovirt.image-template/tasks/empty.yml
included: /usr/share/ansible/roles/ovirt.image-template/tasks/qcow2_image.yml for localhost

Additional info: