Comment 11 for bug 1887637

Reviewed: https://review.opendev.org/741587
Committed: https://git.openstack.org/cgit/openstack/tripleo-quickstart/commit/?id=8cfedbcf7ef8962d9bdd2c9a4e5683eb68fa620a
Submitter: Zuul
Branch: master

commit 8cfedbcf7ef8962d9bdd2c9a4e5683eb68fa620a
Author: yatinkarel <email address hidden>
Date: Fri Jul 17 12:46:41 2020 +0530

    Use dnf/yum for customizing libvirt nodepool images

    yum is not installed by default in CentOS8 images,
    so use dnf for it and fallback to yum when dnf not
    available.

    Related-Bug: #1887637
    Change-Id: I4ddf957f677ba8cc584a155444b27d43b7d27e5c