use dnf instead of yum

roles/copr/base/tasks/main.yml

@@ -29,7 +29,7 @@
   copy: src="yum/copr.repo" dest="/etc/yum.repos.d/copr.repo"
 
 - name: install common copr packages
-  yum: state=present pkg={{ item }}
+  dnf: state=present pkg={{ item }}
   with_items:
   #- "copr-selinux"
   - "system-config-firewall-base"
@@ -38,7 +38,7 @@
   - packages
 
 - name: install dev helper packages
-  yum: state=present pkg={{ item }}
+  dnf: state=present pkg={{ item }}
   with_items:
   - "bash-completion"
   - "screen"
@@ -47,7 +47,7 @@
   - packages
 
 - name: install ethtool
-  yum: state=present pkg=ethtool
+  dnf: state=present pkg=ethtool
   tags:
   - packages
 - name: disable offloading