Centos 7 vs 8.

library/centos/roles/basic-setup/defaults/main.yml

@@ -9,14 +9,21 @@ dns1: 208.67.220.220
 dns2: 208.67.222.222
 configure_domain_name_in_interface: False
 
+el_yum_automation: True
+centos7_packages_automation:
+  - yum-cron
+  - yum-plugin-fastestmirror
+
+el_dnf_automation: False
+centos8_packages_automation:
+  - dnf-automatic
+
 centos_packages_to_install:
   - dstat
   - lsof
   - strace
   - traceroute
   - bind-utils
-  - yum-cron
-  - yum-plugin-fastestmirror
   - whois
   - iotop
   - policycoreutils-python

library/centos/roles/basic-setup/tasks/main.yml

@@ -3,6 +3,24 @@
   yum: name={{ centos_packages_to_install }} state={{ centos_pkg_state }}
   tags: [ 'centos', 'bootstrap', 'packages' ]
 
+- name: Install the packages to automate some yum tasks on CentOS 7
+  yum:
+    pkg: '{{ centos7_packages_automation }}'
+    state: present
+  when:
+    - ansible_distribution_file_variety == "RedHat"
+    - ansible_distribution_major_version is version_compare('7', '<=')
+    - el_yum_automation
+
+- name: Install the packages to automate some dnf tasks on CentOS 8
+  yum:
+    pkg: '{{ centos8_packages_automation }}'
+    state: present
+  when:
+    - ansible_distribution_file_variety == "RedHat"
+    - ansible_distribution_major_version is version_compare('8', '>=')
+    - el_dnf_automation
+
 - name: Install the basic packages from the EPEL repository
   yum: name={{ centos_packages_from_epel }} state={{ centos_pkg_state }}
   when: centos_install_epel