Debug and fix networkd role to work with cent8

roles/networkd/tasks/packages.yml

@@ -1,8 +1,34 @@
 ---
-- name: Install systemd-networkd
+- name: Install networkd on Fedora
+  when: ansible_distribution == "Fedora"
   become: true
   dnf:
     state: latest
     name:
       - systemd-resolved
       - systemd-networkd
+
+- name: Install networkd on CentOS 7
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "7"
+  become: true
+  yum:
+    state: latest
+    name:
+      - systemd-resolved
+      - systemd-networkd
+
+- name: Install networkd on CentOS 8
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "8"
+  become: true
+  block:
+    - name: Install this super-legitimate and definitely vetted COPR repo
+      shell:
+        creates: /etc/yum.repos.d/_copr:copr.fedorainfracloud.org:fschwarz:systemd-networkd.repo
+        cmd: dnf copr enable fschwarz/systemd-networkd
+        warn: false
+    - name: Install networkd
+      dnf:
+        state: latest
+        name:
+          # This now comes from aforementioned very good COPR repo
+          - systemd-networkd