Improve guest addon installation for VirtualBox Guests

roles/autoinstall-virtualbox-guest/tasks/main.yml

@@ -1,6 +1,10 @@
 ---
 # file roles/autoinstall-virtualbox-guest/tasks/main.yml
 
+- name: collect facts about installed packages
+  package_facts:
+    manager: "apt"
+
 - name: install virtualbox guest additions
   block:
     - name: install packages
@@ -8,8 +12,8 @@
         state: present
         name:
           - dkms
-          - virtualbox-guest-x11-hwe
-          - virtualbox-guest-dkms-hwe
+          - '{{ "virtualbox-guest-x11-hwe" if "xserver-xorg-hwe-18.04" in ansible_facts.packages else "virtualbox-guest-x11" }}'
+          - '{{ "virtualbox-guest-dkms-hwe" if "linux-generic-hwe-18.04" in ansible_facts.packages else "virtualbox-guest-dkms" }}'
 
     # TODO: set xineliboutput as frontend
   when: