common: use ansible facts to detect KVM VMs

group_vars/all

@@ -64,5 +64,3 @@ racktables_dbpass: chee6iechuz1EghuheiD
 snmp_allowed:
 - 172.23.2.5
 - 172.23.2.6
-
-virtual_machine: true

host_vars/bacon.binary.kitchen

@@ -10,5 +10,3 @@ ntp_peers:
 
 slapd_hostname: ldap1.binary.kitchen
 slapd_role: slave
-
-virtual_machine: false

roles/common/tasks/Debian.yml

@@ -35,9 +35,9 @@
   - vim-nox
   - zsh
 
-- name: Install qemu-agent on VMs
+- name: Install qemu-agent on KVM VMs
   apt: name=qemu-guest-agent
-  when: virtual_machine == true
+  when: ansible_virtualization_role == "guest" and ansible_virtualization_type == "kvm"
 
 - name: Configure misc software
   copy: src={{ item.src }} dest={{ item.dest }}