Check that chrony service is enabled instead of ntpd

ubuntu/roles/common/tasks/main.yml

@@ -53,6 +53,6 @@
   with_items:
      - haveged
      - vnstat
-     - ntp
+     - chrony
 - name: Ensure that the periodic APT cron task clears out old kernels and does unattended security upgrades
   copy: src=10periodic dest=/etc/apt/apt.conf.d/10periodic backup=yes owner=root group=root mode=0644