enable sysstat timer on debian

manifests/common.pp

@@ -45,4 +45,10 @@ class sunetdrive::common {
     require => Package['sysstat'],
     notify  => Service['sysstat'],
   }
+  if $::facts['os']['distro']['id'] == 'Debian' {
+    exec { 'sysstat_systemd_timer':
+      command => 'systemctl enable --now sysstat-collect.timer',
+      unless  => 'systemctl is-enabled --quiet sysstat-collect.timer',
+    }
+  }
 }