OP#189 add the services

manifests/main/files.pp

@@ -91,6 +91,12 @@ class prometheus_cd::main::files (
         content  => template('prometheus_cd/prometheus-prune-timer.erb'),
         notify   => Exec['systemd-daemon-reload'],
       }
+      file { $ps_prune_log_file:
+        ensure => file,
+        owner  => 'prometheus',
+        group  => 'prometheus',
+        mode   => '0644',
+      }
     }
 
     if $ps_enable_pruning == false {