add tmpfiles.d config - issue#12

manifests/install.pp

@@ -10,5 +10,14 @@ class rsnapshot::install {
     ensure => $rsnapshot::package_ensure,
   }
 
+  # ensure run directory exists (systemd clears /var/run, so rsnapshot can't create PID files after reboot - issue#12)
+  $lockpath   = pick($rsnapshot::lockpath, $rsnapshot::params::config_lockpath, '/var/run/rsnapshot')
+  $tmpfiles_d = '/etc/tmpfiles.d'
+  
+  file { "${tmpfiles_d}/rsnapshot.conf":
+    ensure  => present,
+    content => "D ${lockpath} 0755 root root -",
+  }
+
 }