remote_logging: add class for remote logging only

When timehost is running on a system that uses an SD card, we want to
limit wear to the local file system and only log remotely.

files/rsyslog.conf

+# NOTE: This file in managed by the timehost::remote_logging class.
+# Only log to the main log server to reduce local media wear.
+*.*                     @loghost.lysator.liu.se

manifests/remote_logging.pp

+# Class for only logging to Lysator's log server.
+# Used to reduce wear to local storage.
+class timehost::remote_logging {
+  package { 'rsyslog':
+    ensure => present,
+  }
+
+  file {'/etc/rsyslog.conf':
+    ensure => present,
+    source => 'puppet:///modules/timehost/rsyslog.conf',
+    owner  => 'root',
+    group  => 'root',
+    mode   => '0644',
+    notify => Service['rsyslogd'],
+  }
+
+  service { 'rsyslogd':
+    ensure => running,
+    enable => true,
+  }
+}