Allow using a different syslog facility for syslog log handler

Change-Id: I4ca96f7ba11401a99bf5827f17066a4f934f1e83

manifests/init.pp

@@ -133,6 +133,10 @@
 #    (optional) Log level. Defaults to 'INFO'. WARNING: Setting this to
 #    DEBUG will let plaintext passwords be logged in the Horizon log file.
 #
+#  [*syslog_facility*]
+#    (optional) Syslog facility used when syslog log hander is enabled.
+#    Defaults to 'local1'.
+#
 #  [*local_settings_template*]
 #    (optional) Location of template to use for local_settings.py generation.
 #    Defaults to 'horizon/local_settings.py.erb'.
@@ -558,6 +562,7 @@ class horizon(
   $dropdown_max_items                  = 30,
   $log_handlers                        = ['file'],
   $log_level                           = 'INFO',
+  $syslog_facility                     = 'local1',
   $help_url                            = 'http://docs.openstack.org',
   $local_settings_template             = 'horizon/local_settings.py.erb',
   $configure_apache                    = true,

releasenotes/notes/syslog_facility-0fee14adc9a7de4f.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    The new ``horizon::syslog_facility`` parameter has been added.

templates/local_settings.py.erb

@@ -755,7 +755,7 @@ LOGGING = {
     <%- if @log_handlers.include?('syslog') -%>
         'syslog': {
             'level': '<%= @log_level %>',
-            'facility': 'local1',
+            'facility': '<%= @syslog_facility %>',
             'class': 'logging.handlers.SysLogHandler',
             'address': '/dev/log',
             'formatter': 'normal',