Add use_journal option for logging configuration

This enables oslo.log to pass logging records to journald.

Change-Id: I1ebe450c74d13a26a44f1e06b9f2e92bd40f4ce6

manifests/logging.pp

@@ -16,6 +16,10 @@
 #    (Optional) Use json for logging.
 #    Defaults to $::os_service_default
 #
+#  [*use_journal*]
+#    (Optional) Use journal for logging.
+#    Defaults to $::os_service_default
+#
 #  [*use_stderr*]
 #    (optional) Use stderr for logging
 #    Defaults to $::os_service_default
@@ -95,6 +99,7 @@
 class gnocchi::logging(
   $use_syslog                    = $::os_service_default,
   $use_json                      = $::os_service_default,
+  $use_journal                   = $::os_service_default,
   $use_stderr                    = $::os_service_default,
   $log_facility                  = $::os_service_default,
   $log_dir                       = '/var/log/gnocchi',
@@ -175,6 +180,7 @@ class gnocchi::logging(
     debug               => $debug_real,
     use_syslog          => $use_syslog_real,
     use_json            => $use_json,
+    use_journal         => $use_journal,
     use_stderr          => $use_stderr_real,
     log_dir             => $log_dir_real,
     syslog_log_facility => $log_facility_real,

releasenotes/notes/add-use_journal-option-for-logging-8c99500f64320163.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Adds the use_journal option for configuring oslo.log. This will enable
+    passing the logs to journald.

spec/classes/gnocchi_logging_spec.rb

@@ -11,6 +11,7 @@ describe 'gnocchi::logging' do
     {
      :use_syslog => true,
      :use_json => true,
+     :use_journal => true,
      :use_stderr => false,
      :log_facility => 'LOG_FOO',
      :log_dir => '/var/log',
@@ -36,6 +37,7 @@ describe 'gnocchi::logging' do
       is_expected.to contain_oslo__log('gnocchi_config').with(
         :use_syslog          => '<SERVICE DEFAULT>',
         :use_json            => '<SERVICE DEFAULT>',
+        :use_journal         => '<SERVICE DEFAULT>',
         :use_stderr          => '<SERVICE DEFAULT>',
         :syslog_log_facility => '<SERVICE DEFAULT>',
         :log_dir             => '/var/log/gnocchi',
@@ -49,6 +51,7 @@ describe 'gnocchi::logging' do
       is_expected.to contain_oslo__log('gnocchi_config').with(
         :use_syslog          => true,
         :use_json            => true,
+        :use_journal         => true,
         :use_stderr          => false,
         :syslog_log_facility => 'LOG_FOO',
         :log_dir             => '/var/log',