Msg reduction filtering. Close: ghoneycutt#102

README.md

@@ -213,6 +213,12 @@ Whether a service should be enabled to start at boot. Valid values are true, fal
 
 - *Default*: true
 
+msg_reduction
+-------------
+Filter duplicated messages. Valid values are true and false.
+
+- *Default*: false
+
 is_log_server
 -------------
 Boolean to determine if the system syslog service is meant to receive messages from remote hosts.

manifests/init.pp

@@ -31,6 +31,7 @@
   $daemon                   = 'USE_DEFAULTS',
   $daemon_ensure            = 'running',
   $daemon_enable            = true,
+  $msg_reduction            = false,
   $is_log_server            = false,
   $log_dir                  = '/srv/logs',
   $log_dir_owner            = 'root',
@@ -169,6 +170,13 @@
     }
   }
 
+  if is_string($msg_reduction) == true {
+    $msg_reduction_bool = str2bool($msg_reduction)
+  } else {
+    $msg_reduction_bool = $msg_reduction
+  }
+  validate_bool($msg_reduction_bool)
+
   validate_absolute_path($rsyslog_d_dir)
   validate_re($daemon_ensure, '^(running|stopped)$', "daemon_ensure may be either 'running' or 'stopped' and is set to <${daemon_ensure}>.")
   validate_absolute_path($kernel_target)

spec/classes/init_spec.rb

@@ -570,6 +570,16 @@
           end
           it { should contain_file('rsyslog_config').with_content(/^\$DirCreateMode 0770$/) }
         end
+
+	context 'with msg_reduction=true' do
+          let :params do
+            {
+              :msg_reduction => 'true',
+            }
+          end
+          it { should contain_file('rsyslog_config').with_content(/^# Filter duplicated messages$/) }
+          it { should contain_file('rsyslog_config').with_content(/^\$RepeatedMsgReduction on$/) }
+        end
       end
     end
 

templates/rsyslog.conf.erb

@@ -43,6 +43,11 @@ $template TraditionalFormat,"%timegenerated% %HOSTNAME% %syslogtag%%msg:::drop-l
 <% else -%>
 $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
 
+<% if @msg_reduction_bool.to_s == 'true' -%>
+# Filter duplicated messages
+$RepeatedMsgReduction on
+<% end -%>
+
 # File syncing capability is disabled by default. This feature is usually not required,
 # not useful and an extreme performance hit
 #$ActionFileEnableSync on