More flexible file logging channel options

manifests/logging/channel.pp

@@ -30,16 +30,16 @@
 # @param syslog_facility
 #   The syslog facility to use when logging to a syslog log_type
 define dns::logging::channel (
-  Optional[Stdlib::Absolutepath] $file_path          = undef,
-  Optional[String] $file_size                        = undef,
-  Optional[Integer] $file_versions                   = undef,
-  Enum['file', 'null', 'stderr', 'syslog'] $log_type = undef,
-  Integer[51, 59] $order                             = 51,
-  Optional[Enum['no', 'yes']] $print_category        = undef,
-  Optional[Enum['no', 'yes']] $print_severity        = undef,
-  Optional[Enum['no', 'yes']] $print_time            = undef,
-  Optional[String] $severity                         = undef,
-  Optional[String] $syslog_facility                  = undef,
+  Optional[Stdlib::Absolutepath] $file_path                   = undef,
+  Optional[String] $file_size                                 = undef,
+  Optional[Variant[Enum['unlimited'],Integer]] $file_versions = undef,
+  Enum['file', 'null', 'stderr', 'syslog'] $log_type          = undef,
+  Integer[51, 59] $order                                      = 51,
+  Optional[Enum['no', 'yes']] $print_category                 = undef,
+  Optional[Enum['no', 'yes']] $print_severity                 = undef,
+  Optional[Enum['no', 'yes']] $print_time                     = undef,
+  Optional[String] $severity                                  = undef,
+  Optional[String] $syslog_facility                           = undef,
 ) {
   include dns::logging
 
@@ -55,11 +55,8 @@
     if empty($file_path) {
       fail('dns::logging::channel: "file_path" needs to be set with log type file')
     }
-    if empty($file_size) {
-      fail('dns::logging::channel: "file_size" needs to be set with log type file')
-    }
-    if !$file_versions {
-      fail('dns::logging::channel: "file_versions" needs to be set with log type file')
+    if $file_versions and empty($file_size) {
+      fail('dns::logging::channel: "file_size" needs to be set if "file_version" is set')
     }
   }
 

spec/defines/dns_logging_channel_spec.rb

@@ -154,6 +154,17 @@
         it { is_expected.not_to compile }
       end
 
+      describe 'with log_type = file and file_size and file_version not set' do
+        let(:params) do
+          {
+            'log_type'      => 'file',
+            'file_path'     => '/path/to/file.log',
+          }
+        end
+
+        it { is_expected.to compile.with_all_deps }
+      end
+
       describe 'with log_type = file and file_versions not set' do
         let(:params) do
           {
@@ -163,7 +174,7 @@
           }
         end
 
-        it { is_expected.not_to compile }
+        it { is_expected.to compile.with_all_deps }
       end
 
       describe 'with log_type = syslog and all options set' do

templates/log.channel.conf.erb

@@ -1,6 +1,12 @@
   channel <%= @channel_name %> {
     <%- if @log_type == 'file' -%>
+    <%-   if @file_versions and @file_size -%>
     file "<%= @file_path -%>" versions <%= @file_versions -%> size <%= @file_size -%>;
+    <%-     elsif @file_size -%>
+    file "<%= @file_path -%>" size <%= @file_size -%>;
+    <%-     else -%>
+    file "<%= @file_path -%>";
+    <%-   end -%>
     <%- elsif @log_type == 'null' -%>
     null;
     <%- elsif @log_type == 'stderr' -%>