replace systemd fact with core fact

REFERENCE.md

@@ -537,7 +537,7 @@ Default value: `undef`
 
 Data type: `Variant[Integer[-1],Enum['unlimited'],Pattern[/^(infinity|\d+(:(infinity|\d+))?)$/]]`
 
-Set rabbitmq file ulimit. Defaults to 16384. Only available on systems with systemd
+Set rabbitmq file ulimit. Defaults to 16384. Only available on Linux
 
 Default value: `16384`
 

manifests/config.pp

@@ -220,7 +220,7 @@
     }
   }
 
-  if $facts['systemd'] { # systemd fact provided by systemd module
+  if $facts['kernel'] == 'Linux' {
     systemd::manage_dropin { 'service-90-limits.conf':
       unit                    => "${service_name}.service",
       selinux_ignore_defaults => ($facts['os']['family'] == 'RedHat'),

manifests/init.pp

@@ -170,7 +170,7 @@
 #   set explicitly if using clustering. If you run Pacemaker and you don't want to use RabbitMQ buildin cluster, you can set config_cluster
 #   to 'False' and set 'erlang_cookie'.
 # @param file_limit
-#   Set rabbitmq file ulimit. Defaults to 16384. Only available on systems with systemd
+#   Set rabbitmq file ulimit. Defaults to 16384. Only available on Linux
 # @param oom_score_adj
 #   Set rabbitmq-server process OOM score. Defaults to 0.
 # @param heartbeat

manifests/service.pp

@@ -27,8 +27,5 @@
       hasrestart => true,
       name       => $service_name,
     }
-    if $facts['systemd'] and defined(Class['systemd::systemctl::daemon_reload']) {
-      Class['systemd::systemctl::daemon_reload'] -> Service['rabbitmq-server']
-    }
   }
 }

spec/classes/rabbitmq_spec.rb

@@ -119,7 +119,7 @@
       end
 
       ['infinity', -1, 1234].each do |value|
-        context "with file_limit => '#{value}'", if: os_facts['systemd'] do
+        context "with file_limit => '#{value}'", if: os_facts['kernel'] == 'Linux' do
           let(:params) { { file_limit: value } }
 
           selinux_ignore_defaults = os_facts[:os]['family'] == 'RedHat'
@@ -143,7 +143,7 @@
       end
 
       [-1000, 0, 1000].each do |value|
-        context "with oom_score_adj => '#{value}'", if: os_facts['systemd'] do
+        context "with oom_score_adj => '#{value}'", if: os_facts[:kernel] == 'Linux' do
           let(:params) { { oom_score_adj: value } }
 
           it { is_expected.to contain_systemd__manage_dropin('service-90-limits.conf').with_service_entry({ 'LimitNOFILE' => 16_384, 'OOMScoreAdjust' => value }) }
@@ -160,11 +160,11 @@
         end
       end
 
-      context 'on systems with systemd', if: os_facts['systemd'] do
+      context 'on Linux', if: os_facts[:kernel] == 'Linux' do
         it { is_expected.to contain_systemd__manage_dropin('service-90-limits.conf') }
       end
 
-      context 'on systems without systemd', unless: os_facts['systemd'] do
+      context 'on non-Linux', unless: os_facts[:kernel] == 'Linux' do
         it { is_expected.not_to contain_systemd__manage_dropin('service-90-limits.conf') }
       end
 
@@ -1747,13 +1747,6 @@
         }
       end
 
-      context 'on systems with systemd', if: os_facts[:systemd] do
-        it do
-          is_expected.to contain_service('rabbitmq-server').
-            that_requires('Class[systemd::systemctl::daemon_reload]')
-        end
-      end
-
       describe 'service with ensure stopped' do
         let :params do
           { service_ensure: 'stopped' }