(PUP-11034) Allow systemd static services to be masked

Author: nmaludy

lib/puppet/provider/service/systemd.rb

@@ -45,8 +45,13 @@ def self.instances
   def enabled_insync?(current)
     case cached_enabled?[:output]
     when 'static'
-      Puppet.debug("Unable to enable or disable static service #{@resource[:name]}")
-      return true
+      # masking static services is OK, but enabling/disabling them is not
+      if @resource[:enable] == :mask
+        current == @resource[:enable]
+      else
+        Puppet.debug("Unable to enable or disable static service #{@resource[:name]}")
+        return true
+      end
     when 'indirect'
       Puppet.debug("Service #{@resource[:name]} is in 'indirect' state and cannot be enabled/disabled")
       return true

spec/unit/provider/service/systemd_spec.rb

@@ -467,17 +467,39 @@
     context 'when service state is static' do
       let(:service_state) { 'static' }
 
-      it 'is always enabled_insync even if current value is the same as expected' do
-        expect(provider).to be_enabled_insync(:false)
+      context 'when enable is not mask' do
+        it 'is always enabled_insync even if current value is the same as expected' do
+          expect(provider).to be_enabled_insync(:false)
+        end
+
+        it 'is always enabled_insync even if current value is not the same as expected' do
+          expect(provider).to be_enabled_insync(:true)
+        end
+
+        it 'logs a debug messsage' do
+          expect(Puppet).to receive(:debug).with("Unable to enable or disable static service sshd.service")
+          provider.enabled_insync?(:true)
+        end
       end
 
-      it 'is always enabled_insync even if current value is not the same as expected' do
-        expect(provider).to be_enabled_insync(:true)
-      end
+      context 'when enable is mask' do
+        let(:provider) do
+          provider_class.new(Puppet::Type.type(:service).new(:name => 'sshd.service',
+                                                             :enable => 'mask'))
+        end
 
-      it 'logs a debug messsage' do
-        expect(Puppet).to receive(:debug).with("Unable to enable or disable static service sshd.service")
-        provider.enabled_insync?(:true)
+        it 'is enabled_insync if current value is the same as expected' do
+          expect(provider).to be_enabled_insync(:mask)
+        end
+
+        it 'is not enabled_insync if current value is not the same as expected' do
+          expect(provider).not_to be_enabled_insync(:true)
+        end
+
+        it 'logs no debug messsage' do
+          expect(Puppet).not_to receive(:debug)
+          provider.enabled_insync?(:true)
+        end
       end
     end