Fix occasional rsyslog hang on startup

* Workaround for rsyslog/rsyslog#1188

[#149827663](https://www.pivotaltracker.com/story/show/149827663)

Signed-off-by: Rob Day-Reynolds <[email protected]>

Author: Rob Day-Reynolds

bosh-stemcell/spec/support/os_image_shared_examples.rb

@@ -192,6 +192,11 @@
       it { should be_file }
       its(:content) { should match('ModLoad imklog') }
     end
+
+    describe file('/etc/rsyslog.d/avoid-startup-deadlock.conf') do
+      it { should be_file }
+      its(:content) { should match(/global\(processInternalMessages="on"\)/) }
+    end
   end
 
   context 'auditd should be installed but not enabled (stig: V-38628) (stig: V-38631) (stig: V-38632)' do

stemcell_builder/stages/rsyslog_config/apply.sh

@@ -25,6 +25,7 @@ else
 fi
 
 cp $assets_dir/enable-kernel-logging.conf $chroot/etc/rsyslog.d/enable-kernel-logging.conf
+cp $assets_dir/avoid-startup-deadlock.conf $chroot/etc/rsyslog.d/avoid-startup-deadlock.conf
 
 cp -f $assets_dir/rsyslog_50-default.conf $chroot/etc/rsyslog.d/50-default.conf
 

stemcell_builder/stages/rsyslog_config/assets/avoid-startup-deadlock.conf

@@ -0,0 +1,6 @@
+#  avoid-startup-deadlock.conf
+#
+#  This configuration is a workaround for 
+#  https://github.com/rsyslog/rsyslog/issues/1188
+
+global(processInternalMessages="on")