[test] Reenable install_munge_folders_created check

Among the original three folders checked, this commit removes the check on `/var/run/munge`. `/var/run` content changes across reboots. The check was successful on validate phase because there was no reboot between validate phase and build phase. The check fails on test phase because build and test are running on different instances

Signed-off-by: Hanwen <[email protected]>

Author: hanwen-cluster

cookbooks/aws-parallelcluster-slurm/test/controls/munge_spec.rb

@@ -35,25 +35,19 @@
   end
 end unless os_properties.redhat_on_docker?
 
-# FIXME: Re-enabled the following check and fix failures
-# control 'tag:install_munge_folders_created' do
-#   title 'Munge folder have been created'
-#
-#   describe file('/var/log/munge') do
-#     it { should exist }
-#     it { should be_directory }
-#   end
-#
-#   describe file('/etc/munge') do
-#     it { should exist }
-#     it { should be_directory }
-#   end
-#
-#   describe file('/var/run/munge') do
-#     it { should exist }
-#     it { should be_directory }
-#   end
-# end unless os_properties.redhat_on_docker?
+control 'tag:install_munge_folders_created' do
+  title 'Munge folder have been created'
+
+  describe file('/var/log/munge') do
+    it { should exist }
+    it { should be_directory }
+  end
+
+  describe file('/etc/munge') do
+    it { should exist }
+    it { should be_directory }
+  end
+end unless os_properties.redhat_on_docker?
 
 control 'tag:config_munge_service_enabled' do
   only_if { node['cluster']['scheduler'] == 'slurm' && !os_properties.redhat_on_docker? }