Allow vhost socket directory user/group as configurable from template

For ovs2.8 version, it is required to modify the vhost socket directory
permissions as openvswitch:hugetlbfs instead of the earlier hardcoded
values qemu:qemu. Making these values as input which could be configured
from templates.

Change-Id: Ia2d0a49567f51b8e6ecdf1967c515ef0dfe81567

manifests/profile/base/neutron/ovs.pp

@@ -27,10 +27,20 @@
 #   (Optional) vhostuser socket dir, The directory where $vhostuser_socket_dir
 #   will be created with correct permissions, inorder to support vhostuser
 #   client mode.
+#
+# [*vhostuser_socket_group*]
+#   (Optional) Group name for vhostuser socket dir.
+#   Defaults to qemu
+#
+# [*vhostuser_socket_user*]
+#   (Optional) User name for vhostuser socket dir.
+#   Defaults to qemu
 
 class tripleo::profile::base::neutron::ovs(
   $step                   = Integer(hiera('step')),
-  $vhostuser_socket_dir = hiera('neutron::agents::ml2::ovs::vhostuser_socket_dir', undef)
+  $vhostuser_socket_dir   = hiera('neutron::agents::ml2::ovs::vhostuser_socket_dir', undef),
+  $vhostuser_socket_group = hiera('vhostuser_socket_group', 'qemu'),
+  $vhostuser_socket_user  = hiera('vhostuser_socket_user', 'qemu'),
 ) {
   include ::tripleo::profile::base::neutron
 
@@ -38,8 +48,8 @@ class tripleo::profile::base::neutron::ovs(
     if $vhostuser_socket_dir {
       file { $vhostuser_socket_dir:
         ensure => directory,
-        owner  => 'qemu',
+        owner  => $vhostuser_socket_user,
-        group  => 'qemu',
+        group  => $vhostuser_socket_group,
         mode   => '0775',
       }
     }

spec/classes/tripleo_profile_base_neutron_ovs_spec.rb

@@ -58,6 +58,26 @@ describe 'tripleo::profile::base::neutron::ovs' do
         :mode   => '0775',
       ) }
     end
+
+    context 'with vhostuser_socketdir and its permissions configured' do
+      let :params do
+        {
+          :step => 5,
+          :vhostuser_socket_dir   => '/var/lib/vhostuser_sockets',
+          :vhostuser_socket_group => 'hugetlbfs',
+          :vhostuser_socket_user  => 'openvswitch'
+        }
+      end
+
+      it { is_expected.to contain_class('tripleo::profile::base::neutron') }
+      it { is_expected.to contain_class('neutron::agents::ml2::ovs') }
+      it { is_expected.to contain_file('/var/lib/vhostuser_sockets').with(
+        :ensure => 'directory',
+        :owner  => 'openvswitch',
+        :group  => 'hugetlbfs',
+        :mode   => '0775',
+      ) }
+    end
   end
 
   on_supported_os.each do |os, facts|