Add polkit rule to allow kolla nova user access to libvirtd socket on docker host

The polkit rules are currently evaluated in the context of the docker host.
As a result the check fails for the kolla nova compute user, as the uids are not
consistent with the host uids (in fact we probably can't assume a nova user exists
on the docker host).

As a short-term workaround a 'docker_nova' user group is created on the docker host
and the polkit rule is updated to grant this user access to the libvirtd socket.

Longer term solution probably requires running polkitd in a container too.

Change-Id: I91be1f1eacf8eed9017bbfef393ee2d66771e8d6
Related-bug: #1693844

1 files changed, 79 insertions, 0 deletions

diff --git a/spec/classes/tripleo_profile_base_docker_spec.rb b/spec/classes/tripleo_profile_base_docker_spec.rb
index 0b988f6..bb21055 100644
--- a/spec/classes/tripleo_profile_base_docker_spec.rb
+++ b/spec/classes/tripleo_profile_base_docker_spec.rb
@@ -124,6 +124,85 @@ describe 'tripleo::profile::base::docker' do
       }
     end
 
+    context 'with step 4 and configure_libvirt_polkit disabled' do
+      let(:params) { {
+          :step                    => 4,
+          :configure_libvirt_polkit => false
+      } }
+      it {
+        is_expected.to_not contain_group('docker_nova_group')
+        is_expected.to_not contain_user('docker_nova_user')
+        is_expected.to_not contain_package('polkit')
+        is_expected.to_not contain_file('/etc/polkit-1/rules.d/50-nova.rules')
+      }
+    end
+
+    context 'with step 4 and configure_libvirt_polkit enabled' do
+      let(:params) { {
+          :step                    => 4,
+          :configure_libvirt_polkit => true
+      } }
+      it {
+        is_expected.to contain_group('docker_nova_group').with(
+          :name => 'docker_nova',
+          :gid  => 42436
+        )
+        is_expected.to contain_user('docker_nova_user').with(
+          :name => 'docker_nova',
+          :uid  => 42436,
+          :gid  => 42436,
+          :shell => '/sbin/nologin',
+          :groups => ['nobody']
+        )
+        is_expected.to contain_package('polkit')
+        is_expected.to contain_file('/etc/polkit-1/rules.d/50-nova.rules')
+      }
+    end
+
+    context 'with step 4 and nova_compute service installed' do
+      let(:params) { {
+          :step          => 4,
+          :services_enabled => ['docker', 'nova_compute']
+      } }
+      it {
+        is_expected.to contain_group('docker_nova_group').with(
+          :name => 'docker_nova',
+          :gid  => 42436
+        )
+        is_expected.to contain_user('docker_nova_user').with(
+          :name => 'docker_nova',
+          :uid  => 42436,
+          :gid  => 42436,
+          :shell => '/sbin/nologin',
+          :groups => ['nobody']
+        )
+        is_expected.to contain_package('polkit')
+        is_expected.to contain_file('/etc/polkit-1/rules.d/50-nova.rules')
+      }
+    end
+
+    context 'with step 4 and configure_libvirt_polkit enabled and docker_nova uid' do
+      let(:params) { {
+          :step                    => 4,
+          :configure_libvirt_polkit => true,
+          :docker_nova_uid         => 12345
+      } }
+      it {
+        is_expected.to contain_group('docker_nova_group').with(
+          :name => 'docker_nova',
+          :gid  => 12345
+        )
+        is_expected.to contain_user('docker_nova_user').with(
+          :name => 'docker_nova',
+          :uid  => 12345,
+          :gid  => 12345,
+          :shell => '/sbin/nologin',
+          :groups => ['nobody']
+        )
+        is_expected.to contain_package('polkit')
+        is_expected.to contain_file('/etc/polkit-1/rules.d/50-nova.rules')
+      }
+    end
   end
 
   on_supported_os.each do |os, facts|