Do not define service resource when service management is disabled

Change-Id: If8f1baacf56cc5a78032a72c8b24f1db487feb58

manifests/api.pp

@@ -436,15 +436,6 @@ class barbican::api (
     }
   }
 
-
-  if $manage_service {
-    if $enabled {
-      $service_ensure = 'running'
-    } else {
-      $service_ensure = 'stopped'
-    }
-  }
-
   # set value to have the server auto-create the database on startup
   # instead of using db_sync
   barbican_config { 'DEFAULT/db_auto_create': value => $db_auto_create }
@@ -469,52 +460,60 @@ class barbican::api (
     include barbican::db::sync
   }
 
-  if $service_name == 'barbican-api' or $service_name == $::barbican::params::api_service_name {
-
-    if $::operatingsystem == 'Ubuntu' {
-      fail('With Ubuntu packages the service_name must be set to httpd as there is no eventlet init script.')
+  if $manage_service {
+    if $enabled {
+      $service_ensure = 'running'
+    } else {
+      $service_ensure = 'stopped'
     }
 
-    if $::osfamily == 'RedHat' and $service_name == 'barbican-api' {
-      warning('The usage of barbican-api as service_name in Red Hat based OS is \
+    if $service_name == 'barbican-api' or $service_name == $::barbican::params::api_service_name {
+
+      if $::operatingsystem == 'Ubuntu' {
+        fail('With Ubuntu packages the service_name must be set to httpd as there is no eventlet init script.')
+      }
+
+      if $::osfamily == 'RedHat' and $service_name == 'barbican-api' {
+        warning('The usage of barbican-api as service_name in Red Hat based OS is \
 deprecated and will be removed in a future release. Use openstack-barbican-api instead.')
-    }
-
-    service { 'barbican-api':
-      ensure     => $service_ensure,
-      name       => $::barbican::params::api_service_name,
-      enable     => $enabled,
-      hasstatus  => true,
-      hasrestart => true,
-      tag        => 'barbican-service',
-    }
-
-    # Debian is using UWSGI, not gunicorn
-    if $::operatingsystem != 'Debian' {
-      file_line { 'Modify bind_port in gunicorn-config.py':
-        path  => '/etc/barbican/gunicorn-config.py',
-        line  => "bind = '${bind_host}:${bind_port}'",
-        match => '.*bind = .*',
-        tag   => 'modify-bind-port',
       }
-    }
 
-  } elsif $service_name == 'httpd' {
-    # Ubuntu packages does not have a barbican-api service
-    if $::operatingsystem != 'Ubuntu' {
       service { 'barbican-api':
-        ensure => 'stopped',
-        name   => $::barbican::params::api_service_name,
-        enable => false,
-        tag    => 'barbican-service',
+        ensure     => $service_ensure,
+        name       => $::barbican::params::api_service_name,
+        enable     => $enabled,
+        hasstatus  => true,
+        hasrestart => true,
+        tag        => 'barbican-service',
       }
-      Service <| title == 'httpd' |> { tag +> 'barbican-service' }
 
-      # we need to make sure barbican-api is stopped before trying to start apache
-      Service['barbican-api'] -> Service[$service_name]
+      # Debian is using UWSGI, not gunicorn
+      if $::operatingsystem != 'Debian' {
+        file_line { 'Modify bind_port in gunicorn-config.py':
+          path  => '/etc/barbican/gunicorn-config.py',
+          line  => "bind = '${bind_host}:${bind_port}'",
+          match => '.*bind = .*',
+          tag   => 'modify-bind-port',
+        }
+      }
+
+    } elsif $service_name == 'httpd' {
+      # Ubuntu packages does not have a barbican-api service
+      if $::operatingsystem != 'Ubuntu' {
+        service { 'barbican-api':
+          ensure => 'stopped',
+          name   => $::barbican::params::api_service_name,
+          enable => false,
+          tag    => 'barbican-service',
+        }
+        Service <| title == 'httpd' |> { tag +> 'barbican-service' }
+
+        # we need to make sure barbican-api is stopped before trying to start apache
+        Service['barbican-api'] -> Service[$service_name]
+      }
+    } else {
+      fail('Invalid service_name. Use barbican-api for stand-alone or httpd')
     }
-  } else {
-    fail('Invalid service_name. Use barbican-api for stand-alone or httpd')
   }
 
   oslo::middleware { 'barbican_config':

spec/classes/barbican_api_spec.rb

@@ -339,17 +339,10 @@ describe 'barbican::api' do
           {
             :manage_service => false,
             :enabled        => false,
-            :auth_strategy  => 'keystone',
           }
         end
 
-        it { is_expected.to contain_service('barbican-api').with(
-          'ensure'     => nil,
-          'enable'     => false,
-          'hasstatus'  => true,
-          'hasrestart' => true,
-          'tag'        => 'barbican-service',
-        )}
+        it { is_expected.to_not contain_service('barbican-api') }
       end
     end
   end