Notify not only cinder service, but also Apache

Apache needs to be notified as well in case the API is being served in
that context, otherwise config changes would not take effect without
manual intervention.

Change-Id: If5e7c14d59843ee7c813eb1df8d7131e002dbd22

manifests/api.pp

@@ -262,6 +262,7 @@ class cinder::api (
       enable => false,
       tag    => ['cinder-service'],
     }
+    Service <| title == 'httpd' |> { tag +> 'cinder-service' }
 
     # we need to make sure cinder-api/eventlet is stopped before trying to start apache
     Service['cinder-api'] -> Service[$service_name]

releasenotes/notes/restart-apache-6b5d1e4ef37b7ff6.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Notify Apache in case the API is served in that context when the API is
+    supposed to be restarted, for instance due to configuration changes.