Merge ~troyanov/maas:fix-http-restart into maas:master

[Anton Troyanov]

fix(reverse_proxy): yield service_monitor call

[MAAS Lander (maas-lander)]

UNIT TESTS
-b fix-http-restart lp:~troyanov/maas/+git/maas into -b master lp:~maas-committers/maas

STATUS: SUCCESS
COMMIT: 534701f5f781a696cde903a141d1239c5967f8ca

review: Approve

[Igor Brovtsin (igor-brovtsin)]

+1

review: Approve

diff --git a/src/maasserver/regiondservices/http.py b/src/maasserver/regiondservices/http.py
index e79aa76..8a3758b 100644
--- a/src/maasserver/regiondservices/http.py
+++ b/src/maasserver/regiondservices/http.py
@@ -120,9 +120,9 @@ class RegionHTTPService(Service):
     @inlineCallbacks
     def _reload_service(self):
         if snap.running_in_snap():
-            service_monitor.restartService("reverse_proxy")
+            yield service_monitor.restartService("reverse_proxy")
         else:
-            service_monitor.reloadService("reverse_proxy")
+            yield service_monitor.reloadService("reverse_proxy")
         yield deferToDatabase(
             certificate_expiration_check.check_tls_certificate
         )