Try to set up var/run/fedmsg right for bodhi-backend.

roles/bodhi2/backend/tasks/main.yml

@@ -307,12 +307,14 @@
 
 - name: ensure that nrpe has rights to monitor us
   file: >
-    dest=/var/run/fedmsg/monitoring-fedmsg-hub.socket
+    dest=/var/run/fedmsg
     mode=0775
-    owner=fedmsg
+    owner=masher
     group=nrpe
-    state=file
+    state=directory
   ignore_errors: true
+  notify:
+  - restart fedmsg-hub
   tags:
   - fedmsgmonitor
   - bodhi