health-check: fix swiftlogs test

It seems like the swiftlog health-check doesn't exit with a working zuul setup
because the jenkins gearman client takes time to reconnect after the last restart.
This causes the preprod test to fail because further change are not processed when
submitted too early. This change fixes that by stopping zuul and jenkins before
setting swiftlogs settings.

Change-Id: Idf24f283b052dbeea6b63c84d43cc9684066a2b9

Author: TristanCacqueray

Diff for: playbooks/sfconfig_logs_setup.yaml

@@ -1,5 +1,18 @@
 ---
 # * Setup logs export
+- hosts: jenkins
+  tasks:
+    - name: Stop jenkins service
+      service: name=jenkins state=stopped
+
+- hosts: zuul
+  tasks:
+    - name: Stop zuul services
+      service: name={{ item }} state=restarted
+      with_items:
+        - zuul-merger
+        - zuul
+
 - hosts: install-server
   tasks:
     - name: Add swift logs configuration to sfconfig
@@ -15,12 +28,6 @@
     - name: Restart sfconfig
       command: sfconfig.py
 
-- hosts: zuul
-  tasks:
-    # TODO: fixme
-    - name: Restart zuul to take logsexport option into account
-      service: name=zuul state=restarted
-
 - hosts: zuul
   tasks:
     - name: "Check configuration"