watch config to reload service

kafka/service.sls

@@ -3,12 +3,16 @@
 
 {% from "kafka/map.jinja" import kafka with context %}
 
+include:
+  - kafka.config
+
 kafka-name:
   service.running:
     - name: {{ kafka.service.name }}
     - enable: True
     - watch:
       - archive: kafka-tarball
+      - file: kafka-config
       - file: kafka-systemd
       - file: kafka-systemv
       - file: kafka-upstart