Adding parameter hash-files to haproxy section

- List of configuration files that are used to generate the hash for the service wrapper's name.

/reviewed-on nexedi/slapos!333

stack/erp5/buildout.hash.cfg

@@ -91,7 +91,7 @@ md5sum = 7fb40624bd0dcd96a1df03395da64ebd
 
 [template-balancer]
 filename = instance-balancer.cfg.in
-md5sum = 29cfe35d37cf615378574707978e5f75
+md5sum = 55fce4e96d844cc418c586d8d9a67c29
 
 [template-haproxy-cfg]
 filename = haproxy.cfg.in

stack/erp5/instance-balancer.cfg.in

@@ -161,6 +161,7 @@ extensions = jinja2.ext.do
 recipe = slapos.cookbook:wrapper
 wrapper-path = ${directory:services}/haproxy
 command-line = "{{ parameter_dict['haproxy'] }}/sbin/haproxy" -f "${haproxy-cfg:rendered}"
+hash-files = ${haproxy-cfg:rendered}
 
 {# TODO: build socat and wrap it as "${directory:bin}/haproxy-ctl" to connect to "${haproxy-cfg-parameter-dict:socket-path}" #}