erp5: Publish site-id, as it is auto-generated when not provided.

software/erp5/instance-erp5-output-schema.json

@@ -2,6 +2,10 @@
   "$schema": "http://json-schema.org/draft-04/schema#",
   "description": "Values returned by ERP5 instanciation",
   "properties": {
+    "site-id": {
+      "description": "Chosen ERP5Site object identifier",
+      "type": "string"
+    },
     "kumofs-url": {
       "description": "Persistent memcached access information",
       "type": "string"

stack/erp5/buildout.cfg

@@ -272,7 +272,7 @@ extra-context =
 [template-erp5]
 < = download-base
 filename = instance-erp5.cfg.in
-md5sum = fabf98dcb9e3d0fa8236397d69293528
+md5sum = 0de8f9b4c873975a80bc3b0885c964ab
 
 [template-neo]
 < = download-base

stack/erp5/instance-erp5.cfg.in

 {% if slap_software_type == software_type -%}
-{% set publish_dict = {} -%}
 {% set frontend_dict = slapparameter_dict.get('frontend', {}) %}
 {% set has_frontend = frontend_dict.get('software-url', '') != '' -%}
 {% set site_id = slapparameter_dict.get('site-id', 'erp5') -%}
+{% set publish_dict = {'site-id': site_id} -%}
 [request-common]
 recipe = slapos.cookbook:request.serialised
 software-url = ${slap-connection:software-release-url}