erp5: repair instanciation when no test runner is generated

The case where test runner is not enabled got broken in
2a457867

stack/erp5/buildout.hash.cfg

@@ -74,7 +74,7 @@ md5sum = d41d8cd98f00b204e9800998ecf8427e
 
 [template-erp5]
 filename = instance-erp5.cfg.in
-md5sum = d6e98e66dbff9077d6d8e6d3ea23e48a
+md5sum = 3beaeda87f9affefb87ef106977c7a2a
 
 [template-zeo]
 filename = instance-zeo.cfg.in
@@ -86,7 +86,7 @@ md5sum = 7415a758c1076888d675aca1d9440b22
 
 [template-balancer]
 filename = instance-balancer.cfg.in
-md5sum = a4caf55109bd12740e4f29c3931776b1
+md5sum = de0aa4aabb74e688f308bf2b1e9f4a71
 
 [template-haproxy-cfg]
 filename = haproxy.cfg.in

stack/erp5/instance-balancer.cfg.in

@@ -136,7 +136,7 @@ ipv6 = {{ zope_address.split(']:')[0][1:] }}
 {%       set test_runner_apache_url_list = [] %}
 {%       set test_runner_external_port = next_port() %}
 {%       for i, (test_runner_internal_ip, test_runner_internal_port) in
-             enumerate(slapparameter_dict[parameter_id ~ '-test-runner-address-list']) %}
+             enumerate(slapparameter_dict.get(parameter_id ~ '-test-runner-address-list', [])) %}
 {%         do test_runner_backend_mapping.__setitem__(
                 'unit_test_' ~ i,
                 'http://' ~ test_runner_internal_ip ~ ':' ~ test_runner_internal_port ) %}

stack/erp5/instance-erp5.cfg.in

@@ -195,7 +195,9 @@ config-longrequest-logger-timeout = {{ dumps(zope_parameter_dict.get('longreques
 config-large-file-threshold = {{ dumps(zope_parameter_dict.get('large-file-threshold', "10MB")) }}
 config-port-base = {{ dumps(zope_parameter_dict.get('port-base', 2200)) }}
 config-webdav = {{ dumps(zope_parameter_dict.get('webdav', False)) }}
+{%   if test_runner_enabled -%}
 config-test-runner-apache-url-list = ${publish-early:{{ zope_family }}-test-runner-url-list}
+{%   endif -%}
 {% endfor -%}
 
 {# if not explicitly configured, connect jupyter to first zope family, which  -#}
@@ -324,9 +326,11 @@ hosts-dict = {{ '${' ~ zope_address_list_id_dict.keys()[0] ~ ':connection-hosts-
 {% for name, value in publish_dict.items() -%}
 {{   name }} = {{ value }}
 {% endfor -%}
+{% if test_runner_enabled -%}
 {%   for zope_family_name in zope_family_name_list -%}
 {{ zope_family_name }}-test-runner-url-list = ${request-balancer:connection-{{ zope_family_name }}-test-runner-url-list}
 {%   endfor -%}
+{% endif -%}
 
 
 [publish-early]
@@ -337,9 +341,11 @@ recipe = slapos.cookbook:publish-early
 {%- if has_posftix %}
   smtpd-sasl-password gen-smtpd-sasl-password:passwd
 {%- endif %}
+{% if test_runner_enabled -%}
 {%   for zope_family_name in zope_family_name_list %}
   {{ zope_family_name }}-test-runner-url-list default-balancer-test-runner-url-list:default
 {%   endfor -%}
+{% endif -%}
 {%- if neo %}
   neo-cluster gen-neo-cluster:name
 {%-  if neo[0] %}