erp5: propagate instance requested state to children instances

when stopping an erp5 cluster instance, other sub instances like mariadb, zodb, etc. will stay
started. Only the root instance will be stopped. This is because the root instance doesn't send
his state to children.

Add state in default requested now allow sub instances to be requested with parent state.

stack/erp5/buildout.hash.cfg

@@ -66,7 +66,7 @@ md5sum = 0969fbb25b05c02ef3c2d437b2f4e1a0
 
 [template]
 filename = instance.cfg.in
-md5sum = 330b72acf0752cce5da70b1fcdfac487
+md5sum = 3864676250334cbc0fef243c897f3a11
 
 [monitor-template-dummy]
 filename = dummy.cfg
@@ -74,7 +74,7 @@ md5sum = d41d8cd98f00b204e9800998ecf8427e
 
 [template-erp5]
 filename = instance-erp5.cfg.in
-md5sum = 9f8851af5faed9d1e346d7dbe0e6db5d
+md5sum = 3ead44530bb2126101b56a8f24608879
 
 [template-zeo]
 filename = instance-zeo.cfg.in

stack/erp5/instance-erp5.cfg.in

@@ -14,6 +14,7 @@
 {% set crl_update_period = slapparameter_dict.get('caucase', {}).pop('crl-update-periodicity', 'daily') -%}
 [request-common]
 <= request-common-base
+state = {{ instance_state }}
 config-use-ipv6 = {{ dumps(slapparameter_dict.get('use-ipv6', False)) }}
 
 {% macro request(name, software_type, config_key, config, ret={'url': True}, key_config={}) -%}

stack/erp5/instance.cfg.in

@@ -37,6 +37,7 @@ template = {{ template_erp5 }}
 filename = instance-erp5.cfg
 extra-context =
     key default_cloudooo_url dynamic-template-erp5-parameters:default-cloudooo-url
+    key instance_state slap-configuration:instance-state
     key jupyter_enable_default dynamic-template-erp5-parameters:jupyter-enable-default
     key local_bt5_repository dynamic-template-erp5-parameters:local-bt5-repository
     key template_monitor dynamic-template-erp5-parameters:template-monitor