Correct instance_guid in request frontend

stack/boinc/buildout.cfg

@@ -34,7 +34,7 @@ eggs =
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-boinc.cfg
 output = ${buildout:directory}/template-boinc.cfg
-md5sum = 88cb9251d54a05b69b9e7bfa9f07fef4
+md5sum = aec96557358303b5c5c05988a08bb86f
 mode = 0644
 
 #Template for deploying MySQL Database Server

stack/boinc/instance-boinc.cfg

@@ -305,11 +305,12 @@ name = Frontend
 # XXX We have hardcoded SR URL here.
 software-url = http://git.erp5.org/gitweb/slapos.git/blob_plain/HEAD:/software/apache-frontend/software.cfg
 slave = true
-config = url custom_domain instance_guid
+config = url custom_domain
 config-url = http://[$${apache-php:ip}]:$${apache-php:port}/
 return = site_url
 config-custom_domain = $${slap-parameter:domain}
-config-instance_guid = $${slap-parameter:instance_guid}
+sla = instance_guid
+sla-instance_guid = $${slap-parameter:instance_guid}
 
 
 # Deploy slapmonitor