Do not create destroyed software instance.

master/bt5/vifib_slapos_core/WorkflowTemplateItem/portal_workflow/instance_slap_interface_workflow/scripts/RequesterInstance_request.xml

@@ -122,6 +122,10 @@ else:\n
   raise ValueError, "Too many instances \'%s\' found: %s" % (software_title, [x.path for x in request_software_instance_list])\n
 \n
 if (request_software_instance is None):\n
+  if (root_state == "destroyed"):\n
+    instance_found = False\n
+  else:\n
+    instance_found = True\n
     # First time that the software instance is requested\n
     if is_slave == True:\n
       software_instance_portal_type = "Slave Instance"\n
@@ -149,6 +153,7 @@ if (request_software_instance is None):\n
     graph[request_software_instance.getUid()] = []\n
 \n
 else:\n
+  instance_found = True\n
   # Update the predecessor category of the previous requester\n
   predecessor = request_software_instance.getPredecessorRelatedValue(portal_type="Software Instance")\n
   if (predecessor is None):\n
@@ -161,41 +166,46 @@ else:\n
   predecessor.edit(predecessor_uid_list=predecessor_uid_list)\n
   graph[predecessor.getUid()] = predecessor_uid_list\n
 \n
-# Change desired state\n
-promise_kw = {\n
+if instance_found:\n
+\n
+  # Change desired state\n
+  promise_kw = {\n
     \'instance_xml\': instance_xml,\n
     \'software_type\': software_type,\n
     \'sla_xml\': sla_xml,\n
     \'software_release\': software_release_url_string,\n
     \'shared\': is_slave,\n
-}\n
-request_software_instance_url = request_software_instance.getRelativeUrl()\n
-context.REQUEST.set(\'request_instance\', request_software_instance)\n
-if (root_state == "started"):\n
+  }\n
+  request_software_instance_url = request_software_instance.getRelativeUrl()\n
+  context.REQUEST.set(\'request_instance\', request_software_instance)\n
+  if (root_state == "started"):\n
     request_software_instance.requestStart(**promise_kw)\n
-elif (root_state == "stopped"):\n
+  elif (root_state == "stopped"):\n
     request_software_instance.requestStop(**promise_kw)\n
-elif (root_state == "destroyed"):\n
+  elif (root_state == "destroyed"):\n
     request_software_instance.requestDestroy(**promise_kw)\n
     context.REQUEST.set(\'request_instance\', None)\n
-else:\n
+  else:\n
     raise ValueError, "state should be started, stopped or destroyed"\n
 \n
-predecessor_list = requester_instance.getPredecessorList() + [request_software_instance_url]\n
-uniq_predecessor_list = list(set(predecessor_list))\n
-predecessor_list.sort()\n
-uniq_predecessor_list.sort()\n
+  predecessor_list = requester_instance.getPredecessorList() + [request_software_instance_url]\n
+  uniq_predecessor_list = list(set(predecessor_list))\n
+  predecessor_list.sort()\n
+  uniq_predecessor_list.sort()\n
 \n
-assert predecessor_list == uniq_predecessor_list, "%s != %s" % (predecessor_list, uniq_predecessor_list)\n
+  assert predecessor_list == uniq_predecessor_list, "%s != %s" % (predecessor_list, uniq_predecessor_list)\n
 \n
-# update graph to reflect requested operation\n
-graph[requester_instance.getUid()] = requester_instance.getPredecessorUidList() + [request_software_instance.getUid()]\n
+  # update graph to reflect requested operation\n
+  graph[requester_instance.getUid()] = requester_instance.getPredecessorUidList() + [request_software_instance.getUid()]\n
 \n
-# check if all elements are still connected and if there is no cycle\n
-request_software_instance.checkConnected(graph, hosting_subscription.getUid())\n
-request_software_instance.checkNotCyclic(graph)\n
+  # check if all elements are still connected and if there is no cycle\n
+  request_software_instance.checkConnected(graph, hosting_subscription.getUid())\n
+  request_software_instance.checkNotCyclic(graph)\n
 \n
-requester_instance.edit(predecessor_list=predecessor_list)\n
+  requester_instance.edit(predecessor_list=predecessor_list)\n
+\n
+else:\n
+  context.REQUEST.set(\'request_instance\', None)\n
 
 
 ]]></string> </value>

master/bt5/vifib_slapos_core/bt/revision

-39
\ No newline at end of file
+40
\ No newline at end of file