delete stack servers on stack deleting

devops-service/app/api2/handlers/stack.rb

@@ -26,6 +26,7 @@ module Devops
         def delete_stack id
           stack = self.stack(id)
           stack.delete_stack_in_cloud!
+          Devops::Db.connector.stack_servers_delete(id)
           Devops::Db.connector.stack_delete(id)
         end
 

devops-service/db/mongo/connectors/server.rb

@@ -63,6 +63,10 @@ module Connectors
       collection.update({'_id' => server.id}, {'$set' => {'chef_node_name' => server.chef_node_name}})
     end
 
+    def stack_servers_delete(stack_id)
+      collection.remove('stack' => stack_id)
+    end
+
     private
 
     def model_from_bson(bson)

devops-service/db/mongo/mongo_connector.rb

@@ -22,7 +22,7 @@ class MongoConnector
     :project_template_delete] => :projects_templates_connector,
     [:servers_find, :servers, :servers_by_names, :server_by_instance_id,
     :server_by_chef_node_name, :servers_by_key, :server_insert,
-    :server_delete, :server_update, :server_set_chef_node_name] => :servers_connector,
+    :server_delete, :server_update, :server_set_chef_node_name, :stack_servers_delete] => :servers_connector,
     [:user_auth, :user, :users, :users_names, :user_insert, :user_delete,
     :user_update, :create_root_user, :check_user_privileges] => :users_connector,
     [:keys, :key, :key_insert, :key_delete] => :keys_connector,