fixed error with chef node name

devops-service/providers/openstack.rb

@@ -93,6 +93,11 @@ module Provider
 
     def create_server s, out
       out << "Creating server for project '#{s.project} - #{s.deploy_env}'\n"
+      if s.chef_node_name.nil?
+        out << "Generate new instance name: "
+        out << s.chef_node_name = create_default_chef_node_name(s)
+        out << "\n"
+      end
       networks = self.networks.select{|n| s.options[:subnets].include?(n["name"])}
       buf = s.options[:subnets] - networks.map{|n| n["name"]}
       unless buf.empty?