anchor.diff:  
         machines = mkOption {
           description = "Kubernetes controller list of machines to schedule to schedule onto";
  -        default = [];
  +        default = [config.networking.hostName];
           type = types.listOf types.str;
         };
   
  
positive.code:         script = ''
            export PATH="/bin:/sbin:/usr/bin:/usr/sbin:$PATH"
            exec ${cfg.package}/bin/kubelet \
              --etcd_servers=${concatMapStringsSep "," (f: "http://${f}") cfg.etcdServers} \
              --api_servers=${concatMapStringsSep "," (f: "http://${f}") cfg.kubelet.apiServers}  \
              --address=${cfg.kubelet.address} \
              --port=${toString cfg.kubelet.port} \
  
negative.code:       address = mkOption {
          description = "Kubernetes proxy listening address.";
          default = "0.0.0.0";
          type = types.str;
        };
  
        master = mkOption {
          description = "Kubernetes apiserver address";
          default = "${cfg.apiserver.address}:${toString cfg.apiserver.port}";
          type = types.str;
        };
  
  