terraform.tf in gce-host-0.3.4 vs terraform.tf in gce-host-0.4.0

@@ -3,11 +3,11 @@
   region = "asia-northeast1"
 }
 
 resource "google_compute_instance" "gce-host-web" {
   name         = "gce-host-web"
-  machine_type = "n1-standard-1"
+  machine_type = "f1-micro"
   zone         = "asia-northeast1-a"
 
   disk {
     image = "ubuntu-1404-trusty-v20161020"
   }
@@ -18,19 +18,19 @@
       # Ephemeral IP
     }
   }
 
   metadata {
-    roles = "foo,web:test"
+    roles = "foo,web:test:foo:bar:baz"
     service = "gce-host"
     status = "reserve"
     tags = "standby"
   }
 }
 
 resource "google_compute_instance" "gce-host-db" {
   name         = "gce-host-db"
-  machine_type = "n1-standard-1"
+  machine_type = "f1-micro"
   zone         = "asia-northeast1-a"
 
   disk {
     image = "ubuntu-1404-trusty-v20161020"
   }