providers/digitalocean: add user_data for create droplet

fixes #267

resource_digitalocean_droplet.go

@@ -34,6 +34,7 @@ func resource_digitalocean_droplet_create(
 		PrivateNetworking: rs.Attributes["private_networking"],
 		Region:            rs.Attributes["region"],
 		Size:              rs.Attributes["size"],
+		UserData:          rs.Attributes["user_data"],
 	}
 
 	// Only expand ssh_keys if we have them
@@ -249,6 +250,7 @@ func resource_digitalocean_droplet_diff(
 			"region":             diff.AttrTypeCreate,
 			"size":               diff.AttrTypeUpdate,
 			"ssh_keys":           diff.AttrTypeCreate,
+			"user_data":          diff.AttrTypeCreate,
 		},
 
 		ComputedAttrs: []string{
@@ -322,6 +324,7 @@ func resource_digitalocean_droplet_validation() *config.Validator {
 		},
 		Optional: []string{
 			"backups",
+			"user_data",
 			"ipv6",
 			"private_networking",
 			"ssh_keys.*",

resource_digitalocean_droplet_test.go

@@ -30,7 +30,9 @@ func TestAccDigitalOceanDroplet_Basic(t *testing.T) {
 					resource.TestCheckResourceAttr(
 						"digitalocean_droplet.foobar", "image", "centos-5-8-x32"),
 					resource.TestCheckResourceAttr(
-						"digitalocean_droplet.foobar", "region", "nyc2"),
+						"digitalocean_droplet.foobar", "region", "nyc3"),
+					resource.TestCheckResourceAttr(
+						"digitalocean_droplet.foobar", "user_data", "foobar"),
 				),
 			},
 		},
@@ -242,7 +244,8 @@ resource "digitalocean_droplet" "foobar" {
     name = "foo"
     size = "512mb"
     image = "centos-5-8-x32"
-    region = "nyc2"
+    region = "nyc3"
+    user_data  = "foobar"
 }
 `