make openstack acceptance test template use env vars
diff --git a/acceptance/openstack/orchestration/v1/common.go b/acceptance/openstack/orchestration/v1/common.go
index b010385..2c28dcb 100644
--- a/acceptance/openstack/orchestration/v1/common.go
+++ b/acceptance/openstack/orchestration/v1/common.go
@@ -3,6 +3,7 @@
 package v1
 
 import (
+	"fmt"
 	"os"
 	"testing"
 
@@ -11,31 +12,22 @@
 	th "github.com/rackspace/gophercloud/testhelper"
 )
 
-const template = `
+var template = fmt.Sprintf(`
 {
-		"heat_template_version": "2013-05-23",
-		"description": "Simple template to test heat commands",
-		"parameters": {
-				"flavor": {
-						"default": "m1.tiny",
-						"type": "string"
-				}
-		},
-		"resources": {
-				"hello_world": {
-						"type":"OS::Nova::Server",
-						"properties": {
-								"key_name": "heat_key",
-								"flavor": {
-										"get_param": "flavor"
-								},
-								"image": "ad091b52-742f-469e-8f3c-fd81cadf0743",
-								"user_data": "#!/bin/bash -xv\necho \"hello world\" > /root/hello-world.txt\n"
-						}
-				}
+	"heat_template_version": "2013-05-23",
+	"description": "Simple template to test heat commands",
+	"parameters": {},
+	"resources": {
+		"hello_world": {
+			"type":"OS::Nova::Server",
+			"properties": {
+				"flavor": "%s",
+				"image": "%s",
+				"user_data": "#!/bin/bash -xv\necho \"hello world\" > /root/hello-world.txt\n"
+			}
 		}
-}
-`
+	}
+}`, os.Getenv("OS_FLAVOR_ID"), os.Getenv("OS_IMAGE_ID"))
 
 func newClient(t *testing.T) *gophercloud.ServiceClient {
 	ao, err := openstack.AuthOptionsFromEnv()