Adding create server with network sample

samples/Compute/create_server_with_network.php

@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * Copyright 2014 Rackspace US, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+require dirname(__DIR__) . '/../vendor/autoload.php';
+
+use Guzzle\Http\Exception\BadResponseException;
+use OpenCloud\Compute\Constants\Network;
+use OpenCloud\Rackspace;
+
+// Instantiate a Rackspace client. You can replace {authUrl} with
+// Rackspace::US_IDENTITY_ENDPOINT or similar
+$client = new Rackspace('{authUrl}', array(
+    'username' => '{username}',
+    'apiKey'   => '{apiKey}',
+));
+
+$computeService = $client->computeService(null, '{region}');
+$networkService = $client->networkingService(null, '{region}');
+
+// Retrieve your custom network
+$customNetwork = $networkService->getNetwork('{networkId}');
+
+// Set up an empty server
+$server = $computeService->server();
+
+// Create the server. If you do not know what imageId or flavorId to use,
+// please run the list_flavors.php and list_images.php scripts.
+try {
+    $response = $server->create(array(
+        'name'     => '{serverName}',
+        'imageId'  => '{imageId}',
+        'flavorId' => '{flavorId}',
+        'networks' => array(
+          $customNetwork,
+          $computeService->network(Network::RAX_PRIVATE), 
+          $computeService->network(Network::RAX_PUBLIC),
+        ),
+    ));
+} catch (BadResponseException $e) {
+    echo $e->getResponse();
+}