Add push example

Author: clue

examples/push.php

@@ -0,0 +1,29 @@
+<?php
+// this example shows how the imagePush() call can be used to publish a given image.
+// this requires authorization and this example includes some invalid defaults.
+
+require __DIR__ . '/../vendor/autoload.php';
+
+use React\EventLoop\Factory as LoopFactory;
+use Clue\React\Docker\Factory;
+
+$image = isset($argv[1]) ? $argv[1] : 'asd';
+$auth = json_decode('{"username": "string", "password": "string", "email": "string", "serveraddress" : "string", "auth": ""}');
+echo 'Pushing image "' . $image . '" (pass as argument to this example)' . PHP_EOL;
+
+$loop = LoopFactory::create();
+
+$factory = new Factory($loop);
+$client = $factory->createClient();
+
+$client->imagePush($image, null, null, $auth)->then(
+    function ($response) {
+        echo 'response: ' . json_encode($response) . PHP_EOL;
+    },
+    'var_dump',
+    function ($info) {
+        echo 'update: ' . json_encode($info) . PHP_EOL;
+    }
+);
+
+$loop->run();