New example: Distributed task queue

Adds an example of using Kubernetes to build a distributed task queue
using Celery along with a RabbitMQ broker and Flower frontend.

Resolves: #1788

examples/celery-rabbitmq/celery-app-add/run.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# 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.
+
+# Run the celery worker
+/usr/local/bin/celery -A celery_conf worker -f /data/celery.log &
+
+# Start firing periodic tasks automatically
+python /data/run_tasks.py