Add files from flask app repo

Copy files from flask app repo

flask_producer.py

+#!/usr/bin/env python
+import pika
+import sys
+import socket
+import json
+import rabbitmq_config as rcfg
+
+if len(sys.argv) < 3:
+    sys.stderr.write("Usage: {} TAG USERNAME ".format(sys.argv[0]))
+    exit(1)
+
+node = sys.argv[1]
+user_name = sys.argv[2]
+
+message = {
+    "username": user_name,
+    "fullname": "Full Name",
+    "reason": "Reason1, Reason2."
+}
+
+hostname = socket.gethostname().split(".", 1)[0]
+connect_host = rcfg.Server if hostname != rcfg.Server else "localhost"
+
+# Set up credentials to connect to RabbitMQ server
+credentials = pika.PlainCredentials(rcfg.User, rcfg.Password)
+parameters = pika.ConnectionParameters(connect_host,
+                                   rcfg.Port,
+                                   rcfg.VHost,
+                                   credentials)
+
+# Establish connection to RabbitMQ server
+connection = pika.BlockingConnection(parameters)
+channel = connection.channel()
+channel.exchange_declare(exchange=rcfg.Exchange, exchange_type='direct')
+
+channel.basic_publish(exchange=rcfg.Exchange, routing_key=node, body=json.dumps(message))
+print(" [x] Sent {}: {}".format(node, json.dumps(message)))
+
+# creates a named queue
+result = channel.queue_declare(queue=user_name, exclusive=False, durable=True)
+
+# bind the queue with exchange
+channel.queue_bind(exchange=rcfg.Exchange, queue=user_name, routing_key=user_name)
+
+def work(ch, method, properties, body):
+    msg = json.loads(body)
+    print("Received message from {}: \n\t{}".format(method.routing_key, msg))
+    #queue_unbind(queue, exchange=None, routing_key=None, arguments=None, callback=None)
+    channel.queue_delete(method.routing_key)
+
+# ingest messages, and assume delivered via auto_ack
+channel.basic_consume(queue=sys.argv[2], on_message_callback=work, auto_ack=True)
+print("Subscribing to queue: {}".format(sys.argv[2]))
+
+# initiate message ingestion
+try:
+    channel.start_consuming()
+except KeyboardInterrupt:
+    print("Disconnecting from broker.")
+    channel.stop_consuming()
+connection.close()