Adding dev versions of other agents for testing

flask_producer.py

+import pika
+import sys
+import socket
+import json
+import rabbit_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)
+
+# 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()

ohpc_account_create.py

+#!/usr/bin/env python
+import pika # python client
+import sys
+import rabbit_config as rcfg
+import socket
+import subprocess
+import time
+import json
+from pwd import getpwnam
+
+hostname = socket.gethostname().split(".", 1)[0]
+connect_host = rcfg.Server if hostname != rcfg.Server else "localhost"
+queue_name = "ohpc_account_create"
+duration = 2
+
+# 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()
+
+print "connection established. Listening for messages:"
+
+# create exchange to pass messages
+channel.exchange_declare(exchange=rcfg.Exchange, exchange_type='direct')
+
+# creates a random name for the newly generated queue
+result = channel.queue_declare(queue=queue_name, exclusive=False)
+
+channel.queue_bind(exchange=rcfg.Exchange, queue=queue_name, routing_key=queue_name)
+
+def slurm_account_create(ch, method, properties, body):
+    msg = json.loads(body)
+    print("Message received {}".format(msg))
+    username = msg['username']
+    try:
+        subprocess.call(["sudo", "useradd", "-m", username])
+    except:
+        print("Failed to create user")
+
+    channel.basic_ack(delivery_tag=method.delivery_tag)
+    msg['uid'] = getpwnam(username).pw_uid
+    msg['gid'] = getpwnam(username).pw_gid
+    channel.basic_publish(exchange=rcfg.Exchange, routing_key='ood_account_create', body=json.dumps(msg))
+
+
+# ingest messages
+channel.basic_consume(queue=queue_name, on_message_callback=slurm_account_create)
+
+# initiate message ingestion
+try:
+    channel.start_consuming()
+except KeyboardInterrupt:
+    print("Disconnecting from broker.")
+    channel.stop_consuming()
+
+connection.close()

ood_account_create.py

+#!/usr/bin/env python
+import pika # python client
+import sys
+import rabbit_config as rcfg
+import socket
+import subprocess
+import time
+import json
+
+hostname = socket.gethostname().split(".", 1)[0]
+connect_host = rcfg.Server if hostname != rcfg.Server else "localhost"
+queue_name = "ood_account_create"
+duration = 2
+
+# 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()
+
+print "connection established. Listening for messages:"
+
+# create exchange to pass messages
+channel.exchange_declare(exchange=rcfg.Exchange, exchange_type='direct')
+
+# creates a random name for the newly generated queue
+result = channel.queue_declare(queue=queue_name, exclusive=False)
+
+channel.queue_bind(exchange=rcfg.Exchange, queue=queue_name, routing_key=queue_name)
+
+def slurm_account_create(ch, method, properties, body):
+    msg = json.loads(body)
+    print("Message received {}".format(msg))
+    username = msg['username']
+    user_uid = msg['uid']
+    user_gid = msg['gid']
+    try:
+        subprocess.call(["sudo", "groupadd", "-r", "-g", user_gid, username])
+        time.sleep(10)
+        subprocess.call(["sudo", "useradd", "-u", user_uid, "-g", user_gid, "-m", username])
+    except:
+        print("Failed to create user")
+
+    channel.basic_ack(delivery_tag=method.delivery_tag)
+
+    channel.basic_publish(exchange=rcfg.Exchange, routing_key='slurm_add_account', body=json.dumps(msg))
+
+
+# ingest messages
+channel.basic_consume(queue=queue_name, on_message_callback=slurm_account_create)
+
+# initiate message ingestion
+try:
+    channel.start_consuming()
+except KeyboardInterrupt:
+    print("Disconnecting from broker.")
+    channel.stop_consuming()
+
+connection.close()

rabbit_config.py

+Exchange = 'RegUsr'
+User = 'reggie'
+Password = 'reg19890'
+VHost = '/'
+Server = 'ood'
+Port = 5672