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#!/bin/sh
set -e
# Reset rabbitmq
rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl start_app
cat << EOF > receive_logs.py
#!/usr/bin/env python3
import pika
connection = pika.BlockingConnection(
pika.ConnectionParameters(host='localhost'))
channel = connection.channel()
channel.exchange_declare(exchange='logs', exchange_type='fanout')
result = channel.queue_declare(queue='', exclusive=True)
queue_name = result.method.queue
channel.queue_bind(exchange='logs', queue=queue_name)
print(' [*] Waiting for logs. To exit press CTRL+C')
def callback(ch, method, properties, body):
print(f" [x] {body}")
channel.basic_consume(
queue=queue_name, on_message_callback=callback, auto_ack=True)
channel.start_consuming()
EOF
# create 2 consumers
python3 receive_logs.py &
python3 receive_logs.py &
# the consumers are listed in the bindings.
# # rabbitmqctl list_bindings | grep logs
# logs exchange amq.gen-9cej1xIy-VQLf6d3UXvU1w queue amq.gen-9cej1xIy-VQLf6d3UXvU1w []
# logs exchange amq.gen-H-ky4z3jFxa5UxpigJAD0g queue amq.gen-H-ky4z3jFxa5UxpigJAD0g []
rabbitmqctl list_bindings # print for debug
# Check that JSON formatter works as well
rabbitmqctl list_bindings --formatter json
if [ $(rabbitmqctl list_bindings | grep "logs" | awk '{print $1}' | wc -l) -eq 2 ]; then
echo "The number of consumers is 2."
else
echo "The number of consumers is not 2."
exit 1
fi
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