Install RabbitMQ Server on Ubuntu

RabbitMQ is an open-source message broker software that enables efficient and reliable communication between different components of an application or between multiple applications. It implements the Advanced Message Queuing Protocol (AMQP), a widely adopted standard for messaging middleware.RabbitMQ allows applications to communicate with each other by sending and receiving messages.

Key features of RabbitMQ include:

1. Message Queueing: RabbitMQ enables the queuing of messages between different components or systems. This helps in decoupling the producers of messages from the consumers, allowing for better scalability and flexibility.
2. Message Routing: It supports different routing mechanisms, including direct, topic, fanout, and headers exchanges. These mechanisms help in directing messages to specific queues based on criteria such as message content or routing keys.
3. Reliability: RabbitMQ provides features like message acknowledgments and persistence to ensure reliable message delivery. Messages can be persisted to disk, and acknowledgment mechanisms ensure that messages are not lost even if a consumer fails during processing.
4. Scalability: RabbitMQ is designed to be scalable, allowing you to distribute the message broker across multiple nodes to handle a large volume of messages and ensure high availability.
5. Protocol Support: RabbitMQ supports multiple messaging protocols, including Advanced Message Queuing Protocol (AMQP), MQTT (Message Queuing Telemetry Transport), and others. This makes it versatile and compatible with various systems.
6. Pluggable Architecture: RabbitMQ’s architecture is extensible through the use of plugins. This allows you to add functionalities and features to meet specific requirements.
7. Management Interface: RabbitMQ comes with a management plugin that provides a web-based user interface for monitoring and managing the RabbitMQ server. This interface allows you to view queues, exchanges, connections, and other statistics.

Overall, RabbitMQ is widely used in distributed systems, microservices architectures, and applications where different components need to communicate asynchronously. It helps in building scalable and loosely-coupled systems by providing a reliable messaging infrastructure.

Step 1: Install Erlang

sudo add-apt-repository ppa:rabbitmq/rabbitmq-erlang
sudo apt update
sudo apt install erlang

Remove Erlang and the PPA

To uninstall the Erlang version removed from the PPA and move it back to the version provided by the Ubuntu repositories, use PPA Purge.

sudo apt install ppa-purge
sudo ppa-purge ppa:rabbitmq/rabbitmq-erlang
sudo apt remove erlang

Step 2: Add RabbitMQ Repository to Ubuntu

curl -s https://packagecloud.io/install/repositories/rabbitmq/rabbitmq-server/script.deb.sh | sudo bash

Step 3: Install RabbitMQ Server Ubuntu

sudo apt update

Then install rabbitmq-server package:

sudo apt install rabbitmq-server

After installing RabbitMQ, the RabbitMQ service is initiated and configured to launch automatically on system boot. To verify its current status, execute the following command:

systemctl status rabbitmq-server.service

You can confirm if the service is configured to start on boot using the command:

$ systemctl is-enabled rabbitmq-server.service 

If it returns disabled, enable it by running:

sudo systemctl enable rabbitmq-server

Step 4: Enable the RabbitMQ Management Dashboard

sudo rabbitmq-plugins enable rabbitmq_management

The Web service should be listening on TCP port 15672

$ sudo ss -tunelp | grep 15672

tcp   LISTEN  0       128                    0.0.0.0:15672        0.0.0.0:*      users:(("beam.smp",pid=9525,fd=71)) uid:111 ino:39934 sk:9 <->

If you have an active UFW firewall, open both ports 5672 and 15672:

sudo ufw allow proto tcp from any to any port 5672,15672

Access it by opening the URL http://[server IP|Hostname]:15672 for example http://localhost:15672

The default configuration includes a user named “guest,” which is set up to connect exclusively from the localhost. You can log in locally using this user, and the password for authentication is set to “guest.”

To be able to login on the network, create an admin user like below:

sudo rabbitmqctl add_user admin password

sudo rabbitmqctl set_user_tags admin administrator

Login with this admin username and the password will be password .

Default Virtualhost is /

Step 5: Set RabbitMQ Cluster

RabbitMQ User Management Commands

Delete User:

rabbitmqctl delete_user test

Change User Password:

rabbitmqctl change_password test password

Create new Virtualhost:

rabbitmqctl add_vhost /testVhost

List available Virtualhosts:

rabbitmqctl list_vhosts

Delete a virtualhost:

rabbitmqctl delete_vhost /testVhost

Grant user permissions for vhost:

rabbitmqctl set_permissions -p /testVhost user ".*" ".*" ".*"

List vhost permissions:

rabbitmqctl list_permissions -p /testVhost

To list user permissions:

rabbitmqctl list_user_permissions test

Delete user permissions:

rabbitmqctl clear_permissions -p /testVhost test