Docker Network RabbitMQ - Shell/Bash

Introduction

When working with distributed systems, it is often necessary to have a messaging system that can facilitate communication between different components. RabbitMQ is a popular open-source message broker that can handle this task efficiently.

Docker provides a mechanism called networks that can be used to connect different containers together. This tutorial will show you how to create a RabbitMQ container and connect it to other containers using Docker networks.

Prerequisites

Before you begin, you will need to have Docker installed on your machine. If you don't have it already, you can download it from the official Docker website.

Creating a network

The first step is to create a Docker network that will be used to connect our containers. You can do this by running the following command:

docker network create my_network

This will create a network named my_network.

Starting RabbitMQ

Next, we need to start a RabbitMQ container that will be connected to our network. We can do this by running the following command:

docker run -d --network my_network --name rabbitmq rabbitmq

This will start a RabbitMQ container named rabbitmq and connect it to the my_network network. You should see a container ID outputted to the console.

Connecting to RabbitMQ

Now that we have a RabbitMQ container running, we can connect to it from other containers. In order to do this, we'll need to know the IP address of our RabbitMQ container.

You can obtain the IP address by running the following command:

docker network inspect my_network

This will output a JSON object that contains information about the my_network network, including the IP address of the RabbitMQ container.

Now that we know the IP address, we can connect to RabbitMQ using a programming language that supports the AMQP protocol, such as Python or Node.js.

Conclusion

In this tutorial, you learned how to create a RabbitMQ container and connect it to other containers using Docker networks. With this knowledge, you can start building distributed systems that use RabbitMQ as a messaging system.