One of the benefits of the cloud is the scalability, and when you configure a RabbitMQ cluster, you need to automate the joining steps. You shouldn't manually configure each new RabbitMQ cluster node.
In this recipe we will see how to join new machines to the RabbitMQ cluster.
You need to create a VPC as we did in the Creating a cluster with two EC2 instances recipe.
In this example we use Ubuntu 12.04.3 LTS Cloud. Perform the following steps to join new machines to the cluster: