Today, we are going to install Erlang version 20.1 and RabbitMQ 3.7 on an Amazon EC2 instance which has an Amazon Linux version installed in it. In a nutshell, we can say that Amazon Linux can be considered equivalent to CentOS 6.

I am not going to eat up your times, so I'll just jump directly into the commands that you have to execute on your new instance. Before we start, please ensure:

1. You have the administrative privileges. 
2. Java 8 is installed.

Briefly, to install RabbitMQ, we would need Erlang and Socat to be installed first.

Installing Erlang Version 20.1

Erlang is also a language which needs to be installed. Use the following commands to install Erlang.

# cd /opt
# wget https://github.com/rabbitmq/erlang-rpm/releases/download/v20.1.7/erlang-20.1.7-1.el6.x86_64.rpm
# rpm -ivh erlang-20.1.7-1.el6.x86_64.rpm

Installing Socat

This is the package which is needed to install RabbitMQ V 3.7, so install it beforehand with the following command:

# yum install socat

Installing RabbitMQ v3.7.0

So now the ground is ready to install the RabbitMQ server. Use the following commands to proceed:

# wget https://dl.bintray.com/rabbitmq/all/rabbitmq-server/3.7.0/rabbitmq-server-3.7.0-1.el6.noarch.rpm
# rpm -ivhrabbitmq-server-3.7.0-1.el6.noarch.rpm
# service rabbitmq-server start

Now we have to make sure that RabbitMQ is up as a service as soon as the server starts up. To do this, execute the following command: 

# chkconfigrabbitmq-server on

To access the RabbitMQ Management Console on the web, we need to enable the plugin. To do so execute the following command:

#  cd /usr/lib/rabbitmq/bin/
# rabbitmq-plugins enable rabbitmq_management
# cd /etc/rabbitmq/
# vim rabbitmq.config
[{rabbit, [{tcp_listeners, [{"", 5672}]},{loopback_users, []}]}].
Esc+:wq! (To save file and exit editor)

Now you can access RabbitMQ on the browser using:

http://<IP_Of_Your_AWS_Machine>:15672/

To log in, use guest/guest as the default password, which you can change later.

Congratulations, you did it!

Do share your thoughts if you have any queries or suggestions. 

Thanks!

Ajay Sodhi