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Biju Kunjummen

Docker RabbitMQ cluster

I have been trying to create a Docker based RabbitMQ cluster on and off for sometime and got it working today – fairly basic and flaky but could be a good starting point for others to improve on.

This is how the sample cluster looks on my machine, this is a typical cluster described in the RabbitMQ clustering guide available here -https://www.rabbitmq.com/clustering.html. As recommended at the site, there are 2 disk based nodes and 1 RAM based node here.

 
 
 
 
SampleRabbitMQCluster

To quickly replicate this, you only need to have fig in your machine, just create a fig.yml file with the following entry:

rabbit1:
  image: bijukunjummen/rabbitmq-server
  hostname: rabbit1
  ports:
    - "5672:5672"
    - "15672:15672"

rabbit2:
  image: bijukunjummen/rabbitmq-server
  hostname: rabbit2
  links:
    - rabbit1
  environment: 
   - CLUSTERED=true
   - CLUSTER_WITH=rabbit1
   - RAM_NODE=true

rabbit3:
  image: bijukunjummen/rabbitmq-server
  hostname: rabbit3
  links:
    - rabbit1
    - rabbit2
  environment: 
   - CLUSTERED=true
   - CLUSTER_WITH=rabbit1

and in the folder holding this file, run:

fig up

That is it!, the entire cluster should come up. If you need more nodes, just modify the fig.yml file.

The docker files for creating the dockerized rabbitmq-server is available at my github repo here: https://github.com/bijukunjummen/docker-rabbitmq-cluster and the “rabbitmq-server” image itself is here at the docker hub.

References

Reference: Docker RabbitMQ cluster from our JCG partner Biju Kunjummen at the all and sundry blog.
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