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Docker RabbitMQ Cluster

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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.

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

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

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

  image: bijukunjummen/rabbitmq-server
  hostname: rabbit3
    - rabbit1
    - rabbit2
    - 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.


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Published at DZone with permission of Biju Kunjummen, DZone MVB. See the original article here.

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