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rabbitmq

This role configures RabbitMQ cluster.

Requirements

Clustering requires proper short hostname resolution on every node in cluster. Use some /etc/hosts setup role for this. All other requirements are listed in metadata file.

Role Variables

The variables that can be passed to this role and a brief description about them are as follows.

# Set /var/lib/rabbitmq/.erlang.cookie
rabbitmq_erlang_cookie: 1qa2ws3ed

# Set max open files for rabbit process 
rabbitmq_ulimit_open_files: 1024

# Use cluster or no
rabbitmq_create_cluster: no

# Short hostname of cluster master, on master node it must be specified too
rabbitmq_cluster_master: localhost

# Vhosts to create
rabbitmq_vhosts: []

# Enabled plugins
rabbitmq_plugins:
  - rabbitmq_management

# Users to create, self explained parameters
rabbitmq_users:
  - user: admin
    password: admin
    vhost: /
    configure_priv: .*
    read_priv: .*
    write_priv: .*
    tags: administrator

# Users to remove
rabbitmq_users_removed:
  - guest

Examples

First of all you need configure /etc/hosts:

[all]
hosts:
  - { ip: '10.0.0.1', domain: 'mq1' }
  - { ip: '10.0.0.2', domain: 'mq2' }
  - { ip: '10.0.0.3', domain: 'mq3' }
  - { ip: '10.0.0.4', domain: 'mq4' }

[rabbidz]
mq1.local rabbitmq_cluster_master=mq2
mq2.local rabbitmq_cluster_master=mq2
mq3.local rabbitmq_cluster_master=mq3
mq4.local rabbitmq_cluster_master=mq3

[rabbidz:vars]
rabbitmq_create_cluster=yes

or you can use group variables (preferably)

[rabbidz1]
mq1.local
mq2.local

[rabbidz1:vars]
rabbitmq_create_cluster=yes
rabbitmq_cluster_master=mq3

[rabbidz2]
mq3.local
mq4.local

[rabbidz2:vars]
rabbitmq_create_cluster=yes
rabbitmq_cluster_master=mq3

License

LGPL

Author Information

  • Alexey Medvedchikov, 2GIS, LLC