Define RabbitMQ policies in configuration file

Question

I\'d like to define mirroring for all my queues by default. I currently have to use rabbitmqctl once the node is up:

rabbit         


        

Answer 1

To add more details to IvanD's answer, this is how I did it.

First: sudo nano /etc/rabbitmq/rabbitmq.config (this command might be different depending on your OS)

[
  {rabbit,
    [
        {default_vhost,<<"/">>},
        {default_user,<<"someuser">>},
        {default_pass,<<"somepassword">>},
        {default_permissions, [<<".*">>, <<".*">>, <<".*">>]},
        {default_user_tags, [administrator]}
    ]
  },
  {rabbitmq_management,
    [{listener, [{port, 15672}]},
        {load_definitions, "/etc/rabbitmq/rabbitmq_definitions.json"},
        {http_log_dir, "/var/log/rabbitmq/management_http.log"}]
  }
].

Then create the additional json: sudo nano /etc/rabbitmq/rabbitmq_definitions.json (this command might be different depending on your OS). Its content:

{
  "vhosts":[
        {"name":"/"}
  ],
  "policies":[
        {"vhost":"/","name":"ha","pattern":"", "definition":{"ha-mode":"all","ha-sync-mode":"automatic","ha-sync-batch-size":5}}
  ]
}

IMPORTANT NOTE: The ha-sync-batch-size is only supported in RabbitMQ versions above 3.6.0! https://www.rabbitmq.com/ha.html#sync-batch-size If your Rabbit is older than that, remove the setting from the rabbitmq_definitions.json.

I'm using Ubuntu 14.04 Trusty and RabbitMQ v.3.6.2.