openstack/kolla-ansible
Code Issues Proposed changes
4df7d69874
kolla-ansible/doc/source/reference/message-queues/rabbitmq.rst
Jan Vondra 9137828b97 Allow passing arguments to RabbitMQ server 
Adds rabbitmq_server_additional_erl_args variable which
is appended to RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS
environment variable to RabbitMQ server startup script.

This can be used to configure the schedulers.

Docs attached.

Change-Id: Id683c8cc6dac61354ffd94f3b460335b42136ba2
Co-authored-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>
Related-bug: #1846467
2019-10-25 11:38:45 +02:00

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RabbitMQ

RabbitMQ is a message broker written in Erlang. It is currently the default provider of message queues in Kolla Ansible deployments.

Passing arguments to RabbitMQ server's Erlang VM

Erlang programs run in Erlang VM (virtual machine) and use Erlang runtime. Erlang VM can be configured.

Kolla Ansible makes it possible to pass arguments to the Erlang VM via the usage of rabbitmq_server_additional_erl_args variable. The contents of it are appended to RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS environment variable passed to RabbitMQ server startup script. Kolla Ansible already configures RabbitMQ server for IPv6 (if necessary). Any argument can be passed there as documented in https://www.rabbitmq.com/runtime.html