openstack-manuals/doc/install-guide/source/environment-messaging-obs.rst
Doug Hellmann e39304d4ae fix pdf build
The PDF build does not include content multiple times if the same file
is included in a toctree more than once. That means we need to
restructure the guide to handle the common parts differently. This
approach merges some of the previously split sections back together
using inline prose to indicate where minor variations apply for
different operating systems but retaining separate files for cases where
the differences are significant.

Change-Id: I5d9ff549b05ca4ce54486719d70858589b8fcfa3
Depends-On: Ia750cb049c0f53a234ea70ce1f2bbbb7a2aa9454
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
2017-07-03 08:46:57 -04:00

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SUSE Message queue
~~~~~~~~~~~~~~~~~~
OpenStack uses a :term:`message queue` to coordinate operations and
status information among services. The message queue service typically
runs on the controller node. OpenStack supports several message queue
services including `RabbitMQ <https://www.rabbitmq.com>`__,
`Qpid <https://qpid.apache.org>`__, and `ZeroMQ <http://zeromq.org>`__.
However, most distributions that package OpenStack support a particular
message queue service. This guide implements the RabbitMQ message queue
service because most distributions support it. If you prefer to
implement a different message queue service, consult the documentation
associated with it.
The message queue runs on the controller node.
Install and configure components
--------------------------------
1. Install the package:
.. code-block:: console
# zypper install rabbitmq-server
.. end
2. Start the message queue service and configure it to start when the
system boots:
.. code-block:: console
# systemctl enable rabbitmq-server.service
# systemctl start rabbitmq-server.service
.. end
3. Add the ``openstack`` user:
.. code-block:: console
# rabbitmqctl add_user openstack RABBIT_PASS
Creating user "openstack" ...
.. end
Replace ``RABBIT_PASS`` with a suitable password.
4. Permit configuration, write, and read access for the
``openstack`` user:
.. code-block:: console
# rabbitmqctl set_permissions openstack ".*" ".*" ".*"
Setting permissions for user "openstack" in vhost "/" ...
.. end