openstack-manuals/doc/install-guide/source/environment-memcached-rdo.rst
Petr Kovar 7c7791c66d [install] General edits for install guide
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Change-Id: I258d6ce980b0b3408d88b40e487f3079c2b55cdb
2017-08-29 15:57:24 +00:00

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Memcached for RHEL and CentOS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Identity service authentication mechanism for services uses Memcached
to cache tokens. The memcached service typically runs on the controller
node. For production deployments, we recommend enabling a combination of
firewalling, authentication, and encryption to secure it.
Install and configure components
--------------------------------
#. Install the packages:
.. code-block:: console
# yum install memcached python-memcached
.. end
2. Edit the ``/etc/sysconfig/memcached`` file and complete the
following actions:
* Configure the service to use the management IP address of the
controller node. This is to enable access by other nodes via
the management network:
.. code-block:: none
OPTIONS="-l 127.0.0.1,::1,controller"
.. end
.. note::
Change the existing line ``OPTIONS="-l 127.0.0.1,::1"``.
Finalize installation
---------------------
* Start the Memcached service and configure it to start when the system
boots:
.. code-block:: console
# systemctl enable memcached.service
# systemctl start memcached.service
.. end