openstack-manuals/doc/install-guide/source/environment-ntp-other.rst
Andreas Jaeger 2d44b2b36d Prepare for Sphinx 1.5
The new sphinx version introduces some changes that break build:

* Warns if code cannot be parsed for highlighting. Fix the code so
  that it can be parsed, this includes uncommenting "..." lines.
  Note that not every config file is an ini-file.
  Also, the parser seems to have bugs and cannot parse all files.
  Fix mysql ini file and enable the parameter, see
http://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_file_per_table
* :option: works only with declared options, replace useage with
  simple ``.

This change only handles a few files, more to come later.

Change-Id: I7c7335e514581622dd562ee355f62d6ae1beaa18
2017-01-11 20:37:55 +01:00

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.. _environment-ntp-other:
Other nodes
~~~~~~~~~~~
Other nodes reference the controller node for clock synchronization.
Perform these steps on all other nodes.
Install and configure components
--------------------------------
1. Install the packages:
.. only:: ubuntu or debian
.. code-block:: console
# apt install chrony
.. end
.. endonly
.. only:: rdo
.. code-block:: console
# yum install chrony
.. end
.. endonly
.. only:: obs
.. code-block:: console
# zypper install chrony
.. end
.. endonly
.. only:: ubuntu or debian
2. Edit the ``/etc/chrony/chrony.conf`` file and comment out or remove all
but one ``server`` key. Change it to reference the controller node:
.. path /etc/chrony/chrony.conf
.. code-block:: shell
server controller iburst
.. end
3. Comment out the ``pool 2.debian.pool.ntp.org offline iburst`` line.
4. Restart the NTP service:
.. code-block:: console
# service chrony restart
.. end
.. endonly
.. only:: rdo or obs
2. Edit the ``/etc/chrony.conf`` file and comment out or remove all but one
``server`` key. Change it to reference the controller node:
.. path /etc/chrony.conf
.. code-block:: shell
server controller iburst
.. end
3. Start the NTP service and configure it to start when the system boots:
.. code-block:: console
# systemctl enable chronyd.service
# systemctl start chronyd.service
.. end
.. endonly