openstack-manuals/doc/contributor-guide/source/rst-conv/profiling.rst

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Profiling (conditional content)

Installation Guides has content that depends upon the operating systems.

Use the only directive to specify the content that is operating-system specific. Define one or several tags depending on the operating system the content belongs to.

The valid tags for the only directive are:

  • ubuntu for Ubuntu
  • debian for Debian
  • rdo for Red Hat Enterprise Linux and CentOS
  • obs for openSUSE and SUSE Linux Enterprise

Input

Install the NTP service
-----------------------

.. only:: ubuntu or debian

   .. code-block:: console

      # apt-get install chrony

.. only:: rdo

   .. code-block:: console

      # yum install chrony

.. only:: obs

   On openSUSE:

   .. code-block:: console

      # zypper addrepo http://download.opensuse.org/repositories/network:time/openSUSE_13.2/network:time.repo
      ...

   On SLES:

   .. code-block:: console

      # zypper addrepo http://download.opensuse.org/repositories/network:time/SLE_12/network:time.repo
      ...

For more details refer to Including content based on tags.