openstack/deb-sahara
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Add a brief description of the default template mechanism

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Change-Id: I6455442404c8d9074c8b4cd30b4624d0dde05514
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Trevor McKay 2015-04-08 13:06:31 -04:00
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doc/source/userdoc/installation.guide.rst
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@ -194,6 +194,56 @@ installations of sahara.
5. For more information on configuring sahara with the OpenStack Dashboard
please see :doc:`dashboard.guide`.
Optional installation of default templates
------------------------------------------
Sahara bundles default templates that define simple clusters for the
supported plugins. These templates may optionally be added to the
Sahara database using a simple CLI included with Sahara.
The default template CLI is described in detail in a *README* file
included with the Sahara sources at ``<sahara_home>/db/templates/README.rst``
but it is summarized here.
Flavor id values must be specified for the default templates included
with Sahara. The recommended configuration values below correspond to the
*m1.medium* and *m1.large* flavors in a default OpenStack installation (if
these flavors have been edited, their corresponding values will be different).
Values for flavor_id should be added to ``/etc/sahara/sahara.conf`` or another
configuration file in the sections shown here:
.. sourcecode:: ini
[DEFAULT]
# Use m1.medium for {flavor_id} unless specified in another section
flavor_id = 2
[cdh-5-default-namenode]
# Use m1.large for {flavor_id} in the cdh-5-default-namenode template
flavor_id = 4
[cdh-530-default-namenode]
# Use m1.large for {flavor_id} in the cdh-530-default-namenode template
flavor_id = 4
The above configuration values are included in a sample configuration
file at ``<sahara_home>/plugins/default_templates/template.conf``
The command to install all of the default templates is as follows, where
``$TENANT_ID`` should be a valid tenant id and the above configuration values
have been set in ``myconfig``:
.. sourcecode:: console
$ sahara-templates --config-file /etc/sahara/sahara.conf --config-file myconfig update -t $TENANT_ID
Help is available from the ``sahara-templates`` command:
.. sourcecode:: console
$ sahara-templates --help
$ sahara-templates update --help
Notes:
------