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The ``file_tree`` external pillar allows values from all files in a directory
tree to be imported as Pillar data.
.. note::
This is an external pillar and is subject to the :ref:`rules and
constraints <external-pillars>` governing external pillars.
.. versionadded:: 2015.5.0
In this pillar, data is organized by either Minion ID or Nodegroup name. To
setup pillar data for a specific Minion, place it in
``<root_dir>/hosts/<minion_id>``. To setup pillar data for an entire
Nodegroup, place it in ``<root_dir>/nodegroups/<node_group>`` where
``<node_group>`` is the Nodegroup's name.
Example ``file_tree`` Pillar
============================
Master Configuration
--------------------
.. code-block:: yaml
ext_pillar:
- file_tree:
root_dir: /srv/ext_pillar
follow_dir_links: False
keep_newline: True
The ``root_dir`` parameter is required and points to the directory where files
for each host are stored. The ``follow_dir_links`` parameter is optional and
defaults to False. If ``follow_dir_links`` is set to True, this external pillar
will follow symbolic links to other directories.
.. warning::
Be careful when using ``follow_dir_links``, as a recursive symlink chain
will result in unexpected results.
.. versionchanged:: 2018.3.0
If ``root_dir`` is a relative path, it will be treated as relative to the
:conf_master:`pillar_roots` of the environment specified by
:conf_minion:`pillarenv`. If an environment specifies multiple
roots, this module will search for files relative to all of them, in order,
merging the results.
If ``keep_newline`` is set to ``True``, then the pillar values for files ending
in newlines will keep that newline. The default behavior is to remove the
end-of-file newline. ``keep_newline`` should be turned on if the pillar data is
intended to be used to deploy a file using ``contents_pillar`` with a
:py:func:`file.managed <salt.states.file.managed>` state.
.. versionchanged:: 2015.8.4
The ``raw_data`` parameter has been renamed to ``keep_newline``. In earlier
releases, ``raw_data`` must be used. Also, this parameter can now be a list
of globs, allowing for more granular control over which pillar values keep
their end-of-file newline. The globs match paths relative to the
directories named for minion IDs and nodegroups underneath the ``root_dir``
(see the layout examples in the below sections).
.. code-block:: yaml
ext_pillar:
- file_tree:
root_dir: /path/to/root/directory
keep_newline:
- files/testdir/*
.. note::
In earlier releases, this documentation incorrectly stated that binary
files would not affected by the ``keep_newline`` configuration. However,
this module does not actually distinguish between binary and text files.
.. versionchanged:: 2017.7.0
Templating/rendering has been added. You can now specify a default render
pipeline and a black- and whitelist of (dis)allowed renderers.
``template`` must be set to ``True`` for templating to happen.
.. code-block:: yaml
ext_pillar:
- file_tree:
root_dir: /path/to/root/directory
render_default: jinja|yaml
renderer_blacklist:
- gpg
renderer_whitelist:
- jinja
- yaml
template: True
Assigning Pillar Data to Individual Hosts
-----------------------------------------
To configure pillar data for each host, this external pillar will recursively
iterate over ``root_dir``/hosts/``id`` (where ``id`` is a minion ID), and
compile pillar data with each subdirectory as a dictionary key and each file
as a value.
For example, the following ``root_dir`` tree:
.. code-block:: text
./hosts/
./hosts/test-host/
./hosts/test-host/files/
./hosts/test-host/files/testdir/
./hosts/test-host/files/testdir/file1.txt
./hosts/test-host/files/testdir/file2.txt
./hosts/test-host/files/another-testdir/
./hosts/test-host/files/another-testdir/symlink-to-file1.txt
will result in the following pillar tree for minion with ID ``test-host``:
.. code-block:: text
test-host:
----------
apache:
----------
config.d:
----------
00_important.conf:
<important_config important_setting="yes" />
20_bob_extra.conf:
<bob_specific_cfg has_freeze_ray="yes" />
corporate_app:
----------
settings:
----------
common_settings:
// This is the main settings file for the corporate
// internal web app
main_setting: probably
bob_settings:
role: bob
.. note::
The leaf data in the example shown is the contents of the pillar files.
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Return a boolean stating whether or not a file's trailing newline should be
removed. To figure this out, first check if keep_newline is a boolean and
if so, return its opposite. Otherwise, iterate over keep_newline and check
if any of the patterns match the file path. If a match is found, return
False, otherwise return True.
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Compile pillar data from the given ``root_dir`` specific to Nodegroup names
and Minion IDs.
If a Minion's ID is not found at ``<root_dir>/host/<minion_id>`` or if it
is not included in any Nodegroups named at
``<root_dir>/nodegroups/<node_group>``, no pillar data provided by this
pillar module will be available for that Minion.
.. versionchanged:: 2017.7.0
Templating/rendering has been added. You can now specify a default
render pipeline and a black- and whitelist of (dis)allowed renderers.
``template`` must be set to ``True`` for templating to happen.
.. code-block:: yaml
ext_pillar:
- file_tree:
root_dir: /path/to/root/directory
render_default: jinja|yaml
renderer_blacklist:
- gpg
renderer_whitelist:
- jinja
- yaml
template: True
:param minion_id:
The ID of the Minion whose pillar data is to be collected
:param pillar:
Unused by the ``file_tree`` pillar module
:param root_dir:
Filesystem directory used as the root for pillar data (e.g.
``/srv/ext_pillar``)
.. versionchanged:: 2018.3.0
If ``root_dir`` is a relative path, it will be treated as relative to the
:conf_master:`pillar_roots` of the environment specified by
:conf_minion:`pillarenv`. If an environment specifies multiple
roots, this module will search for files relative to all of them, in order,
merging the results.
:param follow_dir_links:
Follow symbolic links to directories while collecting pillar files.
Defaults to ``False``.
.. warning::
Care should be exercised when enabling this option as it will
follow links that point outside of ``root_dir``.
.. warning::
Symbolic links that lead to infinite recursion are not filtered.
:param debug:
Enable debug information at log level ``debug``. Defaults to
``False``. This option may be useful to help debug errors when setting
up the ``file_tree`` pillar module.
:param keep_newline:
Preserve the end-of-file newline in files. Defaults to ``False``.
This option may either be a boolean or a list of file globs (as defined
by the `Python fnmatch package
<https://docs.python.org/library/fnmatch.html>`_) for which end-of-file
newlines are to be kept.
``keep_newline`` should be turned on if the pillar data is intended to
be used to deploy a file using ``contents_pillar`` with a
:py:func:`file.managed <salt.states.file.managed>` state.
.. versionchanged:: 2015.8.4
The ``raw_data`` parameter has been renamed to ``keep_newline``. In
earlier releases, ``raw_data`` must be used. Also, this parameter
can now be a list of globs, allowing for more granular control over
which pillar values keep their end-of-file newline. The globs match
paths relative to the directories named for Minion IDs and
Nodegroup namess underneath the ``root_dir``.
.. code-block:: yaml
ext_pillar:
- file_tree:
root_dir: /srv/ext_pillar
keep_newline:
- apache/config.d/*
- corporate_app/settings/*
.. note::
In earlier releases, this documentation incorrectly stated that
binary files would not affected by the ``keep_newline``. However,
this module does not actually distinguish between binary and text
files.
:param render_default:
Override Salt's :conf_master:`default global renderer <renderer>` for
the ``file_tree`` pillar.
.. code-block:: yaml
render_default: jinja
:param renderer_blacklist:
Disallow renderers for pillar files.
.. code-block:: yaml
renderer_blacklist:
- json
:param renderer_whitelist:
Allow renderers for pillar files.
.. code-block:: yaml
renderer_whitelist:
- yaml
- jinja
:param template:
Enable templating of pillar files. Defaults to ``False``.
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