Merge pull request #27995 from jacobhammons/pillar-doc

added link to grains security FAQ to targeting and pillar topics.

doc/faq.rst

@@ -295,7 +295,7 @@ https://github.com/saltstack-formulas/salt-formula
 .. _faq-grain-security:
 
 Is Targeting using Grain Data Secure?
-=====================================
+-------------------------------------
 
 Because grains can be set by users that have access to the minion configuration
 files on the local system, grains are considered less secure than other

doc/topics/pillar/index.rst

@@ -85,6 +85,10 @@ by their ``os`` grain:
 
     company: Foo Industries
 
+.. important::
+  See :ref:`Is Targeting using Grain Data Secure? <faq-grain-security>` for
+  important security information.
+
 The above pillar sets two key/value pairs. If a minion is running RedHat, then
 the ``apache`` key is set to ``httpd`` and the ``git`` key is set to the value
 of ``git``. If the minion is running Debian, those values are changed to

doc/topics/targeting/grains.rst

@@ -22,6 +22,10 @@ to a custom grain, grain data is refreshed.
     Grains resolve to lowercase letters. For example, ``FOO``, and ``foo``
     target the same grain.
 
+.. important::
+  See :ref:`Is Targeting using Grain Data Secure? <faq-grain-security>` for
+  important security information.
+
 Match all CentOS minions:
 
 .. code-block:: bash