salt/doc/topics/targeting/compound.rst
2014-04-11 11:33:19 -06:00

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.. _targeting-compound:
=================
Compound matchers
=================
Compound matchers allow very granular minion targeting using any of Salt's
matchers. The default matcher is a :mod:`glob <python2:fnmatch>` match, just as
with CLI and :term:`top file` matching. To match using anything other than a
glob, prefix the match string with the appropriate letter from the table below,
followed by an ``@`` sign.
====== ==================== ===============================================================
Letter Match Type Example
====== ==================== ===============================================================
G Grains glob ``G@os:Ubuntu``
E PCRE Minion ID ``E@web\d+\.(dev|qa|prod)\.loc``
P Grains PCRE ``P@os:(RedHat|Fedora|CentOS)``
L List of minions ``L@minion1.example.com,minion3.domain.com or bl*.domain.com``
I Pillar glob ``I@pdata:foobar``
S Subnet/IP address ``S@192.168.1.0/24`` or ``S@192.168.1.100``
R Range cluster ``R@%foo.bar``
====== ==================== ===============================================================
Matchers can be joined using boolean ``and``, ``or``, and ``not`` operators.
For example, the following string matches all Debian minions with a hostname
that begins with ``webserv``, as well as any minions that have a hostname which
matches the :mod:`regular expression <python2:re>` ``web-dc1-srv.*``:
.. code-block:: bash
salt -C 'webserv* and G@os:Debian or E@web-dc1-srv.*' test.ping
That same example expressed in a :term:`top file` looks like the following:
.. code-block:: yaml
base:
'webserv* and G@os:Debian or E@web-dc1-srv.*':
- match: compound
- webserver
Note that a leading ``not`` is not supported in compound matches. Instead,
something like the following must be done:
.. code-block:: bash
salt -C '* and not G@kernel:Darwin' test.ping
Excluding a minion based on its ID is also possible:
.. code-block:: bash
salt -C '* and not web-dc1-srv' test.ping
Precedence Matching
-------------------
Matches can be grouped together with parentheses to explicitely declare precedence amongst groups.
.. code-block:: bash
salt -C sudo salt -C ' ( ms-1 or G@id:ms-3 ) and G@id:ms-3' test.ping
.. note::
Be certain to note that spaces are required between the parantheses and targets. Failing to obey this
rule may result in incorrect targeting!